What s going on with the tower crane hook tripping, what s going on with the tower crane always trip

You take a look at the cab or tower crane above the distribution box of the tripper cable grounding wire is not on the electrical box, there are workers welders can not use a distribution box with your tower crane, so that the voltage is unstable will also trip, the cable aging rain in the damp water, will also trip, in is the hook contactor problem, I understand so much, I hope to help you.

Summary. Hello, the reason why the upper and lower hooks of the tower crane always trip is that the air switch is old and out of order, the second may be the mechanical failure of the upper and lower hooks, the motor load is too large (for example, the bearing is broken), and the third may be the fault cause of the line damage and short circuit tower crane often trips when working The solution to the tower crane often trips when working 1, the leakage shield malfunction solution: review the leakage maintainer 2, the line short circuit, grounding solution:

Check the line and repair it (from: Electrical Technology Home) 3. The working power supply voltage is too low or the voltage drop is large Solution: Measure the voltage, suspend the work, I hope my help can help you.

What is the matter with the tower crane always tripping when the hook is up.

The tower crane control box does not trip, and the old jumps the main gate of the first box.

Hello dear, the reason why the upper and lower hooks of the tower crane always trip may be the old and malfunctioning of the air switch, the second may be the mechanical failure of the upper and lower hooks, the motor load is too large (for example, the bearing is broken), the third may be the fault cause of the line damage and short circuit, the tower crane often trips when working The solution to the tower crane often trips when it is working 1, the leakage shield malfunction solution: review the leakage maintainer 2, the line short circuit, grounding solution: Check the line, repair (from:

3. The solution to the low voltage or large voltage drop of the working power supply: Measure the voltage, suspend the work, I hope my can help you.

The lifting speed does not jump, and the switch to the second speed jumps the main switch.

The tower crane is a working mechanism with a frequency converter. When the inverter is working, it will produce a high harmonic leakage current. If there is no high-order harmonic countermeasure strategy, it will trip frequently.

And it's basically a box skip. Because it is the farthest away from the primary container. The reason for the longest cable used, of course, is also the factor of confluence.

The solution is to replace the leakage with the higher harmonic countermeasure strategy. Buy ABB. After using it, it basically doesn't jump.

You can try, of course, you can also change the ordinary leakage protection with a slightly larger leakage current, such as 300mA.

Summary. The cause of tripping may be the old and malfunctioning air switch, the second may be the mechanical failure of the upper and lower hooks, the motor is overloaded (for example, the bearing is broken), and the third may be the line is damaged and short-circuited.

The cause of tripping may be the old and malfunctioning air switch, the second may be the mechanical failure of the upper and lower hooks, the motor is overloaded (for example, the bearing is broken), and the third may be the line is damaged and short-circuited.

The reason for tripping may be the old and malfunctioning air switch, the second may be the mechanical failure of the upper and lower hooks, the motor load is too large (for example, the bearing is broken), and the third may be the fault of the line and the leakage of a short circuit.

The tower crane trips as soon as the upper and lower hooks move, what's going on? 1. If there is no immediate tripping, it means that there is no short circuit in the circuit; 2. It takes seven or eight minutes to trip, which means that it is not the starting process of the high-power motor; 3. There is no mention of other fault phenomena, such as arc light, abnormal noise, peculiar smell, etc., indicating that the circuit circuit and various equipment are normal; 4. If the leakage switch is used and does not trip immediately, it means that there is no leakage or grounding. According to this analysis, 1. If it is a newly installed empty opening, the capacity is smaller; 2. If it is an old circuit, it may be an empty opening aging, or a new load has been added; 3. In the past, the full load was not started, and the capacity of the empty opening was not exceeded, and it could be used normally, but now the full load is started, and the adjustable load has reached the maximum, which exceeds the capacity of the empty opening.

1. If the main contactor is jumped, it means that the control loop is faulty. 2. It is a jump switch, check the motor insulation and line insulation. Contactor tripping means that the circuit current exceeds the rated current of the contactor.

Confirm that the current of the equipment is normal, that is, the contactor is small and large. Check the condition of the equipment and whether it is overloaded. Check whether the insulation of the equipment line is damaged, causing a short circuit or leakage.

Check whether the relay contacts are aged and replace them in time.

