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Chigo Air Conditioning Maintenance in Mentougou District, Beijing: Knowing the Maximum Current of the Compressor

时间:2019-12-24 浏览: Service time: 2019-12-24

Beijing Chigo Air Conditioning Aftermarket Outlet Repair Mentougou District Service Areas: Datong Street, Chengzi Street, Dongxinfang Street, Datai Street, Wangping District, Yongding District, Longquan District, Tanzhesi Town, Junzhuang Town, Yanchi Town , Zhaitang Town, Qingshui Town, Miaofeng Mountain Town. Beijing Fangshan District service areas: Chengguan Street, Xinzhen Street, Xiangyang Street, Dongfeng Street, Yingfeng Street, Xingcheng Street, Liangxiang Area, Zhoukoudian Area, Liulihe Area, Gongchen Street, Xiqiao Street, Yancun Town, Doudian Town, Shilou Town, Changyang Town, Hebei Town, Changgou Town, Dashiwo Town, Zhangfang Town, Shidu Town, Qinglong Lake Town, Hancunhe Town, Xiayunling Township, Nanjiao Township, Fozizhuang Township , Daanshan Township, Shijiaying Township, Puwa Township. Air conditioning repair, cleaning, disinfection, installation, relocation, maintenance, security inspection, etc. For more information, please see the homepage URL, if you have any questions, please contact customer service

Compressor maximum current knowledge description

(3) Maximum continuous current (MCC) MCC refers to the current when the built-in motor starts protection trip and power failure under the condition of maximum load and low voltage. The MCC value refers to the maximum current when the compressor operates under transient conditions and exceeds the application range. When this value is exceeded, the overload protection is activated and the current is cut off to protect the motor! LRA is the locked rotor current, which is the current measured after the rotor is locked at the rated voltage, and is printed on the compressor nameplate. Roughly speaking, the LRA value can be regarded as the starting current. However, under normal conditions, the starting current will be less than the locked rotor current. Why is that? At present, many countries have restrictions on the starting current of household appliances, which is also due to home, environmental and personnel safety considerations. So, what is the current method to reduce the starting current? What else can I do besides safety? I will talk briefly.

At present, the methods to deal with the large starting current of the compressor include: direct start, series resistance start, autotransformer start, star delta decompression start, and inverter start. Of course, there is also a starting method considering energy saving, which can reduce the large starting current of the inverter. These treatment methods are not only for the safety of line operation, but also to reduce the impact of the power grid.

Max OPER. The maximum operating current refers to the operating current of the compressor under the conditions of maximum load and less than 10% voltage. This value is a new parameter on the compressor nameplate and represents the maximum rated load current of the compressor. The maximum current is used to select cables and contactors. During normal operation, the operating current of the compressor is always less than the maximum operating current value.

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