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HEYI Electrical CO.,LTD

Contact person: Bethy

Position: Sales Manager

Tel: 86-577-62659558

Fax: 86-577-61712987

Mobile: 86-13968747975


Skype: bethycai

ADD: #21 ShangYou North 

Road, HuangHua LiuShi YueQing,

Zhe Jiang, CHINA


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 LZZBJ12-10/150b/2s current transformer

Description and meaning of model

The current transformer for epoxy resin casting the pillar structure of the fully closed.The use of advanced materials and processes,suitable for indoor AC 50-60Hz,Rated voltage of 10kV and below the power system for the current use of energy measurment and relay protection.

This product is the latest generation of high precision and high dynamic thermal stability,high-capacity product.Secondary winding of the number of 2-3,according to the different needs of any combination,applies KYN28A-12(GZS1)-type high-voltage withdrawable switchgear cabinet and other mid-cabinet.

Characteristic of structure

The current transformer is the pillar structure,the use of epoxy pouring full-closed,resistant to pollution and humidity,but also suitable for tropical regions.The transformer does not require special maintenance,just on a regular basis to remove surface dirt.Completely closed due to current transformer with epoxy resin casting.Small size,Suitable for any location,and installed in any direction.

Technical Data

1.Rated insulation level 12/42/75kV(surface condensation and artificial class II filthy conditions)

2.the load power factor 0.8lag

3.Rated secondary current of 5A

4.product standard:GB1208 the

5.Safety factor:FS<10

6.Surface creepage distance:to meet the gradeII pollution class requirements

7.Other parameters see table below

Technical parameters of double windings and double ratios

Type LZZB12-10/150b/2s(two winding) LZZB12-10/150b/2s(three winding)
Accuracy class Rated secondary output 1 second heat current Dynamic current Accuracy class Rated secondary output 1 second heat current Dynamic current
0.2 0.5 10P10 0.2 0.5 10P10



10 15 15 100Iln 250Iln 0.2/0.5/10P10 ,0.5/0.5/10P10 10 10 10 100Iln 250Iln
300 31.5 40 31.5 80
400 45 112.5 45 112.5
600 63 130 15 15 15 63 130
800 80 160 80 160
1200 100 160 100 160


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