Basing on absorb and digest technology of same foreign products, meeting with the feature of our national power supply system, our YiZheng DaHeng Company spent one year in developing oiled net load switch and oiled terminal load switch specialize for box type Substation. We commission ShenYang transformer research institution(China tansformer quality inspection center)to do a full performance test with the random samples. The result is all passed at the first time.

Characteristic:

1. Configuration and dimension are compact. The fixing dimension is same with other congeneric foreign switches.
2. Low contact temp rising. Fixed and moving contacts' tested max temp. Rising do not exceed 6K when 1.2 times rated current.

3. Steady contact pressure, credible contact, small loop resistance. Clamping force and pulling force of the external down-lead will not influence the pressure of switch contact.
4. Operation will be much more convenient, and sealed configuration is very reasonable and credible.