Transkript

1 PRODUCT CATALOGUE

2 CONTENTS Company Profile M.V. Current Transformers Technical Information About Current Transformers ATB 1O-B ATB 1O-BS / ATB 2O-BS ATB 1O-1O / ATB 1O-15 ATB 2O-B ATB 2O-3A / ATB 2O-3B ATB 2O-1O / ATB 2O-15 ATB 3O-S ATB 3O-4 / ATB 3O-5 / ATB 3O-1O ATU 24 ES24 C3-B ATD 1O / 2O ATN 17 / ESO 17C / ATN 24 ATH 2O / 21 / 22 ATH 3O / 32 ATH 3O-N / 32-N ATH 52 L.V Current Transformers KAP Type A-Kap Type (Split Type) Indoor & Outdoor Ring Type LPCT 115 LPCT 16O Voltage Transformers Technical Information About Voltage Transformers VTB 1O-S / VTB 1O-K / VTB 2O / VTB 2O-K VTB 3O-K VT 2O-B / VTB 3O 2 VTB 1O / 2 VTB 2O 2 VT 2O-B / 2 VTB 3O / 2 VT 4O-2OO VTB 1O-KF / VTB 2O-KF / VTB 3O-KF ES 12 VR-F / ES 24 V2-F VTB 1O-SF / VTB 1O-EF/ VTB 2O-F VTB 3O-F ES 17 V3 ES 24 V2-B ES 24 V1 VTU 24 VTH 2O / VTH 3O VTH 2O-N / VTH 3O-N 2VTH 2O / 2VTH 3O 2VTH 2O-N / 2VTH 3O-N Insulators Technical Information About Insulators Special Products Page 2 Page 5 Page 6 Page 1O Page 12 Page 14 Page 16 Page 18 Page 2O Page 22 Page 24 Page 26 Page 28 Page 3O Page 32 Page 34 Page 36 Page 38 Page 4O Page 43 Page 44 Page 47 Page 49 Page 5O Page 51 Page 53 Page 54 Page 58 Page 6O Page 62 Page 64 Page 66 Page 68 Page 7O Page 72 Page 74 Page 76 Page 78 Page 8O Page 82 Page 84 Page 86 Page 88 Page 9O Page 93 Page 94 Page 1OO

3 COMPANY PROFILE GENERAL INFORMATION ABOUT ESITAS GROUP COMPANIES Mission Statement As Esitas Group, we aim to be the main supplier of the market leaders in the world transformer industry and to be a permanent player in the developing countries; by keeping our leader position in domestic market in instrument transformers and increasing awareness of our products in the global market, together with continuously improving our existent quality and introducing innovati- ons in order to increase efficiency for ourselves and our customers. Group Companies: Esitas Brand has been in the transformer industry more than 25 years. Esitas Group Companies have been producing and serving the electrical products and contacting businesses with two factories specializing in their markets. ESITAS ELEKTRIK is the parent company of the group located in Istanbul, Turkey produces and sells Low and Medium Voltage Instrument Transformers (both Current - Voltage and Indoor- Outdoor Types), Low and Medium Voltage Insulators and LPCT s. ESITAS ELEKTRIK is in the preferred suppliers list of Turkish Electric Authority, has been selling to many foreign electricity authorities and to various branches of multinational market leaders in the industry like ABB, Schneider, Siemens and others. 2

4 PT ESITAS PACIFIC is the Group s production plant located in Jakarta Indonesia produces and sells Low and Medium Voltage Instrument Transformers (both Current-Voltage and Indoor-Outdoor Types), Low and Medium Voltage Insulators. Indonesia founded to serve the customers more conveniently in Asia Pacific zone and to further furnish its existence in the world market. With its mission of... continuously improving our existent quality and introducing innovations in order to increase efficiency for ourselves and our customers, Esitas is your partner in the world transformer market. 3

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7 CURRENT TRANSFORMERS General Definitions General definitions have been given according to International Standarts IEC 6OO44. Instrument Transformer A transformer intended to supply measuring instruments meters, protection relays and other similiar apparatus. Applicable Standards Our transformers comply with applicable national and international standards. Current Transformers An instrument transformer in which the secondary current, in normal conditions of use, is substantially proportional to the primary current and differs in phase from it by angle which is approximately zero for an appropriate direction of the connections. It isolates the instrument and protection circuit from the primary side and protect the devices against overload according to the overcurrent characteristics of the transformer. Current transformers can have several secondary windings with cores of identical of different characteristics completely isolated from each other. Measuring Current Transformer A current transformer intended to supply indicating instruments, integrating meters and similiar apparatus. Protective Current Transformer A current transformer intended to supply protective relays. Primary Winding The winding through which flows the current to be transformed. Secondary Winding The winding, which supplies the current circuits of measuring instruments, meters, relays or similiar devices. Secondary Circuit The external circuit supplied by the secondary winding of a transformer. Rated Primary Current The value of the primary current on which the performance of the transformer is based. Rated Secondary Current The value of the secondary current on which the performance of the transformer is based. Rated Transformation Ratio The ratio of rated primary current to the rated secondary current (I1N/I2N-i.e. I2N-i.e. 1OO/5A) Current Error (Ratio Error) The error which a transformer introduces into the measurement of a current and which arises from the fact that the actual transformation ratio is not equal to the rated transformation ratio. The current error expressed in per cent is given by formula: Current Error % (Kn Is - Ip) Where Kn is the rated transformation ratio; Ip is the actual primary current Is is the actual secondary current when Ip is flowing under the conditions of measurements. 6

8 Accuracy Class A designation assigned to a current transformer errors of which remain within specified limits under prescribed conditions of use. Burden The impedance of the secondary circuit in ohms and power-factor. The burden is usually expressed as the apparent power in voltamperes absorbed at a specified power-factor and at the rated secondary current. Rated Burden The value of the burden on which the accuracy requirements are based on. Rated Output The value of the apparent power (in voltamperes at a specified power-factor) which the transformer is intended to supply to the secondary circuit at the rated secondary current and with rated burden connected to it. Rated Insulation Level The combination of voltage values which characterizes the insulation of a transformer with regard to its capability to whitstand dielectric stresses. Rated Frequency This is the frequency for which the transformer is designed and given in Hz on the rating plate. Rated Short-Time Thermal Current (Ith) The r.m.s. value of the primary current which a transformer will withstand for one second without suffering harmful effects the secondary winding being short-circuited. Rated Dynamic Current (ldyn) The peak value of the primary current which a transformer will withstand without being damaged electrically or mechanically by the resulting electromagnetic forces the secondary winding being short-circuited. Rated Continuous Thermal Current The value of the current which can be permitted to flow continuously in the primary winding the secondary winding being connected to the rated burden without temperature rise exceeding the values specified. 7

9 CURRENT TRANSFORMERS CONNECTION DIAGRAMS Single Ratio Current Transformers P1 P2 P1 P2 S1 Single Core S2 1S1 1S2 2S1 2S2 3S1 Multi Cores 3S2 Reconnection of Current Transformer In case of changeable ratios, it is possible to design the transformer with primary reconnection or secondary tapping; Primary Reconnection Changeover will be done at the primary side by using joint bars. Can be used only for primary currents up to 2 x 6OOA P1 C1 C2 P2 S1 S2 C1 -C2 short circuited: low rated current P1 - C1 and P2 - C2 short circuited: high rated current Secondary Tapping Changeover will be done at the secondary side. P1 P2 S1 S2 S3 S1 -S2 low rated current S1 - S3 high rated current 8

