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Contact person: Bethy

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Tel: 86-577-62659558

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E-mail: heyi@heyiele.com

bethy@heyiele.com

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 LZZB10-10 current transformer

Description and meaning of model

Insulated products LZZB10-10 type current transformer is the pillar of type casting.For rated voltage of 10kV,rated frequency of 50Hz power line current,energy measurment and relay protection in use,this product  is completely closed product in the original old LQJ-10 on the basis of an improved design can completely replace LQJ-10 products,its most important feature is to overcome the old products can not do the 0.2S,0.5S,and problem,and a rated current extends to the 1000A,especially suitable for KGN1 type,single and double bus fixed type switchgear and metering cabinet.Is also applicable to other type of switchgear.

Characteristic of structure

This type of transformer core and a secondary winding is all sealed in epoxy resin cast body is fully enclosed structure.With excellent insulation properties and  moisture resistance,to overcome the LQJ-10 shortcomings.With light weight,small size,suitable for installed in any position in any direction.The base mounting bar for installation.

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 Accuracy class Rated secondary output 1 second heat current Dynamic current
0.2S 0.2 0.5S 0.5 10P10 10P10
5 0.2S/0.5,0.2S/10P,0.2/0.5,10P10/10P10,0.2S/0.5/10P10 10 10 10 10 15 15 0.45 1.12
10 0.9 2.25
15 1.35 3.3
20 1.8 4.5
30 2.7 6.75
40 3.6 9
Technical parameters of double windings and double ratios

Type Accuracy class Rated secondary output 1 second heat current Dynamic current
0.2S 0.2 0.5S 0.5 10P10 10P10
50 0.2S/0.5,0.2S/10P,0.2/0.5,10P10/10P10,0.2S/0.5/10P10 10 10 10 10 15 15 4.5 11.25
75 6.75 16.8
100 9 22.5
150 13.5 33.7
200 15 37.5
300 15 22.5 56
400 30 75
500 20 37.5 93
600 20 45 112.5
800 25 20 60 150
1000 30 30 75 187.5

Technical parameters of double windings and complex ratio

Type Accuracy class Rated secondary output 1 second heat current Dynamic current
0.2S 0.2 0.5S 0.5 10P10 10P10
10-15-20 0.2S/0.5,0.2S/10P,0.2/0.5,10P10/10P10,0.2S/0.5/10P10 10 10 10 10 15 15 1.8 4.5
15-20-30 2.7 6.75
20-30-40 3.6 9
30-40-50 4.5 11.25
40-50-75 6.75 16.8
50-75-100 9 22.5
75-100-150 13.5 33.5
100-150-200 15 37.5
150-200-300 22.5 56
200-300-400 30 75
300-400-500 37.5 93
400-500-600 15 25 45 112.5
500-600-800 30 20 60 150
600-800-1000 75 187.5

Outline dimension

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Contact Online bethycai 285611779 86-13968747975 bethy@heyiele.com