LZZW-17.5（24） Outdoor Current Transformer

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Locatin : Products > Instrument Transformers > MV & LV CT PT > Outdoor CT/PT

LZZW-17.5（24） Outdoor Current Transformer

LZZW-17.5（24）current transformer, outdoor epoxy resin casting insulation and fully enclosed support construction, encloses the primary & secondary windings and annular core in the epoxy resin casting body. The product has large periphery insulation creep distance, withstanding dirtiness and dampness. Be suitable for measuring electric capacity, current and protective relaying in the power system of 17.5kV (Up to 24kV).

DESCRIPTION

Main technical parameter

1. Rated voltage: 13.8 kV or 15 kV or 20 kV or 22 kV.

2. Rated secondary current:5Aor1A

3. Rated insulation level: 17.5/38/95 kV or 24/50/125 kV.

4. Standards: IEC60044-1.2003 Part 1: Instrument transformers-Part1: Current transformers

5. Other technical parameter pls see as follow:

Single ratio

Rated transformation ratio(A)	Accuracy classes combination	Rated output (VA)			Rated short-time thermal current (kA/S)	Rated dynamic current ( kA)
		Measuring		Protective
		0.2（S）	0.5	10P
30-200/5	0.2(S)/ 0.2(S) 0.2(S)/0.5 0.2(S)/10P 0.5/10P	10 15	15 20	20 25	150I1n	375I1n
300/5					31.5	80
400/5					40	100
500/5					50	100
600/5					63	130
800/5					80	160

Double ratio

Rated transformation ratio(A)	Accuracy classes combination	COS =0.8 Rated output (VA)			Rated short-time thermal current (kA/S)	Rated dynamic current ( kA)
		Measuring		Protective
		0.2（S）	0.5	10P
30-60/5	0.2(S)/ 0.2(S) 0.2(S)/0.5 0.2(S)/10P 0.5/10P	10 15	15 20	20 25	2	5
50-100/5					8	20
100-200/5					15	37.5
200-400/5					30	75
400-800/5					63	130

Remarks: Upon request we are glad to offer transformers according to other standards or with non-standard technical specs.

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