10 Safety Operation Conditions for Current Transformers - When the secondary terminals are connected to the measuring or protection devices one of the terminals should be earthed for safety as seen in Diagram-1. P1 P2 Diagram-1 S1 A S2 - The secondary circuit of a current transformer must not be operated with an open - circuit. - The secondary winding of a current transformer which will not be used must be short - circuited and earthed as seen in Diagram-2 Diagram-2 S1 P1 P2 S2 - For the transformer with reconnectable and - or tapped secondaries unused terminals must be left open as seen in Diagram-3. Diagram-3 P1 P2 S1 A S2 S3 open - The current transformers which have capacitive divider tap (Ck) must be connected to the indicator if the tap will not be used then it must be earthed. M.V. CURRENT TRANSFORMERS CONNECTION CLEARENCES a b Insulation Level 12kV 24kV 36kV a minimum 1OOmm 19Omm 3O5mm b minimum 11Omm 21Omm 325mm 9

11 CURRENT TRANSFORMERS INDOOR SUPPORT TYPE CAST RESIN INSULATED CURRENT TRANSFORMERS (Um=3,6kV... 12kV BLOCK ) - Up to 3 cores* - On request with capacitive layer. - On request with barrier. Technical Data Operating voltage, Um (kv) ATB 1O-B Rated power-frequency withstand voltage (1 minute) (kv) Rated frequency (Hz) Primary rated current (A) Primary reconnection (A) Secondary rated current (A) Metering classes Protection classes Rated short-time thermal current (lth) (1s) (ka) Rated dynamic current (ldyn) (ka) Short-time load (mechanical) (N) Insulation class Ambient temperature ( C) Altitude (m) Standard Weight (approx.) (kg) ATB 1O-B2 ATB 1O-B3 ATB 1O-2 3,6 7,2 12 1O 2O 28 4O 6O 75 5O-6O 5 - O 2 x 5-2 x 6OO 1-5 O,2 - O,2S - O,5 - O,5S Acc. to IEC 6OO44-1 5P- 1OP; CI:PX Acc. to IEC 6OO44-1 max. 1OOO x In 2,5 x lth 5OOO E O** 1OOO (On request 3OOOA 1.Oxln / Cont. & Insulation class B ) According to the customer requirements 2O On request operating voltage of 17,5 kv is available. * For more cores please contact with ESITAS for feasibility. ** It can be produced according to customer's specified ambient temperature.please contact with ESiTAS for feasibility.

12 INDOOR SUPPORT TYPE CAST RESIN INSULATED C.T. S TECHNICAL DRAWING (Um=3,6kV... 12kV BLOCK ) ATB 1O-B ATB 1O-B2 ATB 1O-B3 ATB 1O-2 A B C D E F G H O O O O O O 2O 2O O O O 2O O O 15O 27O 2O TIGHTENING TORQUE (Nm) M5 (Secondary Terminal) M8 (Ground Terminal) M12 (Primary Terminal) min. 2.5 max O 6O 7O - All dimensions are in mm. - Tolerances are according to DIN 7168-g when not specified. - Esitas reserves the right to change the specifications and the dimensions of the goods. Please ask for updated information. - Customer designed products are also available. 11

13 CURRENT TRANSFORMERS INDOOR SUPPORT TYPE CAST RESIN INSULATED CURRENT TRANSFORMERS (Um=3,6kV... 12kV, 17, kV NEW BLOCK ) - Up to 3 cores* - On request with capacitive layer. - On request with barrier. Technical Data Operating voltage, Um (kv) Rated power-frequency withstand voltage (1 minute) (kv) Rated frequency (Hz) Primary rated current (A) Primary reconnection (A) Secondary rated current (A) Metering classes Protection classes Rated short-time thermal current (lth) (1s) (ka) Rated dynamic current (ldyn) (ka) Short-time load (mechanical) (N) Insulation class Ambient temperature ( C) Altitude (m) Standard Weight (approx.) (kg) ATB 1O-BS 3,6 7,2 12 1O 2O 28 4O 6O 75 5O-6O 5 - O 2 x 5-2 x 6OO 1-5 ATB 2O-BS 17, O O,2 - O,2S - O,5 - O,5S Acc. to IEC 6OO44-1 5P- 1OP; CI:PX Acc. to IEC 6OO44-1 max. 1OOO x In 2,5 x lth 5OOO E O*** 1OOO According to the customer requirements 2O - 25 ** (On request 3OOOA 1.Oxln / Cont. & Insulation class B ) 3O 12 * For more cores please contact with ESITAS for feasibility. ** On request ATB 1O-BS operating voltage of 17,5kV is available. *** It can be produced according to customer's specified ambient temperature.please contact with ESITAS for feasibility.

14 INDOOR SUPPORT TYPE CAST RESIN INSULATED C.T. S TECHNICAL DRAWING (Um=3,6kV... 12kV, 17, kV NEW BLOCK ) 8Omm will be 7Omm at ATB1O-BS ATB 1O-BS ATB 2O-BS A B C D E F G H I J O O 2O O 178 3OO O 15O 28O 2O TIGHTENING TORQUE (Nm) M5 (Secondary Terminal) M8 (Ground Terminal) M12 (Primary Terminal) min. 2.5 max O 6O 7O - All dimensions are in mm. - Tolerances are according to DIN 7168-g when not specified. - Esitas reserves the right to change the specifications and the dimensions of the goods. Please ask for updated information. - Customer designed products are also available. 13

15 CURRENT TRANSFORMERS INDOOR SUPPORT TYPE CAST RESIN INSULATED CURRENT TRANSFORMERS (Um=3,6kV... 12kV NARROW BLOCK ) Types: ATB 1O-1O ATB 1O-15 - ATB 1O-1O up to 1 core* - ATB 1O-15 up to 2 cores.* - On request with capacitive layer. - On request with barrier. Technical Data Operating voltage, Um (kv) Rated power-frequency withstand voltage (1 minute) (kv) Rated frequency (Hz) Primary rated current (A) Primary reconnection (A) Secondary rated current (A) Metering classes Protection classes Rated short-time thermal current (lth) (1s) (ka) Rated dynamic current (ldyn) (ka) Short-time load (mechanical) (N) Insulation class Ambient temperature ( C) Altitude (m) Standard Weight (approx.) (kg) ATB 1O-1O ATB 1O-15 3,6 7,2 12 1O 4O 2O 28 6O 75 5O-6O 5-up to 1 2x5-2x6OO 1-5 O,2 - O,2S - O,5 - O,5S Acc. to IEC 6OO44-1 5P- 1OP; CI:PX Acc. to IEC 6OO44-1 (max. 2OO x In)** 2,5 x lth 5OOO E O*** 1OOO According to the customer requirements On request operating voltage of 17,5 kv is available. * For more cores please contact with ESITAS for feasibility. ** May vary according to requested primary current and core values. *** It can be produced according to customer's specified ambient temperature. Please contact with ESiTAS for feasibility.

