MPU-32-X69X-10000

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Protection Relays & Systems have long been used to protect industrial and commercial equipment from dangerous conditions, such as low voltage, high voltage, abnormal frequency and current overbalance.

MPU-32-X69X-10000 is one kind of high precision protection relay and it is suitable for motor protection and control. It can provide effective protection against overload, locked rotor, phase balancing, undercut protection and phase succession. It also has system status display, operational status monitoring and power interruption notification features as well.

MPU-32-X69X-10000 can be used in manyapplications such as electric power plants, chemical industry, metallurgy industry, water conservancy and hydropower projects. It is widely used in operations such as motor starting, motor running, overcurrent, high and low voltages, phase sequence protection, phase balance protection, temperature protection, high pressure control and out of phase protection. It can take the place of the protection circuit breaker or fuse when it comes to motor or transformers protection.

The working principle of the MPU-32-X69X-10000 is based on the static characteristic of an isolated DC chopper. This type of relay is composed of a three winding transformer, a static chopper, a load switcher, and a logic circuit. The voltage of the three windings is normalized so that the static chopper is triggered and the load switch is opened when the predetermined overvoltage and undervoltage thresholds are exceeded. The logic circuit processes the current and voltage values of all three windings and triggers the static chopper accordingly.

When the predetermined limits are exceeded, the static chopper will disconnect the power supply and an alarm will sound. In addition, the relay also has temperature and pressure protection, as well as an asymmetric protection function. Once the temperature or pressure of the load exceeds the predetermined setting, the alarm will sound to alert the operators of the hazardous situation. The asymmetric protection function is designed to detect any abnormal phase differences in the machine, such as phase imbalances or false phase connections. If any of these conditions occur, the relay will sound an alarm and shut off the power supply to the machine.

MPU-32-X69X-10000 provides efficient and reliable motor protection and control, as well as warning against dangerous conditions. With its wide range of applications and excellent working principle, it has become an essential part of the protection circuits in industrial and commercial settings.

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