Product descriptionThe relay is designed to protect oil-filled transformers, autotransformers and reactors with expander against damages inside the tank that cause gas emission, drop in oil level or oil flow from the tank to the expander
The main parts of the relay are the housing and the actuator. The actuator uses two floats and a damper. The floats are responsible for signalling a build up of gas and a drop in the oil level in the relay to the alarm level. The slide valve is an indicator of the oil flow rate through the relay. If the shutter changes its position, it means that the oil flow rate has exceeded the relay trip threshold.
The relay is equipped with a switching system – “dry” contacts
- Oil flow rate setting: 0.65; 0.9; 1.2; 1.5; 2.0; 2.5; 3.0 m/s
- DC/ac voltage: 250 V
- Current to be switched, max: 2,5 А
8 housing variants