Circuit Breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by overload or short circuit. Its basic function is to detect a fault condition and, by interrupting continuity, to immediately discontinue electrical flow.
Vacuum circuit breaker working principle and other circuit breaker is arcing medium of compared to differ, vacuum does not exist the conductive medium, make arc quickly put out, so the breaker action contacts the spacing between very little.
Vacuum breakers are devices designed to prevent back siphonage by restoring a more standard pressure to the system or cutting off a backward-flowing current.
The article comes from Indoor Vacuum Circuit Breaker.
1 . Remove anything currently attached to the faucet where you want to hook up the vacuum circuit breaker. Most fixtures, such as garden hoses, will be connected to the faucet by means of a coupling. Turn counterclockwise to remove.
2 . Clean off the threads on the faucet with a scouring pad and soapy water. Dry thoroughly.
3 . Wrap plumber’s tape around the threads on the faucet. Pull tightly as you wrap the tape and trim off any excess.
4 . Screw the vacuum circuit breaker onto the end of the threads clockwise.
5 . Connect any fixtures to the vacuum circuit breaker. Secure by turning clockwise. high voltage Vacuum Circuit Breaker Supplier

1. Refused to check the contents of the Vacuum Circuit Breaker closing

(1) Check the secondary control loop and the auxiliary contact is intact, if failure would result in closing the command can not be issued.

(2) Check the power switch, including power, operating power, electrical power linkage is normal.

(3) Check the operating mechanism. For the electromagnetic actuator, refused to operate the power switch due to a DC voltage is not normal, does not guarantee adequate output power, agency itself has changed position, moving parts are jam, wear linked to unsound institutions, organizations and other foreign matter into . Hydraulic actuator closing the main reason for refusal and low pressure pump start is not normal, in the case of hydraulic system problems, it generally takes to switch outage schedule for processing applications. For the spring mechanism refused to closing because the spring is not largely due to energy storage.

(4) Check the closing gate coil is good, such as closing and closing contactor coil burn improper adjustment will not result in the absorption core.

(5) chain condition switch checks according to their chain of conditions are met, such as determining the isolation switch connected to the correct division and location, etc., as well as SF6 gas pressure and moisture content is normal and so on.

2. Breaker refused to check the contents of sub-gate

(1) Check the secondary control loop and auxiliary contacts are intact.

(2) Check the power trip, power operating mechanism, electrical DC power supply chain is normal.

(3) Check the operating mechanism itself is intact.

(4) Check the trip coil is good.

After the hydraulic oil hydraulic operating mechanism down, the slow sub-gate switch may cause an accident, so that contact is not easy to extinguish the arc generated by a breaker explosion. Switch breaking capacity less than or SF6 Indoor Vacuum Circuit Breaker SF6 gas pressure is low or poor quality, they will not easily extinguish the arc caused the accident. Operating mechanism failure, will result in sub-phase circuit breaker, closing the accident.

To prevent breaker accident, should be placed on existing high-voltage switch equipment safe operation, improve the quality of maintenance, repair quality and prevent accidents caused by bad circuit breaker. After the circuit breaker operating mechanism should be sub-maintenance, low operating voltage of the test switch, and shall meet the requirements, the locking device should be reliable, the hydraulic operating mechanism to make the hydraulic pressure to meet the conditions, the preventive test should be qualified. According to the maximum possible system operation mode, annually accounting for short-circuit capacity of Embedded Pole circuit breaker installation locations, and take measures to prevent the breaking capacity of not cry and Han burning or explosion. Systematically used in a long time, security is not assured of insufficient breaking capacity circuit breakers and Vacuum Circuit Breaker Handcart replacement. For SF6 circuit breakers, SF6 circuit breakers should be accumulated operation and maintenance of equipment and test-technology experience, strengthen the supervision of SF6 gas, SF6 gas pressure run-time attention to prevent accidents.