The four main characteristics of phase sequence protectors

　　phase sequence protectorIt is a multifunctional monitoring and protection instrument for three-phase three wire power systems or three-phase electrical equipment, integrating three-phase voltage display, overvoltage protection, undervoltage protection, phase loss protection (phase failure protection), three-phase voltage imbalance protection, and phase sequence protection (phase mismatch protection).

Protectors can be used to monitor important parameters (voltage, phase sequence, phase loss, phase balance) in three-phase power supply systems. They can promptly issue alarm signals for abnormal situations that may endanger the safe and reliable operation of the power supply system and equipment. This enables the control system to take appropriate measures before the machine equipment is further damaged, thereby protecting the machine equipment and system, improving their effectiveness, and reducing maintenance costs and time caused by three-phase system failures.

　　phase sequence protectorAdopting powerful microprocessors and non-volatile storage technology, the display adopts high-definition ultra wide temperature Chinese LCD, which has the characteristics of complete functions, stable performance, intuitive display, easy operation, and sound and light alarm function. It adopts panel installation, elegant and beautiful appearance, and elevates the level of low-voltage electrical control devices.

Main Features

1. High precision: Equipped with powerful microprocessors, especially AC sampling technology, the voltage measurement accuracy is ± 0.5%, which can display the voltage values of three-phase power lines separately, equivalent to the function of a three-phase voltmeter.

2. Comprehensive functions: It has three-phase voltage display, overvoltage protection, undervoltage protection, phase loss protection (phase failure protection), three-phase voltage imbalance protection, phase sequence protection (phase mistake protection), and sound and light alarm integrated.

3. High reliability: Adopting the three-phase power supply technology of *, it can ensure the normal operation of protection, alarm, and display functions even under extremely low voltage and phase loss conditions.

4. Humanization: All protection functions can be selected to be turned on or off, and action threshold values and action times can be set for users to flexibly adjust according to their actual needs. During normal operation, parameter settings can also be viewed and modified.