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JLSZV-12 (W) Combination Instrument Transformer

Summary 
The JLSZV-12(W) is combined voltage and current instrument transformers.
The product is used in three-phase systems of rated frequency of 50/60Hz and rated voltage of 12kV. The product is alternative to JLSJW-12 oil-immersed combination transformer.

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JLSZV-12 (W) Combination Instrument Transformer

Summary
The JLSZV-12(W) is combined voltage and current instrument transformers.The product is used in three-phase systems of rated frequency of 50/60Hz and rated voltage of 12kV. The product is alternative to JLSJW-12 oil-immersed combination transformer.

Technical specification

1. rated voltage: 3×6kV; 3 ×12kV; 3× 35kV
2. accuracy class: 0.5, 0.2, 0.5S and 0.2S
3. rated voltage ratio: 6k/100; 12k/100; 35k/100
4. rated current ratio: 1~1k/5 A (two type: single ratio and double ratio)
5. Primary wiring of double measuring tank: P1, P2 are heavy current ratio while P1, P3 are high current ratio.
6. Rated burden:
a) PT components: 15, 25 and 50 VA
b) CT components: 10, 25 and 30 VA.


Rated primary
current
Rated short-
time thermal 
current(KA
virtual value)
Rated dynamic
current
(KA peak value)
Limit output(VA)
0.2 0.2S 0.5 0.5S
1 2.5 10 15
1.5 3.75
15-30 2.4 6
20-40 3 7.5
30-60 4.5 11
40-75 8 20
50-100 9 22.5
75-150 12 30
100-200 16 40
150-300 24 60
200-400 32 80
300-600 60 100
400-800 80 100
500-1000 80 100

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