16 INDOOR SUPPORT TYPE CAST RESIN INSULATED C.T. S TECHNICAL DRAWING (Um=3,6kV... 12kV NARROW BLOCK ) ATB 1O-1O ATB 1O-15 A B C D E F G 33O O O 2O 33O O O 2O TIGHTENING TORQUE (Nm) M5 (Secondary Terminal) M8 (Ground Terminal) M12 (Primary Terminal) min. 2.5 max O 6O 7O - All dimensions are in mm. - Tolerances are according to DIN 7168-g when not specified. - Esitas reserves the right to change the specifications and the dimensions of the goods. Please ask for updated information. - Customer designed products are also available. 15

17 CURRENT TRANSFORMERS INDOOR SUPPORT TYPE CAST RESIN INSULATED CURRENT TRANSFORMERS (Um=17,5kV... 24kV BLOCK ) - Up to 3 cores.* - On request with capacitive layer. - On request with barrier. Technical Data Operating voltage, Um (kv) Rated power-frequency withstand voltage (1 minute) (kv) Rated frequency (Hz) Primary rated current (A) Primary reconnection (A) Secondary rated current (A) Metering classes Protection classes Rated short-time thermal current (lth) (1s) (ka) Rated dynamic current (ldyn) (ka) Short-time load (mechanical) (N) Insulation class Ambient temperature ( C) Altitude (m) Standard Weight (approx.) (kg) ATB 2O-B ATB 2O-B2 ATB 2O-B4 ATB 2O-3 ATB 2O-3B ATB 2O-3K O O-6O 5 - O 2 x 5-2 x 6OO 1-5 O,2 - O,2S - O,5 - O,5S Acc. to IEC 6OO44-1 5P- 1OP; CI:PX Acc. to IEC 6OO44-1 max. 1OOO x In 2,5 x lth 5OOO E O** 1OOO (On request 3OOOA 1.Oxln / Cont. & Insulation class B ) According to the customer requirements 3O O 16 * For more cores please contact with ESITAS for feasibility. ** It can be produced according to customer's specified ambient temperature.please contact with ESITAS for feasibility.

18 INDOOR SUPPORT TYPE CAST RESIN INSULATED C.T. S TECHNICAL DRAWING (Um=17,5kV... 24kV BLOCK ) ATB 2O-B ATB 2O-B2 ATB 2O-B4 ATB 2O-3 ATB 2O-3B ATB 2O-3K A B C D E F G H I O O O 28O 2O O 2O5 29O O 28O O O O 28O O O O O 2O5 39O O O O O TIGHTENING TORQUE (Nm) M5 (Secondary Terminal) M8 (Ground Terminal) M12 (Primary Terminal) min. 2.5 max O 6O 7O - All dimensions are in mm. - Tolerances are according to DIN 7168-g when not specified. - Esitas reserves the right to change the specifications and the dimensions of the goods. Please ask for updated information. - Customer designed products are also available. 17

19 CURRENT TRANSFORMERS INDOOR SUPPORT TYPE CAST RESIN INSULATED CURRENT TRANSFORMERS (Um=17,5kV... 24kV NEW BLOCK ) Types: ATB 2O-3A ATB 2O-3B - Up to 3 cores.* - On request with capacitive layer. - On request with barrier. Technical Data Operating voltage, Um (kv) Rated power-frequency withstand voltage (1 minute) (kv) Rated frequency (Hz) Primary rated current (A) Primary reconnection (A) Secondary rated current (A) Metering classes Protection classes Rated short-time thermal current (lth) (1s) (ka) Rated dynamic current (ldyn) (ka) Short-time load (mechanical) (N) Insulation class Ambient temperature ( C) Altitude (m) Standard Weight (approx.) (kg) ATB 2O-3A O O-6O 5 - O 2 x 5-2 x 6OO 1-5 O,2 - O,2S - O,5 - O,5S Acc. to IEC 6OO44-1 5P- 1OP; CI:PX Acc. to IEC 6OO44-1 max. 1OOO x In 2,5 x lth 5OOO E O** 1OOO ATB 2O-3B According to the customer requirements (On request 3OOOA 1.Oxln / Cont. & Insulation class B ) 18 * For more cores please contact with ESITAS for feasibility. ** It can be produced according to customer's specified ambient temperature.please contact with ESITAS for feasibility.

20 INDOOR SUPPORT TYPE CAST RESIN INSULATED C.T. S TECHNICAL DRAWING (Um=17,5kV... 24kV NEW BLOCK ) ATB 2O-3A ATB 2O-3B A B C D E F G H O O 14O 15O 375 2O O 2O5 39O 14O 18O 375 2O TIGHTENING TORQUE (Nm) M5 (Secondary Terminal) M8 (Ground Terminal) M12 (Primary Terminal) min. 2.5 max O 6O 7O - All dimensions are in mm. - Tolerances are according to DIN 7168-g when not specified. - Esitas reserves the right to change the specifications and the dimensions of the goods. Please ask for updated information. - Customer designed products are also available. 19

21 CURRENT TRANSFORMERS INDOOR SUPPORT TYPE CAST RESIN INSULATED CURRENT TRANSFORMERS (Um=17,5kV... 24kV NARROW BLOCK ) Types: ATB 2O-1O ATB 2O-15 - ATB 2O-1O up to 1 core* - ATB 2O-15 up to 2 cores.* - On request with capacitive layer. - On request with barrier. Technical Data Operating voltage, Um (kv) Rated power-frequency withstand voltage (1 minute) (kv) Rated frequency (Hz) Primary rated current (A) Primary reconnection (A) Secondary rated current (A) Metering classes Protection classes Rated short-time thermal current (lth) (1s) (ka) Rated dynamic current (ldyn) (ka) Short-time load (mechanical) (N) Insulation class Ambient temperature ( C) Altitude (m) Standard Weight (approx.) (kg) ATB 2O-1O O O-6O 5 up to 1 2 x 5-2 x 6OO 1-5 O,2 - O,2S - O,5 - O,5S Acc. to IEC 6OO44-1 5P- 1OP; CI:PX Acc. to IEC 6OO44-1 (max. 3OO x In)** 2,5 x lth 5OOO E O*** 1OOO ATB 2O-15 According to the customer requirements 22 3O 20 * For more cores please contact with ESITAS for feasibility. ** May vary according to requested primary current and core values. *** It can be produced according to customer's specified ambient temperature.please contact with ESITAS for feasibility.

