Use and scope of application

When the AC asynchronous motor is started at rated voltage, the initial starting current is very large, often exceeding many times the rated current (usually 5~7 times). In order to reduce the starting current and not affect the power grid, the method of reducing the voltage is usually used. To start the AC asynchronous motor, the commonly used step-down method is to use a reactor or an autotransformer. The starting process of the AC motor is very short (usually several seconds to two minutes), and the reactor or auto-coupling for step-down starting will be started after starting. Transformer removal. The product is designed according to the starting characteristics of the high voltage asynchronous motor, matching the motor power 220-2800kW.

Product model and meaning

Features

1) NMQKSG, NMQKSC dry core starter reactor core is made of high quality imported silicon steel sheet, the core column is divided into uniform small sections through multiple air gaps, the air gap is insulated by epoxy board, and high temperature and high strength adhesive is used. In order to ensure that the air gap does not change when the reactor is running.

2) The end face of the iron core is made of high-quality silicon steel sheet end face glue, so that the silicon steel sheets are firmly combined, which greatly reduces the noise during operation and has better corrosion resistance.

3) Coil wrapped structure, the main insulation of the coil is hot-baked and immersed in high temperature insulating varnish under vacuum. The coil not only has good insulation performance, but also has high mechanical strength and can withstand high current impact and thermal shock when the motor starts. Without cracking.

Use environment

1) The altitude does not exceed 1000 meters.

2) Operating environment temperature is -25 ° C ~ +45 ° C.

3) Installed indoors without violent vibration, without any harmful gas or dust, no flammable or explosive materials.

4) After one start, it should be cooled for 6 hours before starting again.

Performance indicators and technical parameters

1) The dry start reactor is smaller than the traditional oil-immersed reactor and air-core reactor, and has the characteristics of light weight, small space, simple structure and convenient installation.

2) The temperature resistance level reaches F grade (155 ° C).

3) The loss of the dry core starter reactor is lower than that of the oil immersed reactor.

4) The noise of the dry core starter reactor is not greater than the national standard (65dB).

Shape and installation dimensions