Power transformer

Power transformer is a static electrical equipment, used to make a certain value of the AC voltage (current) into the same frequency of another or several different values of the voltage (current) of the device.

Oil-immersed transformers:

 1000kVA and above oil-immersed transformers, to be installed outdoor signal thermometer, and can then access the remote signal.800kVA and above oil-immersed transformers should be fitted with gas relays and pressure protection devices.

Technical data:

1、usage frequency：50 / 60HZ ；

2、No-load current：< 4 % ；

3、Compressive strength：2000V / min；test instrument：YZ1802（20mA) ；

4、Insulation class: F grade (special grade can be customized);

5、Insulation resistance: ≥ 2M ohm test equipment: ZC25B a 4 megger <1000V）；

6、connection：Y/Y 、△/Y0 、Yo/△，Autocoupler (optional);

7、The coil allows temperature rise：I00K；

8、Cooling mode：Natural air cooling or temperature control automatic cooling；

9、Noise：≤30dB