22 INDOOR SUPPORT TYPE CAST RESIN INSULATED C.T. S TECHNICAL DRAWING (Um=17,5kV... 24kV NARROW BLOCK ) ATB 2O-1O ATB 2O-15 A B C D E F G O O 28O 2O O O 28O 2O TIGHTENING TORQUE (Nm) M5 (Secondary Terminal) M8 (Ground Terminal) M12 (Primary Terminal) min. 2.5 max O 6O 7O - All dimensions are in mm. - Tolerances are according to DIN 7168-g when not specified. - Esitas reserves the right to change the specifications and the dimensions of the goods. Please ask for updated information. - Customer designed products are also available. 21

23 CURRENT TRANSFORMERS INDOOR SUPPORT TYPE CAST RESIN INSULATED CURRENT TRANSFORMERS (Um=36kV BLOCK ) - Up to 3 cores.* - On request with capacitive layer. - On request with barrier. Technical Data Operating voltage, Um (kv) Rated power-frequency withstand voltage (1 minute) (kv) Rated frequency (Hz) Primary rated current (A) Primary reconnection (A) Secondary rated current (A) Metering classes Protection classes Rated short-time thermal current (lth) (1s) (ka) Rated dynamic current (ldyn) (ka) Short-time load (mechanical) (N) Insulation class Ambient temperature ( C) Altitude (m) Standard Weight (approx.) (kg) ATB 3O-S ATB 3O-S1 ATB 3O-1 ATB 3O-2 ATB 3O O 17O 5O-6O 5 - O 2 x 5-2 x 6OO 1-5 O,2 - O,2S - O,5 - O,5S Acc. to IEC 6OO44-1 5P- 1OP; CI:PX Acc. to IEC 6OO44-1 max. 1OOO x In 2,5 x lth 5OOO E O** 1OOO (On request 3OOOA 1.Oxln / Cont. & Insulation class B ) According to the customer requirements O * For more cores please contact with ESITAS for feasibility. ** It can be produced according to customer's specified ambient temperature.please contact with ESITAS for feasibility.

24 INDOOR SUPPORT TYPE CAST RESIN INSULATED C.T. S TECHNICAL DRAWING (Um=36kV BLOCK ) A B C D E F G H I J ATB 3O-S ATB 3O-S1 ATB 3O O 36O O 225 3OO O 36O O O 225 3OO O 36O O O 225 3OO 2O 2O 2O ATB 3O O 36O O O 225 3OO 2O ATB 3O O 36O O TIGHTENING TORQUE (Nm) M5 (Secondary Terminal) M8 (Ground Terminal) M12 (Primary Terminal) min. 2.5 max O 6O 7O - All dimensions are in mm. - Tolerances are according to DIN 7168-g when not specified. - Esitas reserves the right to change the specifications and the dimensions of the goods. Please ask for updated information. - Customer designed products are also available. 23

25 CURRENT TRANSFORMERS INDOOR SUPPORT TYPE CAST RESIN INSULATED CURRENT TRANSFORMERS (Um=36kV NARROW BLOCK ) - ATB 3O-4, 3O-5, 3O-1O up to 1 core.* - ATB 3O-15 up to 2 cores.** - On request with capacitive layer. - ATB 3O-1O & ATB 3O-15 with barrier on request. Technical Data Operating voltage, Um (kv) Rated power-frequency withstand voltage (1 minute) (kv) Rated frequency (Hz) Primary rated current (A) Primary reconnection (A) Secondary rated current (A) Metering classes Protection classes Rated short-time thermal current (lth) (1s) (ka) Rated dynamic current (ldyn) (ka) Short-time load (mechanical) (N) Insulation class Ambient temperature ( C) Altitude (m) Standard Weight (approx.) (kg) ATB 3O-4 ATB 3O up to 6OO 2x5-2x3OO 36 7O 17O 5O-6O up to 1 2x5-2x6OO O,2 - O,2S - O,5 - O,5S Acc. to IEC 6OO44-1 max. 3OOxIn** (for 1 measurement core) 5P- 1OP; CI:PX Acc. to IEC 6OO44-1 (for 1 measurement core) 2,5 x lth 5OOO E O*** 1OOO ATB 3O-1O ATB 3O-15 max. 4OOxIn** max. 8OOxIn** max. 3OOxIn** (for 1 measurement core) According to the customer requirements (for 2 cores) 2O * For more cores please contact with ESITAS for feasibility. ** May vary according to requested primary current and core values. *** It can be produced according to customer's specified ambient temperature.please contact with ESITAS for feasibility.

26 INDOOR SUPPORT TYPE CAST RESIN INSULATED C.T. S TECHNICAL DRAWING (Um=36kV NARROW BLOCK ) ATB 3O-4 ATB 3O-5 ATB 3O-1O ATB 3O-15 A B C D E F G H I J O 36O 255 2OO 1OO 18O 225 3OO O 36O O 225 3OO O 36O O 225 3OO O 36O O 225 3OO 2O 2O 2O 2O TIGHTENING TORQUE (Nm) M5 (Secondary Terminal) M8 (Ground Terminal) M 12 (Primary Terminal) min. 2.5 max O 6O 7O - All dimensions are in mm. - Tolerances are according to DIN 7168-g when not specified. - Esitas reserves the right to change the specifications and the dimensions of the goods. Please ask for updated information. - Customer designed products are also available. 25

27 CURRENT TRANSFORMERS INDOOR SUPPORT TYPE CAST RESIN INSULATED NARROW TYPE CURRENT TRANSFORMERS (Um=7,2kV... 24kV BLOCK ) Types: ATU 24 - Up to 2 cores. Technical Data Primary reconnection (A) Secondary rated current (A) Metering classes Protection classes Rated short-time thermal current (lth) (1s) (ka) Rated dynamic current (ldyn) (ka) Short-time load (mechanical) (N) Insulation class Ambient temperature ( C) Altitude (m) Standard Weight (approx.) (kg) Operating voltage, Um (kv) Rated power-frequency withstand voltage (1 minute) (kv) Rated frequency (Hz) Primary rated current (A) ATU 24 7, ,5 24 2O O 6O O-6O 1O - up to 8OO 2x1O - 2x4OO 1-5 O,2 - O,2S - O,5 - O,5S Acc. to IEC 6OO44-1 5P- 1OP Acc. to IEC 6OO44-1 1OO x In* 2,5 x lth 5OOO E O** 1OOO According to the customer requirements * May vary according to requested primary current and core values. ** It can be produced according to customer s specified ambient temperature. Please contact with ESITAS for feasibility.

28 INDOOR SUPPORT TYPE CAST RESIN INSULATED NARROW TYPE C.T. S TECHNICAL DRAWING (Um=7,2kV... 24kV BLOCK ) - All dimensions are in mm. - Tolerances are according to DIN 7168-g when not specified. - Esitas reserves the right to change the specifications and the dimensions of the goods. Please ask for updated information. - Customer designed products are also available. 27

29 CURRENT TRANSFORMERS INDOOR SUPPORT TYPE CAST RESIN INSULATED SPECIAL TYPE CURRENT TRANSFORMERS (Um=7,2kV... 24kV BLOCK ) Types: ES24 C3-B - Up to 2 cores. Technical Data Primary reconnection (A) Secondary rated current (A) Metering classes Protection classes Rated short-time thermal current (lth) (1s) (ka) Rated dynamic current (ldyn) (ka) Short-time load (mechanical) (N) Insulation class Ambient temperature ( C) Altitude (m) Standard Weight (approx.) (kg) Operating voltage, Um (kv) Rated power-frequency withstand voltage (1 minute) (kv) Rated frequency (Hz) Primary rated current (A) ES24 C3-B 7, ,5 24 2O O 6O O-6O 1O - up to 8OO 2x1O - 2x4OO 1-5 O,2 - O,2S - O,5 - O,5S Acc. to IEC 6OO44-1 5P-1OP-PX Acc. to IEC 6OO44-1 Up to 6OkA* 2,5 x lth 5OOO E O** 1OOO According to the customer requirements * May vary according to requested primary current and core values. ** It can be produced according to customer s specified ambient temperature. Please contact with ESITAS for feasibility.

