Handling switch use precautions

Handling switch use precautions

The deviation switch Gu Mingsi is the belt anti-bias protection device, which is one of the essentials in the belt conveyor protection device. Many friends often ignore a lot of details when using the deviation switch, which leads to some troubles in the process of use. In fact, many faults can be avoided, as long as we pay attention to some problems in the process of using. So, what problems do we need to pay attention to when using the deviation switch? Let us introduce you in detail:

Handling switch use precautions

In the event of power failure, the possible misoperations may occur: when the circuit breaker has not been disconnected from the power supply, the isolation switch switch is first pulled, resulting in a load-isolated switch switch.

When the power is cut off, the load side isolating switch is first pulled, and when the power is turned on, the power supply side isolating switch is first used to reduce the accident range when the wrong operation occurs, and to avoid artificially expanding the accident.

When the power is transmitted, if the circuit breaker is mistakenly in the closing position, the deviation switch will be connected to the isolating switch. At this time, if the load side isolating switch is first combined, the rear side power supply side isolating switch is equal to the power side isolation switch with load power transmission. In the event of an arc short circuit, the busbar is faulty, which artificially expands the scope of the accident. Such as the first power supply side isolation switch. The rear load side isolating switch is equal to the load side power supply with the load side isolating switch. When an arc short circuit occurs, the circuit breaker protection action trips, and the deviation switch removes the fault and reduces the scope of the accident. Therefore, the power supply side isolating switch is first connected when power is supplied.

It should be noted that the deviation switch is used to pull the isolation switch switch when the circuit breaker switch has not been disconnected from the power supply. If the power supply side isolating switch is first pulled, the arc short circuit point is inside the circuit breaker, and the deviation switch will cause the busbar to be short-circuited. However, when the load side isolation switch is first inserted, the arc short circuit point is outside the circuit breaker, and the circuit breaker switch protection action trips. The fault is removed and the scope of the accident is reduced. Therefore, the power-side isolation switch should be pulled first.

The above is the problem that we should pay attention to when using the deviation switch. In the strict sense, the use of the deviation switch is not a high-tech work, but it must be used well. Some details, I believe that after you understand the above-mentioned precautions for everyone, everyone will be more comfortable when using the deviation switch.