LNEYA ultra-low temperature cold box power supply+electronic control instrument system description
LNEYA ultra-low temperature cold box needs to be tested after a long time of use. What should be paid attention to when the power supply and electronic control instrument system are inspecting?
LNEYA ultra-low temperature cold box power supply and electronic control instrument system inspection, before power-on should check whether the distribution capacity and unit power are consistent, whether the selected cable diameter can withstand the host operating current. Check whether the electrical system is consistent with the unit. The unit is electrically: three-phase five-wire system (three phase lines, one neutral line, one ground line, 380V ± 10%). Check if the power supply line of the compressor is connected tightly. If it is loose, retighten it. The torque at the compressor wiring is 500kg/cm. Due to factors such as long-distance transportation and lifting, the screws may be loose. Failure to do so may result in damage to electrical components (such as air switches, AC contactors, etc.) and compressors in the main control cabinet.
С помощью мультиметра тщательно проверьте все электрические цепи сверхнизкотемпературного морозильника, убедитесь, что проводка правильно установлена на место; с помощью мегаомметра убедитесь, что в корпусе нет короткого замыкания; проверьте, что провод заземления правильно установлен на место, а сопротивление изоляции относительно земли составляет более 2MΩ; проверьте, подходит ли кабель питания. Требования к мощности. Проверьте, установлен ли разъединитель на линии питания блока питания. Вся проводка главной цепи в шкафу управления и внешняя проводка цепи управления может быть запитана после всесторонней проверки (например, подогреватель масла в картере, электронный защитник компрессора, датчик температуры циркулирующей воды, проводка целевого переключателя потока, подключение насоса); проверьте, затянуты ли болты клемм и нет ли ослабления.
The performance of the power supply and the electronic control instrument are more important in the operation of the LNEYA ultra-low temperature cold box, so it is necessary to check the recommendations regularly.

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