ABB Medium Voltage MV Indoor Bushing Current Transformers CT's, 3.3kV to 11kV/12kV - ABB TTR

ABB Power ProductsABB MV Indoor / Outdoor Current Transformers

ABB TTR 4x Medium Voltage MV Indoor Bushing CT's

3.3kV/3.6kV - 11kV/12kV 

 

ABB TTR6x medium voltage current transformers are cast in epoxy resin for MV insulation up to 25kV - ABB TTR6x medium voltage transformers are configured as bar-type, with either one or more transformer ratios (possibility to change over the meddium voltage MV secondary side) and perform the function of a bushing when installed on the switchboard.

The ABB TTR6x indoor bushing current transformer is designed with either 1 or 2 secondary transformer windings and depending on the combinagtion of parameters (accuracy class, burden, short circuit current, overcurrent factor) with the possibility to choose from various sizes of the medium voltage transformer.

The secondary MV transformer windings are used for measurement or protection purposes - one transformer terminal of each secondary transformer winding in use and one terminal of short-circuited and not used medium voltage winding have to be earthed during the transformer operation. The seoondary windings are lead out into a cast-type secondary terminal board, covered with plastic cover which may be sealed. The ABB transformer can be mounted in any position for efficient and reliable MV medium voltage performance. The ABB transformer is fixed by using four screws.

ABB TTR 4x Current Transformers CT
 

ABB TTR MV Indoor Bushing Current Transformer Features
Highest Voltage For Equipment 12kV
Power Frequency Test Voltage, 1min 28kV
Lighting Impulse Test Voltage 75kV
Rated Continuous Thermal Current 100A - 2500A
Rated Short Time Thermal Current 60kA - 100kA


ABB TTR 4x Current Transformer

ABB TTR 4x. xx Indoor Busing Current Transformer Specifications
V* Type Rated Curr-ent Dimensions W **
A B C D E F G H H∞ 

ØI

ØJ K ØL
12 kV ABB TTR 41.11 To 600  A 402  mm 214 mm 170 mm 120 mm 162 mm 60 mm 30 mm 16 mm 6 mm 71 mm 156 mm 136 mm 160 mm 10  kg
ABB TTR 42.11 To 300  A 500  mm 214 mm 170 mm 220 mm 162 mm 60 mm 30 mm 16 mm 6 mm 71 mm 156 mm 136 mm 160 mm 17  kg
ABB TTR 43.11 750A       -  1250 A 472  mm 214 mm 170 mm 120 mm 162 mm 95 mm 30 mm 20 mm 10 mm 71 mm 156 mm 136 mm 160 mm 11  kg
ABB TTR 44.11 1500 A 482  mm 252 mm 208 mm 120 mm 162 mm 100 mm 30 mm 16 mm 20 mm 110 mm 192 mm 174 mm 196 mm 15  kg
ABB TTR 45.11 2000 A 482  mm 252 mm 208 mm 120 mm 162 mm 100 mm 30 mm 20 mm 20 mm 110 mm 192 mm 174 mm 196 mm 21  kg
ABB TTR 46.11 2500 A 502  mm 252 mm 208 mm 120 mm 162 mm 110 mm 30 mm 20 mm 20 mm 110 mm 192 mm 174 mm 196 mm 24  kg

*V=Insulation Voltage  **W=Weight

ABB indoor bushing current transformers for MV medium voltage service are conformant to following specifications : IEC, VDE, ANSI, BS, GOST and CSN.




Adobe ABB Medium Voltage MV Indoor Bushing Current Transformers CT's, up to 3.3kV 3.6kV 11kV 12kV - ABB

Adobe ABB Transformers - MV Medium Voltage Transformers Guide

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ABB Medium Voltage MV Indoor Bushing Current Transformers CT's, 3.3kV to 11kV/12kV - ABB TTR