ABB Medium Voltage MV Indoor Current Transformers CT's, up to 25kV - ABB TPE

ABB MV Indoor / Outdoor Current Transformers​

ABB MV Indoor Supporting Current Transformers CT's

ABB TPE 6x MV Medium Voltage Current Transformers CT's

Up to 25kV 

 

ABB medium voltage MV indoor transformer type TPE is cast in epoxy resin and designed for installation up to 25kV in two design sizes. The ABB TPE current transformers are designed as a single turn or multi-turn versions with one transformer ratio or with double ratio having the possibility of reconnection on the medium voltage secondary side.

ABB medium voltage MV TPE current transformers can be provided with voltage indication system in accordance with IEC 61243-5 standard (for ABB TPE transformer with 2 secondaries with reconnection no possibility for voltage indication option).

The maximum number of secondary windings is 2 with maximum 6 secondary terminals without possibility of direct grounding thus the connection of each secondary to ground requires separate leads.

The secondary transformer windings are designed for metering or protection purposes, or if agreed for special medium voltage use (PX or "X" class). One terminals of each secondary transformer winding used and one terminal of short-circuited and not used transformer winding have to be earthed during the medium voltage MV operation. The secondary transformer terminals are cast on the front side, allowing M5 connection, covered by terminal cover, which can be sealed. The secondary transformer terminal cover meets IP40 requirement.

The ABB TPE MV medium voltage transformer can be mounted in any position and it is fixed by four M10 bolts. An earth terminal of M8 is located on the base plate close to the transformers secondary terminals.

ABB MV medium voltage current transformers are also available for following voltages : 3.6kV, 6.6kV, 7.2kV, 11kV, 12kV, 17.5kV, 25kV, 33kV, 36kV and 40.5kV.

 

ABB TPE 6x.xx Indoor Supporting Current Transformer Technical Data

Highest Voltage For Equipment	Um	25kV
Rated Power-Frequency Withstand Voltage		50kV
Rated Lighting Impulse Withstand Voltage		125kV
Rated Frequency	Fr	50Hz / 60Hz
Rated Primary Current	Ipn	ABB TPE 60.xx	600A
		ABB TPE 63.xx	1250A
Rated Continuous Thermal Current	Icth	120%
Rated Short-Time Thermal Current	Ith	25kA / 1s
Rated Dynamic Current	Idyn	63kA
Rated Secondary Current	Isn	1A or 5A
Operation		-5°C / + 40°C
Transport and Storage		-40°C / + 70°C
Ratings		as per IEC

 

ABB TPE indoor transformers are designed and manufactured in conformity with the following standards:

IEC 60044-1: Instrument transformers - Part 1: Current transformers
CSN EN 60044-1: Instrument transformers - Part 1: Current transformers
GOST 7746-2001: Current transformers 

 

ABB Medium Voltage MV Indoor Current Transformers CT's, up to 25kV - ABB TPE

ABB Transformers - MV Medium Voltage Transformers Guide