Sasun Electrical - Leader in the high voltage electrical products industry.

LZW-24 Current Transformer

The supporting-type current instrument transformers LZW-24 are fully enclosed and cast in epoxy resin.The transformers are designed for electric power systems of rated frequency 50Hz/60Hz and rated voltage of 35kV. They are used for o utdoor mounting.The performances of the products meet standards IEC60044-1 and GB1208-2006. The products are applied to metering electric energy,voltage controlling and relay protection.

Inquiry

Write a Review

model

Current instrument transformer

technical specification

1. Rated insulation level: 24/65/125 kV;

2. Ambient temperature:-45℃~40℃;

3. Pollution class:IV;

4. Using imported outdoor epoxy resin for casting;

5. Rated frequency: 50Hz or 60Hz;

6. Rated secondary winding current:5A or 1A;

7. We can make high precision current transformers of 0.2S or 0.5S for measuring

Structure feature

1. Cores and windings are cast together in epoxy resin.

2. The transformer cores are manufactured of high-grade magnetic material.

3. The transformer is fixed to the base plate by four screws.

4. The bolted earthed clamp is located on the transformer base plate.

5. The secondary terminals are covered with a protective cover.

6. As the high level of insulation,it can work normally in damp and Pollution II condition.

7. The cores and windings are cast together.

8. Three optional ways of installation,correspondent to product version of A/B/C.

9. The outlet terminals of theprimary winding and secondary winding, are respectively marked as P1,P2 and S1,S2.

10. The case that, primary current runs from P1 to P2 and secondary current flows from S1 to S2 through external circuit, is called subtractive polarity. The secondary circuit should not be open, when primary current is flowing. Otherwise,a high voltage will be generated.

11. The transformers are equipped with primary winding and secondary windings.The windings are fixed to the iron core bar by casting,

12. For the two secondary windings,the first one is for either measuring or protecion purposes; the other is for being connected into an open-delta connection in a three-phase system.

13. The outlet of the primary winding is insulated from the earth to a correspondent level.

14. The secondary terminal board is covered with a transparent cover made of plastic.

Technical specification

Rated voltage	Rated current ratio	Class combination	Accuracy class and rated output(VA)				Rated 1 sec, short-time thermal current	Limit output (VA)	Rated insulation level(kV)
			0.2	0.2S	0.5	5P15
24	50-75/5	0.2/0.5 0.2/5P15 0.5/5P15 0.5/5P15	20 or 30	10 or 15	30 or 40	30 or 40	8.4	21	43
	100-200/5						150	375
	300-600/5						100	250
	800-1000/5						100	250
	1250-1500/5				40 or 50	40 or 50	140	350
	2000/5						240	600

Outline dimension

未标题-2 (4)

Drop us a line or just say Hello!

Just leave your email or phone number in the contact form so we can send you a free quote for our wide range of products!