The spring operating mechanism with motor is currently the most commonly used during the operation. When it is used, the closing and opening of the spring is to rely on its spring to provide energy. The spring of the motor is used to trip the brake. The coil only provides energy to pull out the spring's positioning detent, so the trip-closing current is generally not large.
The spring operating mechanism with motor can effectively store the energy of the spring of the energy storage motor compaction spring. During the operation process, the closing bus and the elastic operation can effectively supply power to the energy storage motor, and the current during use is not Big, so the difference between mother and mother is not too big. Protection cooperates with it, generally there is nothing special that needs attention.
The trip spring and the closing spring in the motor for the spring operating mechanism are independent to a certain extent. In use, the energy storage thereof generally only stores the energy of the closing spring, and the tripping spring in the course of operation is generally depended on the open circuit thereof. The device closes the action and stores energy. A switch energy storage contact is connected in series in the closing circuit, that is to say the switch cannot be switched on without energy storage. However, there are no switches in the tripping circuit that have no stored energy storage contacts. So even if the switch does not store energy, you can also jump off.
When the spring operating mechanism with motor is disconnected from the circuit breaker, its opening spring does not store energy, and the closing spring has stored energy. When the brake is closed, the closing spring releases energy and closes the spring to store energy at the same time. To ensure that the switch can be opened when closed. When the closing spring releases energy, the motor starts to store energy in the closing spring. This takes about ten seconds. Even if it is closed to the fault, the opening spring can be tripped because it has stored energy.
This also shows that when the hand is closed to the fault, the switch can immediately jump off, but this kind of jump cannot be re-coincided immediately after the switch-off, because the switch has not yet stored energy, and it is necessary to wait until the energy storage is over before it can send power again. If the switch is originally closed, both the closing spring and the opening spring of the switch have stored energy.
When the motor of the spring operating mechanism is faulty, the opening spring releases the energy to open the brake. After about 1 second, the closing spring releases energy and closes. At the end of closing, the sub-gate spring has stored energy, but the closing spring has not yet stored energy. If this time closes to a fault, the switch springs off immediately because the trip spring ends up storing energy. But after the jump, you can't close it again immediately. You need to wait until the closing spring energy storage is over.