Dalan Motor shares the secrets of the determination of the burning of the hydraulic oil pump motor, an article is enough!

When the hydraulic oil pump motor malfunctions, we can judge the cause of the malfunction in a timely manner and deal with it accordingly, which is an important task to prevent the malfunction from expanding and to ensure the normal operation of the equipment. Today, Dalan Motor Editor will take you to find the root cause of motor failure.

1. Reasons for lack of phase:

Generally, it is caused by the lack of power phase (one phase is not powered or the power supply voltage is insufficient) or the contact point of the contactor in the line is not closed, the connection point of the wire is disconnected, loose or the contact position is oxidized.

Features: One or two phases (level 4) in the winding are all black, the coil is damaged and symmetrical, and there is a rule for missing phase.

2. Reasons for overload:

Generally, the motor is operated for a long time overcurrent, overheating, frequent starting or braking, and wiring errors are also caused (triangle connection into star connection).

Features: The windings all turn black, the end bands change color and become brittle or even broken. The speed will slow down and there will be a heavy hum.

3. Reasons between turns:

The enameled wire is broken due to the motor manufacturing process.

Features: The winding is partially burned out. Usually, the motor cavity is clean, and there is only one explosion point.

4. Reasons for interphase:

The interphase paper is not in place, or the interphase paper (tube) is damaged.

Features: The motor is burned between two adjacent phases.

5. Reasons for ground strike:

The distance between the coil and the end cover base is not enough.

Features: between the coil and the end cover or end cover, there are burn marks in both places.




----- Responsible Editor: Dalan Oil Pump Motor 02-Procurement Consultant

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