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Liquid resistance starter

Liquid resistance starter

Description

The liquid resistance starter cabinet is also called "liquid rheostat" (alias "water resistor"). The basic concept of a new type of starter and liquid resistor starter developed to improve the starting characteristics of large, medium and small tangled communication asynchronous motors is the slow spacing of the two parallel faces in the conductive liquid according to the mechanical gear transmission. Slowly reducing to zero, the resistance value in the stringer generator rotor control loop is smoothed, thereby achieving light load smooth start of the tangled large, medium and small motors. It gets rid of the problem that the shock sensitive current of the frequency sensitive resistor starter is large, difficult to start, and the practical operation is troublesome.

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The liquid resistance starter cabinet is also called "liquid rheostat" (alias "water resistor"). The basic concept of a new type of starter and liquid resistor starter developed to improve the starting characteristics of large, medium and small tangled communication asynchronous motors is the slow spacing of the two parallel faces in the conductive liquid according to the mechanical gear transmission. Slowly reducing to zero, the resistance value in the stringer generator rotor control loop is smoothed, thereby achieving light load smooth start of the tangled large, medium and small motors. It gets rid of the problems of large amount of shock current of the varistor starter, difficult to start and troublesome operation. The light load start of the motor of the applicable equipment is a substitute for the frequency sensitive resistor starter and the metal material resistor starter.

1, the solution of the liquid resistance starter cabinet is generally asked about the solution and gear transmission:

The gear drive of the liquid resistance starter cabinet selects the travel switch. When the travel switch is not so good or other reasons, the over-stroke switch posture, the power supply is turned off and the interlock is made to make the main electric brake, which has the maintenance effect. However, the travel switch often shows rust and frost. Common faults such as jams and loose contacts, our company chose a high-frequency oscillating proximity switch instead of a pedal-type limit switch, which achieved good practical results.

2. Alarm equipment:

The common alarm system of the liquid resistance starter cabinet incubator is a general electric bell. Usually, the electric bell has a weak working condition, and it will be damaged after more than ten minutes of continuous work. Because contemporary companies have fewer staffings and a large maintenance area, maintenance staff can immediately arrive on the spot to resolve common faults when ensuring common fault alarms. Therefore, it is necessary to increase the continuous professional ability of the electric bell. After long-term scientific research, people choose to connect the communication bell to the diode. This method is simple and reasonable, and it can handle the problem of bell damage. It can also be replaced with a special bell with a special alarm system with sound and light alarm. , are very good ways ·

3. Temperature control system software:

Hydraulic all normal operating temperature: D = 65 ° C; ambient operating temperature: a 5.50 ° C. When the working temperature is less than 0 °C for a long time, the electric heater should be modified to avoid the freezing of the resistor liquid in winter. The startup function of the water tank and the ultra-low temperature can not be started or frozen. In order to ensure the indoor space in the liquid resistance work. The temperature is within normal limits, and people have installed indoor space electric heaters on both sides of the water tank, gear drive and motor control board. The indoor space electric heater can be made of 220v and 1 W iodine tungsten lamps in series. It has been used in our company and the actual effect is very good.


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