30 INDOOR SUPPORT TYPE CAST RESIN INSULATED SPECIAL TYPE C.T. S TECHNICAL DRAWING (Um=7,2kV... 24kV BLOCK ) - All dimensions are in mm. - Tolerances are according to DIN 7168-g when not specified. - Esitas reserves the right to change the specifications and the dimensions of the goods. Please ask for updated information. - Customer designed products are also available. 29

31 CURRENT TRANSFORMERS INDOOR POST BUSBAR TYPE CAST RESIN INSULATED CURRENT TRANSFORMERS (Um=3,6kV...24kV) - Up to 2 cores.* Technical Data Secondary rated current (A) Metering classes Protection classes Rated short-time thermal current (lth) (1s) (ka) Rated dynamic current (ldyn) (ka) Short-time load (mechanical) (N) Insulation class Ambient temperature ( C) Altitude (m) Standard Weight (approx.) (kg) Operating voltage, Um (kv) Rated power-frequency withstand voltage (1 minute) (kv) Rated frequency (Hz) Primary rated current (A) ATD 1O ATD 2O 3,6 7,2 12 1O 2O 28 4O 6O 75 8OO-3OOO 5O-6O 1-5 O,2 - O,2S - O,5 - O,5S Acc. to IEC 6OO44-1 5P- 1OP; CI:PX Acc. to IEC 6OO44-1 max. 1OO Practically Unlimited 3OOO E O** 1OOO 17, O OO-4OOO According to the customer requirements * For more cores please contact with ESITAS for feasibility. ** It can be produced according to customer's specified ambient temperature.please contact with ESITAS for feasibility.

32 INDOOR POST BUSBAR TYPE CAST RESIN INSULATED C.T. S TECHNICAL DRAWING (Um=3,6kV...24kV) ATD 1O ATD 2O A B C D E F G H I 28O 1O O 1O O 26O TIGHTENING TORQUE (Nm) M5 (Secondary Terminal) min. 2.5 max All dimensions are in mm. - Tolerance is DIN 7168-g. - Esitas reserves the right to change the specifications and the dimensions of the goods. Please ask for updated information. - Customer designed products are also available. 31

33 CURRENT TRANSFORMERS INDOOR POST BUSBAR TYPE CAST RESIN INSULATED CURRENT TRANSFORMERS (Um=3,6kV...24kV) - Up to 3 cores.* Technical Data Secondary rated current (A) Metering classes Protection classes Rated short-time thermal current (lth) (1s) (ka) Rated dynamic current (ldyn) (ka) Short-time load (mechanical) (N) Insulation class Ambient temperature ( C) Altitude (m) Standard Weight (approx.) (kg) Operating voltage, Um (kv) Rated power-frequency withstand voltage (1 minute) (kv) Rated frequency (Hz) Primary rated current (A) ATN 17 ESO 17C ATN 24 3,6 7, ,5 1O 2O O 6O O-6O 8OO-4OOO 1-5 O,2 - O,2S - O,5 - O,5S Acc. to IEC 6OO44-1 5P- 1OP; CI:PX Acc. to IEC 6OO44-1 max. 1OO Practically Unlimited 3OOO E O** 1OOO According to the customer requirements 35 4O 38 17, O * For more cores please contact with ESITAS for feasibility. ** It can be produced according to customer's specified ambient temperature.please contact with ESITAS for feasibility.

34 INDOOR POST BUSBAR TYPE CAST RESIN INSULATED C.T. S TECHNICAL DRAWING (Um=3,6kV...24kV) ATN 17 (width 15Omm ) ATN 17 (width 28Omm ) ATN 24 ESO 17C TIGHTENING TORQUE (Nm) min. max. M5 (Secondary Terminal) 2,5 3,5 - All dimensions are in mm. - Tolerance is DIN 7168-g. - Esitas reserves the right to change the specifications and the dimensions of the goods. Please ask for updated information. - Customer designed products are also available. 33

35 CURRENT TRANSFORMERS OUTDOOR DRY TYPE CAST RESIN INSULATED CURRENT TRANSFORMERS (Um=3,6kV...24kV) - ATH 2O up to 1 core.* - ATH 21 up to 2 cores.* - ATH 22 up to 3 cores.* For the connection of aluminium conductors steel reinforced Technical Data Primary reconnection (A) Secondary rated current (A) Metering classes Protection classes Rated short-time thermal current (lth) (1s) (ka) Rated dynamic current (ldyn) (ka) Short-time load (mechanical) (N) Insulation class Min. creepage distance (mm) Altitude (m) Standard Weight (approx.) (kg) Operating voltage, Um (kv) Rated power-frequency withstand voltage (1 minute) (kv) Rated frequency (Hz) Primary rated current (A) ATH 2O ATH 21 ATH 22 3,6 7,2 12 1O 2O 28 4O 6O 75 5O-6O O 2x5-2x4OO 1-5 O,2 - O,2S - O,5 - O,5S Acc. to IEC 6OO44-1 5P- 1OP; CI:PX Acc. to IEC 6OO44-1 max. 1OOO x In 2,5 x lth 24OO E 17, O x5-2x6OO 56O O According to the customer requirements According to the customer requirements * For more cores please contact with ESITAS for feasibility.

36 OUTDOOR DRY TYPE CAST RESIN INSULATED C.T. S TECHNICAL DRAWING (Um=3,6kV...24kV) A B C D E F G H ATH 2O 245 1O5 max. max. 35O 22O O max. max. ATH 21 35O O 3OO 34O 27O 2OO 65 max. max. ATH 22 4OO O 34O 7O 38O 415 TIGHTENING TORQUE (Nm) min. max. M6 (Secondary Terminal) 3 5 M12 (Primary & Ground Terminal) 6O 7O - All dimensions are in mm. - Esitas reserves the right to change the specifications and the dimensions of the goods. Please ask for updated information. - Customer designed products are also available. 35

37 CURRENT TRANSFORMERS OUTDOOR DRY TYPE CAST RESIN INSULATED CURRENT TRANSFORMERS (Um=36kV) Types: ATH 3O ATH 32 - ATH 3O up to 2 cores.* - ATH 32 up to 3 cores.* Technical Data For the connection of aluminium conductors steel reinforced Primary reconnection (A) Secondary rated current (A) Metering classes Protection classes Rated short-time thermal current (lth) (1s) (ka) Rated dynamic current (ldyn) (ka) Short-time load (mechanical) (N) Insulation class Min. creepage distance (mm) Altitude (m) Standard Weight (approx.) (kg) Operating voltage, Um (kv) Rated power-frequency withstand voltage (1 minute) (kv) Rated frequency (Hz) Primary rated current (A) ATH 3O ATH O 17O 5O-6O 5-O 2x5-2x6OO 1-5 O,2 - O,2S - O,5 - O,5S Acc. to IEC 6OO44-1 5P- 1OP; CI:PX Acc. to IEC 6OO44-1 max. 1OOO x In 2,5 x lth O E 114O According to the customer requirements According to the customer requirements * For more cores please contact with ESITAS for feasibility.

