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Instrument Transformer :
   Combined Transformer (metering Out Fir, Metering unit)
  Air insulated metering out fit (Metering unit)

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RATINGS & SPEC.
TYPE JWN-93-4 JWM-93-5
Number of phase & wires 3P3W (2Elements)
Highest system voltage   KV 17.5 36
Rated power frequency withstand voltage   KV 38 70
Basic impulse level (1.2 x 50§Á)   KV 95 170
 Rated frequency   Hz 60
Polarity Subtractive
Estimative weight   kg 800 850
Standard applied IEC 60044-1, 2

 Voltage Transformer
Rated primary voltage   KV 13.8 33
Rated secondary voltage   V 110 110
Rated secondary burden   VA 2 x 200 2 x 200
Rated voltage factor   Vn 1.2Continuous/1.5-30Sec 1.2Continuous/1.5-30Sec
Accuracy class 1.0 1.0

 Current transformer
Rated primary current   A 10-5 = 200-100
Rated secondary voltage  A 5
Rated secondary burden   VA 2 x 15
Rated continuous thermal current Ith 8.8kA, 1s
Rated short time thermal current Idyn 22kA Peak
Accuracy class 0.5
Note : Other special rating & construction are on request.


    
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1304, Kumkwang Benesta,1149-2, Jung-Dong, Wonmi-Gu,
Bucheon-city, Gyeonggi-do 420-020, KOREA