The LFJ-10, LFJ-10Q, LDJ-10, and LDJ-10Q current transformers are designed specifically for handcart style switchgear, especially suitable for KYN-10 handcart style switchgear, for current and energy measurement and relay protection.



3.1 The installation location of the transformer shall not exceed 1000 meters;
3.2 The highest ambient temperature is+40 ℃, and the lowest is -5 ℃
3.3 The relative humidity of the air shall not exceed 95 (at a temperature of 20 ℃);
3.4 No gas, steam, dust or other explosive or corrosive media that seriously affect the insulation of the transformer.
3.5 The installation site should be free from severe vibrations and bumps.

The primary terminal of LFJ-10, LFJ-10Q, LDJ-10, and LDJ-10Q current transformers is equipped with a contact box and is a fully enclosed epoxy resin casting structure.

5.1 Rated insulation level: 12/42/75KV
5.2 Rated primary current, accuracy level and corresponding rated secondary load, rated short-time current as shown in Table 1;
5.3 The power factor of the load is cos=0.8 (lag);
5.4 Rated secondary current 5A or 1A;
5.5 Accuracy level combination: 0.5/10P 0.2/10P
5.6 10P level accuracy limit coefficient: 10;
5.7 The partial discharge level shall comply with GB7354-97 and IEC44-4 "Measurement of Partial Discharge in Transformers", and the apparent discharge shall not exceed 20PC

LFJ-10, LFJ-10Q, LDJ-10, LDJ-10Q type current transformers