Mar 13, 2025 · The springs in a VCB act as an energy storage mechanism for the opening & closing the circuit. When the springs are gets charged, they store potential energy, which may then be released to successfully operate the breaking mechanism.

The key components of the spring-operated mechanism are the dividing spring and the closing spring, which store the mechanical work of the motor in the closing spring for a short period, and then release the closing spring energy for closing; in the process of dividing, the dividing spring stores energy and is used as the dividing power.

Jul 1, 2009 · A motor is used to charge (compress) the close spring. A hook latch keeps the spring charged after the motor stops. When the close command is given, the close coil releases the hook latch, allowing the spring to quickly force the main contacts together.

Jan 21, 2023 · The optimal design of the VCB mechanism involves two steps: the first step involves the optimal design of the stiffness of closing springs and the cam profile, based on three-order polynomial motion curve of the follower; the second step involves the optimal design of a four-bar linkage.

Highly reliable spring spring mechanism is type tested for M2 class Mechanical Endurance Le. for guaranteed 10,000 operations and extended mechanical life with minimal maintenance. Mechanism components are especially surface treated with DOHS compliant plating processes and painting to achieve longer service life

Spring Operated Driving Mechanism: This type of mechanism uses springs that provide energy to open and close the vacuum breaker. When the springs are compressed, they store energy, which is later used to operate the circuit breaker.

The Spring Operating Conventional Mechanism consists of: A spring charging unit which can be charged manually or by charging motor. Mechanical indicator showing spring charged/discharged condition. Indicator for open/close position of the circuit breaker.

VCB stands for Vacuum Circuit Breaker. In vacuum circuit breakers, the vacuum is used as the arc quenching medium. Vacuum offers the highest insulating strength. So it has far superior arc quenching properties than any other medium (oil in oil CB, SF6 in SF6 circuit breaker).

The Spring operation mechanism adopts high-precision machining and professional design, which has the characteristics of reliable operation, compact structure, small volume, smooth operation, and long service life.

Jul 12, 2020 · The working principle of vacuum circuit breaker (VCB) is the arc quenching using vacuum interrupters. The operation of VCB depends on the stored-energy mechanism using closing spring. The spring system reduces the closing operating current.