JRD22 motor protection if the motor is a non-fault (overload, equal fault) so that the motor problems existing motor protection with AC contactor (Transistor, complex switches, circuit breakers, reactors, fuses) and other motor running PRODUCTION control systems. Mainly as a motor may occur during operation overcurrent, short circuit, phase loss, overvoltage fault protection. Zhejiang Jian Hua Electronics Co., Ltd., is a professional production of motor protection manufacturers. Comprehensive motor protection device is the motor protection is currently the latest low-voltage products, motor protection are the details of the motor is running various operating states of the acquisition and tracking, through the alarm, fault protection action (protection trip), as well as the delay time setting operation to achieve timely and accurate protection to ensure the safety of the motor provides a measure of protection, to avoid due to electric overload, locked rotor, overvoltage, undervoltage, light load, phase failure, phase unbalance, earth fault caused accidents as possible to ensure effective and safe equipment operation. Improve motor protector is the motor running various operating information and data collection, calculation, analysis, monitoring, alarm, integrated device control. This product has conventional motor protection and control functions, but also to achieve the protection and control directly to the three-phase asynchronous motor or increased safety motor and feeder protection support. Widely used in shipbuilding, as well as civil construction, petroleum, chemical, power, metallurgy, coal, cement, textiles, light industry, municipal and other industries motor maintenance costs, provide scientific and effective production process control protection, monitoring and control. You can optimize the use of the motor, the growth of the motor cycle. Advantages: simple structure, reliable operation, easy to use and low price, no power, no spark, maintenance-free, long life, small size. Main features: Protection: start overtime protection, overload protection, phase protection, phase unbalance protection, stall protection, under voltage protection, over voltage protection, leakage protection, ground fault protection, light-load protection, no-load protection , short circuit protection, blocking protection, external fault protection, tE time, fixed inverse time overload protection, two protective relay output. Control functions: direct start, pros and cons of starting, star delta starters, direct bypass starter, autotransformer reduced voltage starting, multi-start control. Monitoring: the running state, three-phase current, line voltage, leakage current, fault information, the cumulative time of motor work, the fault frequency information. The set features: Rated current, protect the current curve, start time, phase unbalance, stall multiples of leakage current, over under-voltage, mailing address, on the protection of electrical motors from the start time. Remote: DC4-20mA standard analog output, no external power supply. Communication: RS485 serial communication with the computer may constitute 256 the protector conventional protection and control network. Remote data set and display the alarm, remote motor start and stop control. Recall function: can store ten times the cause of recent motor occurs, press the reset button and remove the last motor fault code occurs, push the front display again. Comprehensive motor protection, in practical applications can play a huge role in saving business costs, provide real-time protection for the motor, to ensure normal production and improve production efficiency!