Outdoor Vacuum Circuit Breaker

A: Yes, it is! Our products can be Customized. We have design and engineer teams,we can customize products according to customers' drawing or requirements.

A: It depends your order quantity and it normally takes about 15-20 days.

A: While generally low maintenance, periodic inspections are recommended to check for any signs of damage, leaks, or degradation of the vacuum interrupter.
What are the potential drawbacks of OVCBs?

A: Within one year from the sale date, if there are any accessory problems, you just provide the photos of damaged accessory, then we will provide free accessory. According to the number of products, we will provide easily damaged accessories for free. We also can provide technical support if you need.

A: The basic structure of an outdoor vacuum circuit breaker includes moving and static contacts, pull rods, arc extinguishing chambers, etc. Its moving and static contacts can be closed and disconnected under load in a sealed high vacuum arc extinguishing chamber.

A: Outdoor vacuum circuit breakers are mainly used for breaking and closing load currents, overload currents and short-circuit currents in power distribution systems, and are suitable for places where power grids are frequently operated.

A: There are problems with the material or manufacturing process of the vacuum bubble, and there are tiny leaks.
The material or manufacturing process of the corrugated tube in the vacuum bubble is not good, and leaks appear after multiple operations.
When the split vacuum circuit breaker is operated, the operating connecting rod distance is large, which affects the switch characteristics and speeds up the vacuum reduction.

A: The reduced vacuum will seriously affect the ability of the vacuum circuit breaker to break overcurrent, causing the service life of the circuit breaker to drop sharply, and in severe cases may cause the circuit breaker to explode.

A: When the circuit breaker is regularly shut down for maintenance, use a vacuum tester to perform a qualitative test on the vacuum bubble.
When the vacuum degree decreases, replace the vacuum bubble and perform characteristic tests such as travel, synchronization, and bounce.

A: Choose mature products produced by reputable manufacturers.
Choose vacuum circuit breakers with integrated main body and operating mechanism.
When the operating personnel patrol, pay attention to whether there is discharge on the outside of the circuit breaker vacuum bubble, and replace it in time if there is.

A: The opening operation circuit is broken.
The opening coil is broken.
The operating power supply voltage is reduced.
The resistance of the opening coil increases and the opening force decreases.
The opening top rod is deformed, and there is a jamming phenomenon when opening.

A: If the opening failure occurs during an accident, it will cause the accident to leapfrog and expand the scope of the accident.

A: Check whether the opening circuit is broken.
Check whether the opening coil is broken.
Measure whether the resistance value of the opening coil is qualified.
Check whether the opening top rod is deformed.
Check whether the operating voltage is normal.

A: The improper installation position of the travel switch causes the energy storage motor to be powered off early or delayed.
The travel switch is damaged and the energy storage motor cannot stop running.

A: If the closing energy storage is not in place, if an accident occurs in the line and the circuit breaker refuses to open, it will cause the accident to leapfrog and expand the scope of the accident. If the energy storage motor is damaged, the vacuum switch cannot achieve opening and closing.

A: Adjust the position of the travel switch to achieve accurate power off of the motor.
If the travel switch is damaged, replace it in time.

A: The mechanical properties of the circuit breaker body are poor, and after multiple operations, the different periods and large bounce values ​​are caused.
The operating rod distance of the split circuit breaker is large, and there is a deviation between the phases when the opening force is transmitted to the contact.

A: If the periods are different or the bounce is large, it will seriously affect the ability of the vacuum circuit breaker to break overcurrent, affect the life of the circuit breaker, and in severe cases, cause the circuit breaker to explode.

A: Under the premise of ensuring the stroke and overstroke, adjust the length of the three-phase insulating pull rod to make the synchronization and bounce test data within the qualified range.
If it cannot be achieved through adjustment, replace the vacuum bubble of the phase with unqualified data and readjust it to qualified data.

A: Altitude not exceeding 2000m; the upper limit of the ambient air temperature is +40℃, and the lower limit is -40℃; the monthly average relative humidity of the ambient humidity is not more than 90%, and the daily average relative humidity is not more than 95%; the wind pressure of outdoor products does not exceed 700Pa (equivalent to a wind speed of 34m/s); the earthquake intensity does not exceed 8 degrees.