The LFCZ-10 current transformer is an epoxy resin cast insulation fully enclosed product, suitable for current and energy measurement and relay protection in indoor power lines and equipment with a rated frequency of 50Hz or 60Hz and a rated voltage of 10kV and below. This type of current transformer has a small volume, light weight, superior insulation performance, high precision, and high dynamic and thermal stability multiple. It is a substitute product for the old model LFC-10 (semi enclosed), with installation dimensions consistent with the old model. The product complies with the standards of IEC44-1:1996 and GB1208-1997 "Current Transformers".
Meaning of LFCZ-10 current transformer model

Structure Introduction
The LFCZ-10 current transformer is a fully enclosed structure, with the primary and secondary windings and iron core cast in epoxy resin, which is resistant to pollution and moisture.
Technical parameters of LFCZ-10 current transformer
1. Rated insulation level: 12/42/75 kV.
2. Rated frequency: 50Hz, 60Hz
3. Rated secondary current: 5A, 1A.
4. The partial discharge level meets the GB1208-1997 standard for current transformers. 5. It can manufacture high-precision current transformers of 0.2S level for measurement.
6. The rated primary current, accuracy level combination, rated output, and rated dynamic and thermal stability current are shown in the table.
| model |
Rated primary current (A) |
accuracy level combination |
Rated output (VA) |
Short time thermal stability current (/S) |
Rated dynamic stable current |
| 0.2s |
zero point two |
zero point five |
10p10 |
| LFCZ-10 |
5-100 |
0.2S/0.2S
0.2/10P10
0.5/10P10
10P10/10P10 |
ten |
ten |
fifteen |
fifteen |
90 I1n |
225 I1n |
| one hundred and fifty |
| two hundred |
75 I1n |
185 I1n |
| three hundred |
| four hundred |
| LFCZ-10Q |
5-20 |
0.2S/0.2S
0.2/10P10
0.5/10P10
10P10/10P10 |
ten |
ten |
fifteen |
fifteen |
90 I1n |
225 I1n |
| 30,40 |
three point five |
eight point seven five |
| fifty |
seven |
seventeen point five |
| 75,100 |
ten point five |
twenty-six |
| one hundred and fifty |
fourteen |
thirty-five |
| two hundred |
twenty-one |
fifty-two |
| three hundred |
thirty-one point five |
seventy-eight |
| four hundred |
forty-seven |
one hundred and eighteen |
LFCZ-10 type current transformer