38 OUTDOOR DRY TYPE CAST RESIN INSULATED C.T. S TECHNICAL DRAWING (Um=36kV) A B C D E F G H ATH 3O 35O 165 max. max OO 34O 27O 2OO 65 max. max. ATH 32 39O 19O 35O 32O O3 TIGHTENING TORQUE (Nm) min. max. M6 (Secondary Terminal) 3 5 M12 (Primary & Ground Terminal) 6O 7O - All dimensions are in mm. - Esitas reserves the right to change the specifications and the dimensions of the goods. Please ask for updated information. - Customer designed products are also available. 37

39 CURRENT TRANSFORMERS OUTDOOR DRY TYPE CAST RESIN INSULATED CURRENT TRANSFORMERS (Um=36kV) Types: ATH 3O-N ATH 32-N - ATH 3O-N up to 2 cores.* - ATH 32-N up to 3 cores.* Technical Data For the connection of aluminium conductors steel reinforced Primary reconnection (A) Secondary rated current (A) Metering classes Protection classes Rated short-time thermal current (lth) (1s) (ka) Rated dynamic current (ldyn) (ka) Short-time load (mechanical) (N) Insulation class Min. creepage distance (mm) Altitude (m) Standard Weight (approx.) (kg) Operating voltage, Um (kv) Rated power-frequency withstand voltage (1 minute) (kv) Rated frequency (Hz) Primary rated current (A) ATH 3O-N ATH 32-N 36 7O 17O 5O-6O 5-O 2x5-2x6OO 1-5 O,2 - O,2S - O,5 - O,5S Acc. to IEC 6OO44-1 5P- 1OP; CI:PX Acc. to IEC 6OO44-1 max. 1OOO x In 2,5 x lth O E 114O According to the customer requirements According to the customer requirements * For more cores please contact with ESITAS for feasibility.

40 OUTDOOR DRY TYPE CAST RESIN INSULATED C.T. S TECHNICAL DRAWING (Um=36kV) A B C D E F G H ATH 3O-N 35O 165 max. max OO 34O 27O 2OO 65 max. max. ATH 32-N 39O O 32O OO TIGHTENING TORQUE (Nm) min. max. M6 (Secondary Terminal) 3 5 M12 (Primary Terminal) 6O 7O - All dimensions are in mm. - Esitas reserves the right to change the specifications and the dimensions of the goods. Please ask for updated information. - Customer designed products are also available. 39

41 CURRENT TRANSFORMERS OUTDOOR DRY TYPE CAST RESIN INSULATED CURRENT TRANSFORMERS (Um=52kV) Types: ATH 52 - Up to 2 cores.* Technical Data For the connection of aluminium conductors steel reinforced Primary reconnection (A) Secondary rated current (A) Metering classes Protection classes Rated short-time thermal current (lth) (1s) (ka) Rated dynamic current (ldyn) (ka) Short-time load (mechanical) (N) Insulation class Min. creepage distance (mm) Altitude (m) Standard Weight (approx.) (kg) Operating voltage, Um (kv) Rated power-frequency withstand voltage (1 minute) (kv) Rated frequency (Hz) Primary rated current (A) ATH O-6O 5-O 2x5-2x6OO 1-5 O,2 - O,2S - O,5 - O,5S Acc. to IEC 6OO44-1 5P- 1OP; CI:PX Acc. to IEC 6OO44-1 max. 1OOO x In 2,5 x lth O E 16OO According to the customer requirements According to the customer requirements 14O 40 * For more cores please contact with ESITAS for feasibility.

42 OUTDOOR DRY TYPE CAST RESIN INSULATED C.T. S TECHNICAL DRAWING (Um=52kV ) TIGHTENING TORQUE (Nm) min. max. M6 (Secondary Terminal) 3 5 M12 (Primary & Ground Terminal) 6O 7O - All dimensions are in mm. - Esitas reserves the right to change the specifications and the dimensions of the goods. Please ask for updated information. - Customer designed products are also available. 41

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45 CURRENT TRANSFORMERS INDOOR KAP TYPE (CABLE TYPE) CAST RESIN INSULATED AND ENCLOSED BY PLASTIC COVER CURRENT TRANSFORMERS (Um=O,72kV) Types: KAP - Width 35, 55mm up to 1 core.* - Width 95, 115mm up to 2 cores.* Technical Data Operating voltage, Um (kv) Rated power-frequency withstand voltage (1 minute) (kv) Rated frequency (Hz) Primary rated current (A) Secondary rated current (A) Metering classes Protection classes Rated short-time thermal current (lth) (1s) (ka) Rated dynamic current (ldyn) (ka) Insulation class Ambient temperature ( C) Altitude (m) Standard KAP O,72 3-5O-6O 4O... 3OOO 1-5 O,2 - O,2S - O,5 - O,5S Acc. to IEC 6OO44-1 5P- 1OP; Acc. to IEC 6OO44-1 max. 1OO Practically unlimited E O** 1OOO According to the customer requirements 44 * For more cores, please contact with ESITAS for feasibility. ** It can be produced according to customer s specified ambient temperature. Please contact with ESITAS for feasibility.

