In the power supply system (or communication system) with a ranging protector for AC 50/60Hz, the rated voltage 220V to 380V, the indirect lightning and direct thunder movie ring or other instantaneous overvoltage are protected.The requirements of the three industries and industrial fields have the requirements for the protection of the protection of the surge in the industrial field. It has relative phase, relative, relative mid -line, mid -line, mid -line, and its combinations such as land and its combination.
Rap protection device model
The role of the surge protector
The rising protector, as the name suggests, is protected by the instant voltage that exceeds the normal working voltage.In essence, the surge is a strenuous pulse that occurs in just millions of minutes. The causes of the surge may be: heavy equipment, short -circuit, power switching, or large engines.The surge protector products containing surge blocking equipment can effectively absorb the huge energy of emergencies to protect the connection equipment from damaged.
Price of surge protector
1. Reference price of three-phase AC protection device for rush protector: ≥1 set, ￥ 480.00 brand: Zyspd model: zyspd20K385C/4-FM supplier: Shenzhen Zhenyu Electronics Co., Ltd. 2.-40C Reference Price: ≥1, ￥ 45.00 Brand: Lightlon model: LR1-40C supplier: Leqing Linglu Electric Technology Co., Ltd.
Model wiring method
1. Orthodox in the middle may be close to the surge protector.This wiring method can ensure the protection of sensitive equipment.In this way, the length of the power supply line and the ground line will be the shortest.2. The first rule that should be obeyed is that the grounding terminal of the surge protector to its backup protection circuit breaker (fuse) should not exceed 50cm.3. The external power supply enters the line from the top of the power distribution box.
Principle
1. Switching type: The working principle is that when there is no instantaneous overvoltage, it presents high impedance, but once the lightning is responding to lightning, the impedance will change to a low value, allowing light current to pass.When used as a device, the devices are: discharge gaps, gas discharge pipes, gates flow crystals, etc.2. Limited voltage type: Its working principle is that when there is no instantaneous overvoltage, it is high resistance, but the increase in the amount of electricity and voltage of electricity will continue to decrease, and its current voltage characteristics are strong and non -linear.Device used for such devices include zinc oxide, pressure -sensitive resistance, triple -phase power lightning lightning device inhibit diode, avalanche diode, etc.

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