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Motor, six kinds of energy-saving programs
2016-04-21 14:58|5711 view
Motor energy dissipation performance is mainly in the following aspects: The motor load rate is low. Due to the improper selection of motor, the rich amount of or changes in production technology, will make the motor actual work load far less than ra...[more]
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After sale service small case: the electric motor stator winding to the g
2016-03-29 15:09|5801 view
Case: a user reflect a YP2-280S-6/45KW motor stator winding to ground breakdown, Wannan Motor Service Center sent door-to-door service. Site inspection process and results: the motor factory date is January 2014. The first step, hand rotating motor r...[more]
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Small DC motor disassembly instructions
2015-09-07 09:23|7792 view
To remove a small DC motor notice as follows: 1 before the demolition, should use the instrument for testing, found on the winding, winding short circuit, with or without breaking and other faults, to determine the scope of repair; in the demolition ...[more]
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Structure characteristics of split type brush
2015-09-06 09:13|6516 view
The structural characteristics of the split type brush are as follows: 1 brush body is divided into two pieces, thus improving the brush to inhibit the ability of sparks. Because when the end of the reversing element of the moment, the commutation ci...[more]
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What is the cause of the damage of silicon rectifier components?
2015-08-31 09:11|6804 view
In the self-excited synchronous motor, the reliability of silicon rectifier and affect the reliability of the motor. The damage of silicon rectifier element has some of the following reasons: 1 specifications are inappropriate, the actual forward...[more]
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Measures to prevent clearance and ventilation notch groove corona high vo
2015-08-29 08:33|6514 view
The gap and the ventilation groove to prevent corona notch high-voltage motor measures are as follows: 1 coil groove is used in the low resistance and the anti corona layer; 2 slot using semiconductor paint (Pen Huotu); All 3 pa...[more]
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Washing machine motor operation noise is too big how to deal with?
2015-08-28 08:29|6643 view
The processing method of noise during operation of the washing machine is as follows: 1 the whole machine is not installed in the level or the holder is not fixed, the need to install and fix; 2. The impeller installation is not corre...[more]
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The motor of the electric fan on the power fuse burned immediately do?
2015-08-26 08:38|7742 view
Some electric fan motor on the power fuse burned this shows immediately switch to the motor windings with serious short circuit. At this point should pull off the plug, welding on the first side of the capacitor, the two side of the winding head, with t...[more]
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Requirements for measuring insulation resistance and absorption ratio of
2015-08-25 08:46|6427 view
Need to measure the winding in the overhaul and repair of the insulation resistance and absorption ratio, measurement requirements: 1 when the transfer and overhaul: the rated voltage is 1000V the insulation resistance should not be less than 0.5M. R...[more]
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What test should be conducted after the three phase asynchronous motor is made?
2015-08-24 16:35|6642 view
In order to guarantee the quality of maintenance, the three-phase asynchronous motor has the following maintenance project test: 1 winding insulation resistance between the housing and the winding insulation; 2 winding in the test cold state, ...[more]
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What are the characteristics of three-phase motor windings in the reverse
2015-08-20 09:02|5341 view
In three-phase windings, if one phase winding is called a tail swap, instead connected. On the contrary, the main features are as follows: 1 motor starting torque serious decline. As long as a load or low voltage, the motor will not start to norm...[more]
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Three-phase motor wound rotor and sleeve sealing off cause analysis
2015-08-19 09:35|5016 view
Three-phase motor rotor winding and headgear desoldering is around one of the sub type rotor fault. The main reason is the welding is not completely clear, or welding. Therefore, the increase of contact resistance, electric heating after the solder melt...[more]
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Wannan motor three-phase asynchronous motor by neutral detergent washing
2015-08-17 09:08|4909 view
If the motor is soaked in salt water, the motor should be immersed in water, the salt is dissolved in water, and then washed with neutral detergent. If the motor is acidic water soaking, containing an aqueous solution of caustic soda (1% - 2% concen...[more]
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How to check the stator winding fault of three-phase asynchronous motor
2015-08-15 09:14|4693 view
Three phase asynchronous motor is by a motor and access 380V three-phase AC power supply (phase difference of 120 degrees) power supply, due to the three-phase asynchronous motor rotor and the stator rotating magnetic field in the same direction, differ...[more]
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Fault handling of three phase asynchronous motor with three phase current
2015-08-14 09:09|4080 view
Three phase current unbalance: 1 three phase power supply voltage unbalance; Treatment plan: use the voltage meter to measure the power supply voltage to be adjusted. 2 short circuit of stator winding; Treatment plan: use current meter to me...[more]
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Cause and processing method of noise in operation of three phase asynchro
2015-08-13 09:11|4401 view
The cause of the fault in the operation of three phase asynchronous motor is large: 1 rewinding changing pole number, slot mismatch; 2 rotor rub insulation paper or slot wedge; 3 bearing clearance is too small to wear, bearing failure; 4 fix...[more]
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Method of handling the three phase asynchronous motor with no start and trip
2015-08-12 09:06|5175 view
1 motor can not start may have a few cases: The power is not switched on, winding open circuit, short circuit and grounding, wiring errors; fuse; rotor motor start winding misoperation; overcurrent relay tuning value is too small; the old start switc...[more]
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Anhui Wannan motor manufacturers on the characteristics of electrostatic motor
2015-07-30 09:05|7352 view
First, compared with the electromagnetic motor, electric motor energy conversion efficiency is high. Therefore, the electric field energy density of the small size of the electric motor can be compared with the magnetic field energy density of the elect...[more]
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Common malfunction of capacitor motor
2015-07-28 10:37|3902 view
Capacitor motor is equipped with the capacitor can not be used in place of the electrolytic capacitor, even its capacity, pressure value for can not substitute. Electrolytic capacitor is the "polarity capacitor" of the lead anode and the negative electr...[more]