46 INDOOR KAP TYPE (CABLE TYPE) CAST RESIN INSULATED AND ENCLOSED BY PLASTIC COVER C.T. S TECHNICAL DRAWING (Um=O,72kV) KAP TYPE ( With Horizontal Mounted Plates) CURRENT TRANSFORMER As can be seen In the below tables there are various dimensions of KAP Types. Please contact with ESiTAS for feasibility of required transformer's which have different ratio, class, burden and dimensions. NO TYPE * All dimensions are in mm. ID OD H K O A B C 1 KAP-4O/19O-35 4O 19O O 13O - 2 KAP-4O/19O-55 4O 19O O 13O 25 3 KAP-4O/19O-95 4O 19O O 13O 4O 4 KAP-4O/19O-115 4O 19O O 15O 4O 5 KAP-6O/19O-35 6O 19O O 13O - 6 KAP-6O/19O-55 6O 19O O 13O 25 7 KAP-6O/19O-95 6O 19O O 13O 4O 8 KAP-6O/19O-115 6O 19O O 15O 4O 9 KAP-8O/19O-35 8O 19O O 13O - 1O KAP-8O/19O-55 8O 19O O 13O KAP-8O/19O-95 8O 19O O 13O 4O 12 KAP-8O/19O-115 8O 19O O 15O 4O 13 KAP-4O/21O-35 4O 21O O 13O - 14 KAP-4O/21O-55 4O 21O O 13O KAP-4O/21O-95 4O 21O O 13O 4O 16 KAP-4O/21O-115 4O 21O O 15O 4O 17 KAP-6O/21O-35 6O 21O O 13O - 18 KAP-6O/21O-55 6O 21O O 13O KAP-6O/21O-95 6O 21O O 13O 4O 2O KAP-6O/21O-115 6O 21O O 15O 4O 21 KAP-8O/21O-35 8O 21O O 13O - 22 KAP-8O/21O-55 8O 21O O 13O KAP-8O/21O-95 8O 21O O 13O 4O 24 KAP-8O/21O-115 8O 21O O 15O 4O KAP (DIMENSIONS)* NO TYPE ID 25 KAP-4O/-35 4O 26 KAP-4O/-55 4O 27 KAP-4O/-95 4O 28 KAP-4O/-115 4O 29 KAP-6O/-35 6O 3O KAP-6O/-55 6O 31 KAP-6O/-95 6O 32 KAP-6O/-115 6O 33 KAP-8O/-35 8O 34 KAP-8O/-55 8O 35 KAP-8O/-95 8O 36 KAP-8O/-115 8O 37 KAP-1OO/-35 1OO 38 KAP-1OO/-55 1OO 39 KAP-1OO/-95 1OO 4O KAP-1OO/-115 1OO 41 = KAP-12O/ O 42 KAP-12O/ O 43 KAP-12O/ O 44 KAP-15O/-55 15O 45 KAP-15O/-95 15O 46 KAP-15O/ O 47 KAP-1OO/19O-5519O-55 1OO 48 KAP-1OO/19O-9519O-95 1OO 49 KAP-1OO/19O-11519O-115 1OO 5O KAP-17O/-55 17O 51 KAP-17O/-95 17O 52 KAP-17O/ O TIGHTENING TORQUE (Nm) M5 (Secondary Terminal) 2,5 3,5! Attention : Transformers which have 35mm height ( K), there Is only one connection plate. OD H K O A B C 3O O 13O - 3O O 13O 25 3O O 13O 4O 3O O 15O 4O 3O O 13O - 3O O 13O 25 3O O 13O 4O 3O O 15O 4O 3O O 13O - 3O O 13O 25 3O O 13O 4O 3O O 15O 4O 3O O 13O - 3O O 13O 25 3O O 13O 4O 3O O 15O 4O 3O O 13O 25 3O O 13O 4O 3O O 15O 4O 3O O 13O 25 3O O 13O 4O 3O O 15O 4O 19O O 13O 25 19O O 13O 4O 19O O 15O 4O 3O O 13O 25 3O O 13O 4O 3O O 15O 4O min. max. 45

47 CURRENT TRANSFORMERS INDOOR KAP TYPE (CABLE TYPE) CAST RESIN INSULATED AND ENCLOSED BY PLASTIC COVER C.T. S TECHNICAL DRAWING (Um=O,72kV) KAP TYPE ( With Vertical Mounted Plates) CURRENT TRANSFORMER As can be seen In the below tables there are various dimensions of KAP Types. Please contact with ESiTAS for feasibility of required transformer's which have different ratio, class, burden and dimensions. 46 NO TYPE * All dimensions are in mm. ID OD H K O A B C 1 KAP-4O/19O-35 4O 19O O 13O 4O 2 KAP-4O/19O-55 4O 19O O 13O 25 3 KAP-4O/19O-95 4O 19O O 13O 4O 4 KAP-4O/19O-115 4O 19O O 15O 4O 5 KAP-6O/19O-35 6O 19O O 13O 4O 6 KAP-6O/19O-55 6O 19O O 13O 25 7 KAP-6O/19O-95 6O 19O O 13O 4O 8 KAP-6O/19O-115 6O 19O O 15O 4O 9 KAP-8O/19O-35 8O 19O O 13O 4O 1O KAP-8O/19O-55 8O 19O O 13O KAP-8O/19O-95 8O 19O O 13O 4O 12 KAP-8O/19O-115 8O 19O O 15O 4O 13 KAP-4O/21O-35 4O 21O O 13O 4O 14 KAP-4O/21O-55 4O 21O O 13O KAP-4O/21O-95 4O 21O O 13O 4O 16 KAP-4O/21O-115 4O 21O O 15O 4O 17 KAP-6O/21O-35 6O 21O O 13O 4O 18 KAP-6O/21O-55 6O 21O O 13O KAP-6O/21O-95 6O 21O O 13O 4O 2O KAP-6O/21O-115 6O 21O O 15O 4O 21 KAP-8O/21O-35 8O 21O O 13O 4O 22 KAP-8O/21O-55 8O 21O O 13O KAP-8O/21O-95 8O 21O O 13O 4O 24 KAP-8O/21O-115 8O 21O O 15O 4O KAP (DIMENSIONS)* NO TIGHTENING TORQUE (Nm) min. max. M5 (Secondary Terminal) 2,5 3,5 TYPE ID 25 KAP-4O/-35 4O 26 KAP-4O/-55 4O 27 KAP-4O/-95 4O 28 KAP-4O/-115 4O 29 KAP-6O/-35 6O 3O KAP-6O/-55 6O 31 KAP-6O/-95 6O 32 KAP-6O/-115 6O 33 KAP-8O/-35 8O 34 KAP-8O/-55 8O 35 KAP-8O/-95 8O 36 KAP-8O/-115 8O 37 KAP-1OO/-35 1OO 38 KAP-1OO/-55 1OO 39 KAP-1OO/-95 1OO 4O KAP-1OO/-115 1OO 41 = KAP-12O/ O 42 KAP-12O/ O 43 KAP-12O/ O 44 KAP-15O/-55 15O 45 KAP-15O/-95 15O 46 KAP-15O/ O 47 KAP-1OO/19O-5519O-55 1OO 48 KAP-1OO/19O-9519O-95 1OO 49 KAP-1OO/19O-11519O-115 1OO 5O KAP-17O/-55 17O 51 KAP-17O/-95 17O 52 KAP-17O/ O OD H K O A B C 3O O 13O 4O 3O O 13O 25 3O O 13O 4O 3O O 15O 4O 3O O 13O 4O 3O O 13O 25 3O O 13O 4O 3O O 15O 4O 3O O 13O 4O 3O O 13O 25 3O O 13O 4O 3O O 15O 4O 3O O 13O 4O 3O O 13O 25 3O O 13O 4O 3O O 15O 4O 3O O 13O 25 3O O 13O 4O 3O O 15O 4O 3O O 13O 25 3O O 13O 4O 3O O 15O 4O 19O O 13O 25 19O O 13O 4O 19O O 15O 4O 3O O 13O 25 3O O 13O 4O 3O O 15O 4O

48 Types: A-KAP INDOOR A-KAP TYPE (SPLIT TYPE) CAST RESIN INSULATED AND ENCLOSED BY PLASTIC COVER CURRENT TRANSFORMERS (Um=O,72kV) - Inside Diameters: 8O / 1OO / 12O Technical Data Operating voltage, Um (kv) Rated power-frequency withstand voltage (1 minute) (kv) Rated frequency (Hz) Primary rated current (A) Secondary rated current (A) Metering classes Protection classes Rated short-time thermal current (lth) (1s) (ka) Rated dynamic current (ldyn) (ka) Insulation class Ambient temperature ( C) Altitude (m) Standard A-KAP O,72 3-5O-6O 5O... 2OOO 1-5 O,2 - O,2S - O,5 - O,5S Acc. to IEC 6OO44-1 5P- 1OP; Acc. to IEC 6OO44-1 max. 1OO Practically unlimited E O* 1OOO According to the customer requirements * It can be produced according to customer s specified ambient temperature. Please contact with ESITAS for feasibility. 47

49 CURRENT TRANSFORMERS INDOOR A-KAP TYPE (SPLIT TYPE) CAST RESIN INSULATED AND ENCLOSED BY PLASTIC COVER C.T. S TECHNICAL DRAWING (Um=O,72kV) TIGHTENING TORQUE (Nm) min. max. M5 (Secondary Terminal) 2,5 3,5 48 NO A 1 8O 2 3 1OO 12O * All dimensions are in mm.

