What is the reason why cold storage often trips?

The cold storage is tripped.

Cause of failure: 1. Tripping caused by high and low voltage protection.

2. Tripping caused by overload protection.

3. Tripping caused by overvoltage and undervoltage.

4. Tripping caused by poor contact of the relay.

The common cold storage faults in maintenance are: cold storage shaft seal oil leakage, cold storage shaft seal leakage, cold storage compressor stuck, replacement of cold storage compressor and motor, cold storage compressor start without oil pressure, oil pressure pressure controller makes the compressor.

Stop after starting, the oil pressure in the cold storage is too low, the oil pressure in the cold storage drops quickly, the oil pressure in the cold storage is too high, the oil temperature in the cold storage is too high, the motor in the cold storage is overheated, and the refrigerant in the cold storage.

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Cold storage trips frequently can be caused by a variety of reasons, including the following:1Refrigeration equipment overload:

The load of the cold storage refrigeration equipment is too large, which exceeds the carrying capacity of the equipment, resulting in equipment trip protection. This can be caused by the failure of refrigeration equipment, insufficient cooling capacity, excessive ambient temperature, etc. 2.

Circuit failure: The cold storage circuit has problems such as short circuit, poor contact, and aging wires, which leads to equipment tripping. This may be caused by unreasonable circuit design, aging electrical equipment, corrosion of harmful substances, etc.

3.Unstable voltage: When the grid voltage fluctuation and voltage instability of the power grid where the cold storage is located, the refrigeration equipment may trip frequently for protection.

This can be caused by grid voltage fluctuations, grid load imbalance, etc. 4.Refrigeration system lines are blocked:

The pipeline of the cold storage refrigeration system has problems such as blockage and fluorine leakage, resulting in insufficient refrigeration capacity and overload of refrigeration equipment, which causes equipment trip protection. In view of the problem of frequent tripping of cold storage, it is necessary to conduct a leaky sail analysis according to the specific situation, and it may be necessary to carry out equipment repair or replacement, circuit repair or transformation, power grid upgrade or transformation and other measures to solve the problem. It is recommended to contact a professional cold storage maintenance company or power company in time for maintenance and hail repair and commissioning.

At the same time, attention should also be paid to regular maintenance and maintenance of cold storage equipment to prolong the service life of the equipment and ensure the normal operation of the equipment.

Cold storage tripping is 1, overload, when overloaded, you can reduce the electrical load, or stagger the power consumption time of high-power equipment.

2. Leakage, leakage is not easy to check, when there is no special equipment, you can only try one by one, to see which equipment to use when you love to trip, and there is also the aging of the line will also trip.

3. When there is a short circuit, it will trip immediately, and 4. The defrosting circuit will leak. Remove the omission and give it a try.

5. Control the switch, use the universal meter to measure the line of the cold storage, if there is no short circuit or leakage of the line, it is an instantaneous current that is too large, change it, control the switch.

6. Trip when the power is on, check the control box.

7. If the compressor trips instantaneously when it starts, check the internal fan and the external unit. If the internal fan is easy to check, see if the inner fan is rotated, and the external fan.

8. Energized parts: heat dissipation rental trade fan, compressor, solenoid valve, check it yourself.

There is a problem in the refrigeration system of the cold storage, the refrigeration pipeline is blocked, resulting in the high pressure is too high, and the compressor motor trips due to overload protection; The internal phase failure of the refrigeration compressor motor or the lack of phase of the power supply will cause the motor to be out of phase protection, and the starting switch will trip and the travel wheel; There is a problem with the protection device, such as overcurrent protection.

Whether the setting of the current value and the setting of the relative delay time of the motor start is at the normal value, the AC contactor.

If the contact is poor or open, it cannot be continuously started in a short time when there is a refrigeration system, because when the pressure on the high and low voltage side of the refrigeration system does not reach a relative balance, the motor overload or overcurrent protection device action caused by starting the cold storage refrigeration.

When encountering the problem of tripping the refrigeration system in the cold storage after running for a period of time, it can be dealt with as follows: Detect whether the high-pressure pipe of the refrigeration system is deflated and whether the filter drier is blocked. If problems are found, they should be dealt with in a timely manner; with a multimeter.

Measure whether the windings of the compressor motor are internally out of phase, and replace the motor if so; with a voltmeter.

Whether the side power supply is out of phase, it is necessary to confirm that there is no problem with the electrical distribution; Check whether the compressor motor protection device is normal, confirm that there is no problem with the protection device, and replace it if the town finds that there are problematic parts. Doing these three things can eliminate tripping.

Frequent tripping is definitely not because the compressor is faulty, such as the press has a problem with the shape of the luggage, it will not be able to send power. It may be that the empty opening difference rents the forest has been running at full load for a long time, and the overheating protection mechanism has changed, and replacing the new air switch with a slightly larger capacity will solve the problem.

There is a possibility of leakage or poor contact.

It is advisable to conduct a comprehensive inspection immediately to avoid the occurrence of Yutong accidents.

Safety first, pre-erect anti-sedan car.

See if it's overloaded.

Summary. Hello, there are roughly three reasons why the cold storage refrigeration system trips after running for a period of time: There are problems in the cold storage refrigeration system, the refrigeration pipeline is blocked, resulting in high pressure and high pressure, and the compressor motor trips due to overload protection; The internal phase failure of the refrigeration compressor motor or the lack of phase of the power supply will cause the motor phase failure protection starting switch to trip; There are problems with the protection device, such as the setting of the overcurrent protection current value and the setting of the relative delay time of the motor starting at the normal value, the contact of the AC contactor is poor or open, and it cannot be continuously started in a short time when there is a refrigeration system, because the pressure on the high and low voltage side of the refrigeration system does not reach a relative balance, and the refrigeration of the starting cold storage causes the motor to overload or the overcurrent protection device to act.

Hello, there are roughly three reasons why the cold storage refrigeration system trips after running for a period of time: There are problems in the cold storage refrigeration system, and the cold pipeline is blocked, resulting in high pressure and high pressure, and the compressor motor trips due to overload protection; The internal phase failure of the refrigeration compressor motor or the lack of phase of the power supply will cause the motor phase failure protection starting switch to trip; There is a problem with the protection device, such as the setting of the overcurrent protection current value and the setting of the relative delay time of the motor starting at the normal value, the AC contactor contact is not in good contact or open circuit, and it is not possible to start continuously in a short period of time when there is a refrigeration system, because the pressure on the low voltage side of the high beam of the refrigeration system does not reach a relative balance, and the motor overload or overcurrent protection device action caused by starting the cold storage refrigeration.

The cold storage compressor is indoors.

When encountering the problem of tripping the refrigeration system in the cold storage after running for a period of time, it can be dealt with as follows: Detect whether the high-pressure pipeline of the refrigeration system is deflated, and whether the filter drier is blocked. If problems are found, they should be dealt with in a timely manner; Use a multimeter to measure whether the windings of the compressor motor have internal phase failure, and replace the motor if so; Use the voltmeter side to measure whether the power supply is out of phase, and confirm that there is no problem with the electrical dispatch; To detect whether the compressor motor protection device is normal, it is necessary to confirm that the protection device does not have a bridge problem, and if there is a problem part, replace the code.

Doing these three things can eliminate tripping.

Hello, dear, thank you for your patience, the answer has been found for you, you check it, thank you!