






ransformer Vacuum Pressure Compound Gauge
Vacuum Pressure Compound Gauge is developed for tank type oil transformers, and it can directly reflect the pressure changes inside the transformers due to the oil temperature changing.
Working temperature: -40ºC~80ºC, relatively humidity: ≤80%
Measuring range: -0.04~0.04MPa, -0.08~0.08MPa
Accuracy: ±2.5%
Dial size: 70mm
Connection: 1/4N --18NPT
Pressure safety valves
1. Pressure release valve is generally applicable to oil-immersed fully sealed transformers, amorphous converters, American box transformers, on-load voltage regulating switches, high voltage switches, capacitors, etc., installed on the oil tank cover or the side wall of transformers.2. For screw-connected products, please see the installation size for the hole size on the transformer box cover.
3. Each product is equipped with a safety helmet, but it is only convenient for users to use in the transformer sealing experiment all day, and it must be removed before operation.
Working conditions:
1. Working environment temperature: -40ºC~50ºC
2. Relative humidity: when the air temperature is 25°C, the humidity is not more than 90%
3. Switch performance: normally open; maximum power 10W; maximum voltage DC 100V; maximum current 0.5A; maximum breakdown voltage DC 150V.
4. There is no violent vibration and magnetic field in the installation position
5. The oil level gauge should be installed vertically




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