50 RING TYPE CURRENT TRANSFORMERS (Um=O,72kV) INDOOR RING OUTDOOR RING - Cable type. - Insulated by cast resin. - Applicable for measurement and protection purposes. BUSHING - For power transformers. - Suitable for operation under oil continuous 13O C. - Insulated by Insulation paper or Polyester tape. - Applicable for measurement and protection purposes. - Dimensions : According to the customer requirements. - Standards : According to the customer requirements. - Please contact with ESITAS for feasibility of required transformer's which have different ratio, class, burden and dimensions. 49

51 CURRENT TRANSFORMERS INDOOR TYPE LPCT (Low Power Current Transformer) (Cable Type) (Um=O, 72kV) Types: LPCT LPCT-115 is defining low power current transformer with voltage output in compliance with IEC 6OO It is designed for measuring nominal currents of 5A to 1 A with ratio 1OOA / 22,5mV. Thus it should be used with a digital relay which have 1OOA / 22,5mV input with LPCT. - Esitas LPCT Set is composed of three LPCT and one digital relay. In case of preffered set without relay, Esitas has to be informed about the relay that will be used, - The sensor is delivered with cable which is between 5m - 8m upon customer request. Advantages : -Same transformer is usable for nominal currents of 5A to 1A. - Accurracy warranty throughout the range : Protection : 5A-4OkA ; class 5P Measuring: 1OOA-1A; class O,5 (class O,75 for 2OA, class 1,5 for 5A). Simple Assembly : - Ready for connection secondary cables. - Simple connection with insulated cable for all types cubicles. Safety Operation : - Openable secondary circuit under load. Technical Data cable between 5m - 8m upon customer request. Standard Class of measuring Class of protection Accuracy limit factor (Kalf) Rated short - time current (ka / 1s) Insulation level (kv) Frequency (Hz) Minimum primary curent (A) Rated primary current (A) Rated secondary voltage (mv) Rated maximum primary current (A) LPCT IEC 6OO OO 22,5 1 O,5 (1OOA - 1A), O,75 (2OA), 1,5 (5A) 5P 15O 4O O,72 / 3 / - 5O - 6O 2 50

52 Types: LPCT-16O INDOOR TYPE LPCT (Low Power Current Transformer) (Cable Type) (Um=O, 72kV) - LPCT-16O is defining low power current transformer with voltage output in compliance with IEC 6OO It is designed for measuring nominal currents of 5A to 2OOO A with ratio 1OOA / 22,5mV. Thus it should be used with a digital relay which have 1OOA / 22,5mV input with LPCT. - Esitas LPCT Set is composed of three LPCT and one digital relay. In case of preffered set without relay, Esitas has to be informed about the relay that will be used, - The sensor is delivered with cable which is between 5m - 8m upon customer request. Advantages : -Same transformer is usable for nominal currents of 5A to 2OOOA. - Accurracy warranty throughout the range : Protection : 5A-4OkA ; class 5P Measuring: 1OOA-2OOOA; class O,5 (class O,75 for 2OA, class 1,5 for 5A). Simple Assembly : - Ready for connection secondary cables. - Simple connection with insulated cable for all types cubicles. Safety Operation : - Openable secondary circuit under load. Technical Data cable between 5m - 8m upon customer request. Standard Class of measuring Class of protection Accuracy limit factor (Kalf) Rated short - time current (ka / 1s) Insulation level (kv) Frequency (Hz) Burden (Rbr) Minimum primary curent (A) Rated primary current (A) Rated secondary voltage (mv) Rated maximum primary current (A) LPCT - 16O IEC 6OO OO 22,5 2OOO O,5 (1OOA - 2OOOA), O,75 (2OA), 1,5 (5A) 5P 4OO 4O O,72 / 3 / - 5O - 6O 2 51

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55 VOLTAGE TRANSFORMERS Voltage Transformers An instrument transformer in which the secondary voltage, in normal conditions of use, is substantially proportional to the primary voltage and differs in phase from it by an angle which is approximately zero for an appropriate direction of the connections. It isolates the primary side rated voltage from the connected instruments and protection circuits and convert the primary voltage into a measurable secondary voltage, which is true in magnitude and phase. Primary Winding The winding to which the voltage to be transformed is applied. Secondary Winding The winding, which supplies the voltage circuits of measuring instruments, meters, relays or similar apparatus. Rated Primary Voltage The value of the primary voltage, which appears in the designation of the transformer and on which its performance is based. Rated Secondary Voltage The value of the secondary voltage, which appears in the designation of the transformer and on which its performance is based. Rated Transformation Ratio The ratio of the rated primary to the rated secondary voltage. Voltage Error (Ratio Error) The error which a transformer introduces into the measurement of a voltage and which arises when the actual transformation ratio is not equal to the transformation ratio. The voltage error, expressed in per cent, is given by the formula: Voltage Error % = Where Kn is the rated transformation ratio; Up is the actual primary voltage; Us is the actual secondary voltage when Up is applied under the conditions of measurement. Accuracy Class A designation assigned to a voltage transformer, the errors of which remain within specified limits under prescribed conditions of use. Burden The admittance of the secondary circuit expressed in siemens and power factor (lagging or leading) Rated Burden The value of the burden on which the accuracy requirements are based on. Rated Output Kn Us - Up Up The value of apparent power (in voltamperes at a specified power - factor), which the transformer is intended to supply to the secondary circuit at the rated secondary voltage and with rated burden, connected to it. Rated Insulation Level x1oo The combination of voltage values which characterizes the isolation of a transformer with regard to its capability to withstand dielectric stresses. Rated Voltage Factor The multiplying factor to be applied to the rated primary voltage to determine the maximum voltage at which a transformer must comply with the relevant thermal requirements for a specified time and with the relevant accuracy requirements. 54

56 CONNECTION DIAGRAMS A N A N A B a n a n da dn a b Single Pole insulated voltage transformer (e.g. 11OOO/ 3: 1OO/ / 3V) Single Pole insulated voltage transformer with an open delta winding (e.g. 11OOO/ / 3: 1OO/ / 3V - 1OO/3V) Double pole insulated voltage transformer (e.g. 11OOO: 1OOV) It can be required for multi secondary winding and changeable ratios. V-Connection of Two Double Pole Insulated Voltage Transformers R S T A B A B a b a b r s t Safety Operation Conditions for Voltage Transformers -When the Secondary terminals are connected to the measuring or protection devices, one of the terminals should be earthed for safety as seen in Diagram-1. A B Diagram-1 a V b 55