The tower crane is always tripping on the hook, what is going on, hello! Through your simple sentence, I will try to analyze: 1. There is no immediate tripping, indicating that there is no short circuit in the circuit; 2. It takes seven or eight minutes to trip, which means that it is not the starting process of the high-power motor; 3. There is no mention of other fault phenomena, such as arc light, abnormal noise, peculiar smell, etc., indicating that the circuit circuit and various equipment are normal; 4. If the leakage switch is used and does not trip immediately, it means that there is no leakage or grounding.

According to this analysis, 1. If it is a newly installed empty opening, the capacity is smaller; 2. If it is an old circuit, it may be an empty opening aging, or a new load has been added; 3. In the past, the full load was not started, and the capacity of the empty opening was not exceeded, and it could be used normally, but now the full load is started, and the adjustable load has reached the maximum, which exceeds the capacity of the empty opening. Hope it helps!

Summary. Hello dear, there may be a variety of reasons for tower crane tripping, the following are some common reasons: 1. Overload:

When the tower crane exceeds its rated load capacity, the protection device in the circuit senses the overload condition and automatically trips to protect electrical equipment and personal safety. 2. Short circuit: The short circuit fault in the circuit will cause a sudden increase in the current and trigger the protection device to trip.

3. Overvoltage or undervoltage: During the power supply process of the power grid, if the voltage exceeds or falls below the rated voltage range of the equipment, the protection device will trigger a trip to protect the equipment. 4. Floor leakage current:

When the electrical equipment or cable of the tower crane leaks, the current will pass through the grounding to cause the ground leakage current, and when the leakage current exceeds the set value, the protection device will trip. 5. Equipment failure: There may be faults in the tower crane electrical equipment itself, such as circuit breakers, contactors, etc., which can cause tripping.

6. External factors: external factors, such as lightning strikes, power interruptions, etc., may also cause the tower crane to trip.

Dear, there may be a variety of reasons for tower crane tripping, the following are some common reasons: 1. Overload: The tower crane exceeds its rated load capacity, and the protection device in the circuit will sense the overload situation and automatically trip to protect electrical equipment and personal safety.

2. Short circuit: The short-circuit fault in the electric book slag Shenlu Liang Qiao will cause a sudden increase in current and trigger the protection device to trip. 3. Overvoltage or undervoltage:

During the power supply of the grid, if the voltage exceeds or falls below the rated voltage range of the equipment, the protective device will trigger a trip to protect the equipment. 4. Ground leakage current: When the electrical equipment or cable of the tower crane leaks, the current will cause the ground leakage current through the grounding, and when the ground leakage current exceeds the set value, the protection device will trip.

5. Equipment failure: There may be faults in the tower crane electrical equipment itself, such as circuit breakers, contactors, etc., which can cause tripping. 6. External factors:

External factors, such as lightning strikes, power outages, etc., may also cause the tower crane to trip.

What is the problem of tower crane lifting and lowering high speed on tripping.

The tower crane tripping when lifting and lowering high speed may be one of the following common problems: 1. Overload protection: lifting and lowering speed is too fast, resulting in excessive motor load, exceeding the rated load capacity of the tower crane, triggering the overload protection device, resulting in tripping.

In this case, you can try to reduce the speed of lifting and lowering to ensure that you operate within the load range of the tower crane. 2. Power supply voltage problem: when lifting and lowering high speed, the power supply voltage may be unstable or exceed the rated voltage range of the tower crane, triggering the under-voltage or over-voltage protection device, resulting in tripping.

You can check if the supply voltage is stable, or use a voltage regulator device to ensure a stable power supply**. 3. Electrical system failure: When lifting and lowering high speed, there may be faults in the electrical system, such as motors, controllers, cables, etc., which are damaged or in poor contact, resulting in tripping.

In this case, faulty parts of the electrical system need to be inspected and repaired. 4. Control system problems: When lifting and lowering high speeds, there may be problems in the control system, such as sensor failure, controller program error, etc., resulting in tripping.

The control system can be inspected and debugged to ensure that it is working properly.

The tower crane hooks and shifts the lower groove whether it is a leakage switch or a main contactor.

If the leakage switch is tripped, it is caused by the leakage switch being too small or damaged.

If it is a skipping main contactor, it means that the control loop is faulty, check whether the wiring of the control loop is correct, and whether it is short-circuited and grounded.

Please refer to the schematic diagram for maintenance.