Modular units

PE57222
PE57162
Characteristics of
the functional units
Current transformer ARM6T
AMTED398078EN.indd
Current transformers for 36 kV
For units DM1-A, DM1-D, DM1-W, DM2, DM2-W, IMC, GBC-A,
GBC-B
Transformer ARM6T/N1 or N2
b double primary
b double secondary winding for measurement and protection.
Short-time withstand current Ith (kA)
I1n (A) 50-100 75-150 100-200 150-300 200-400 300/600 1000/1250
Ith (kA) 16 - 20 25
t (s) 1 1
Measurement 5 A 7.5 VA - 15 VA - class 0.5 30 VA
and protection
- class 0.5
5 A 2.5 VA - 5 VA - 5P20 10 VA
- 5P20
Low Power Current Transformer (LPCT)
For units DM1-A, DM1-W
Transformer TLP 130, TLP 190
b characteristics according to IEC standard 60044-8
b large primary current range
b direct output voltage for measurement and protection
b RJ45-8 pts secondary connector
b insulation level 0.72 kV
b internal diameter 130 or 190 mm
b in SM6-36, TLP 130 can be used for 630 A, TLP 190 can be used up to 1250 A.
TLP 130 TLP 190
Minimum rated primary current 5 A 5 A
Rated extended primary current 1250 A 2500 A
Secondary output 22.5 mV @ 100 A 22.5 mV @ 100 A
Accuracy class for measurement 0.5 0.5
Accuracy class for protection 5P 5P
Accuracy limit factor 250 400
Rated short time thermal current 25 kA 1 s 40 kA 1 s
Highest voltage (Um) 0.72 kV 0.72 kV
Rated power-frequency withstand 3 kV 3 kV
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