Ball Valve With Pneumatic Actuator, Pneumatic Actuated Ball Valve, Pneumatic Operated Ball Valve
Pneumatic Ball Valve is used to control the flow of a media, liquid or gas, by means of a rotating ball with a bore. The rotating ball is controlled by a pneumatic actuator that is capable of turning it. A ball valve is one of the most common valves due to their simple operation, reliability, long service life, and wide range of application uses. Ball Valve With Pneumatic Actuator, Pneumatic Actuated Ball Valve, Pneumatic Operated Ball Valve NINGBO BRANDO HARDWARE CO.,LTD , https://www.brandopneumatic.com
1, the temperature test: Transformer operation is not normal, the level of temperature is very important. The regulations stipulate that the upper oil temperature must not exceed 85 degrees (ie, the temperature rises by 55 degrees). General transformers are equipped with a dedicated temperature measurement device.
2. Load measurement: In order to increase the utilization ratio of the transformer and reduce the loss of electric energy, it is necessary to determine the power supply capacity that the transformer can really bear during the operation of the transformer. The measurement work is usually performed during the season when the electricity consumption is highest, and it is measured directly with a clamp ammeter. The current value should be 70% to 80% of the rated current of the transformer. If it exceeds the overload, it should be adjusted immediately.
3, voltage measurement: Regulation requirements voltage range should be within 5% of the rated voltage of soil. If this range is exceeded, taps should be used to adjust the voltage to the specified range. The voltmeter is generally used to measure the secondary winding terminal voltage and the end user's terminal voltage.
4, insulation resistance measurement: In order to make the transformer is always in normal operation, insulation resistance must be measured to prevent insulation aging and the Secretary to do the accident. When measuring, it is necessary to try to stop the transformer. Measure the insulation resistance of the transformer with a shake meter, and the measured resistance is not lower than 70% of the previously measured value.
2 way pneumatic ball valves have 2 ports, an inlet and an outlet. The media flows from one direction to the other and the valve is used to open or close the flow. A 2-way ball valve is commonly called a shut off valve.
3 way pneumatic ball valves have 3 ports. The bore in the ball is not straight, but rather in an L or T formation. This allows for various circuit functions (flow directions) for the valve. It can be used to distribute, mix, or divert flow in the desired direction. Therefore, any of the 3 ports can be an inlet or an outlet.
Pneumatic ball valve acccessories include ball valves with an ISO-top (suitable for a pneumatic actuator).
The test transformer is an indispensable test equipment for detecting power transformers. In order to ensure the normal operation of the transformer, the following tests should be performed frequently: