LZZW3-35Q Instrument Multi Ratio Current Transformer

multi ratio current transformer

The outdoor instrument current transformers LZZW3-35Q are fully enclosed and cast in epoxy resin. Instrument transformer is equipped with one core and coil assembly rated for measurement and protection, and then output multi ratio. The current transformers are designed for electric power systems of 50Hz/60Hz rated frequency and 35kV rated voltage. They are used for outdoor mounting. The performances of the products meet standards IEC60044-1, IEC61869-2 and ANSI/IEEE C57.13. The products are applied to metering electric energy, voltage controlling and relay protection.

 

Technical data 1: two windings

Rated primary current(A) Accuracy class combination Rated secondary output(VA) Surface creepage distance
(mm)
Weight(KG)
1S/2S 0.2(S)0.5S 0.5 5P10 5P15 5P20
10-630 0.2(S)/0.5(S)
0.2(S)/5p
0.5(S)/5p

10 20 100 60 40 1300
90
750-2000 120 75 50

Technical data 2: three windings

Rated primary current(A) Accuracy class combination Rated secondary output(VA) Surface creepage distance
(mm)
Weight(KG)
1s/2s/3s 0.2(s)0.5S 0.5 5P10 5P15 5P20
10-500 0.2(S)/0.2(S)/5P
0.2(S)/0.5(S)/5p
0.5(S)/0.5(S)5p

10 20 50 30 25 1300
90
600-1000 80 50 30
1200-2000 100 60 40
100-630 0.2(S)/5p/5p
0.5(S)/5p/5p
10 20 30 20 15
750-1000 50 30 20
1200-1600 60 30 25
2000 60 40 25

Technical data 3: four windings singls transformaiton radio

Rated primary current(A) Accuracy class combination Rated secondary output(VA) Surface creepage distance
(mm)
Weight(KG)
1s/2s/3s/4s 0.2(s)0.5s 0.5 5P10 5P15 5P20
10-800 0.2(S)/0.2(S)/5P/5P
0.2(S)/0.5(S)/5p/5P
0.5(S)/0.5(S)5p/5P

10 20 25 15 10 1300
90
1000 30 50 10
1200-2000 40 25 15

Technical data 4: three windings singls transformaiton radio

Rated primary current (A)
Accuracy
class combination
Rated secondary output(VA) Surface creepage distance (mm) Wt
(KG)
1s/2s/3s/4s 0.2(S)0.5s 0.5 5P10 5P15 5P20
10-15-20
0.2(S)/0.2(S)/5P/5P
0.2(S)/0.5(S)/5p/5P
0.5(S)/0.5(S)5p/5P
10
20 25 15 10 1300 90
15-20-30
20-30-40
30-40-50
40-50-75
50-75-100
75-100-150
100-150-200
150-200-300
200-300-400
300-400-500
400-500-600
500-600-800
600-800-1200
800-1200-1500
1200-1500-2000

Technical data 5: Idyn

Rated primary current (A)
Ith/ls (KA r.m.s.) Idyn (KA peak)
Double transformaion ratio Single transformaion ratio
10-15-20
10 2 5
15-20-30
15 3 7.5
20-30-40
20,25 4 10
30-40-50 30 6.3 15.7
40-50-75 40 9.4 23.6
50-75-100 50 12.6 31.5
75-100-150 75 15.7 39
100-150-200 100 22 55
150-200-300 150 31.5 78.7
200-300-400
200,250 47 118
300-400-500 300 63 157.5
400-500-600
400 63 157.5
500-600-800 500 80 200
600-800-1200
600-1200 80 200
800-1200-1500
1500-2000 140 200
1200-1500-2000

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