Commonly used low-voltage electrical control generally classified

Using relays, contactors, push buttons, air switch, limit switch and other low-voltage electrical control circuit consisting called relay contactor control circuit. It is the most common form of control, has low Electric transformer is simple, practical, and easy maintenance features. Is widely used in low-voltage electrical power generation, transmission and distribution establishments and electrical mcb circuit breaker automatic control equipment. Its electricity production, transmission, distribution applications plays a conversion, control, protection and regulation. power transformers used low-voltage electrical control generally divided into two types of manual and automatic. Low-voltage electrical must manually by a human operator, such as knife switch, switch, buttons, etc., is not the so-called automatic low-voltage electrical directly by a human operator, but instead relies on the voltage, current, or other physical changes in mining changed their work status, such as contact , relays, limit switches.