Power protection device of power network information machine room

A technology for protection of information equipment rooms and power supplies, which is applied to emergency protection circuit devices, emergency protection circuit devices, and circuit devices for limiting overcurrent/overvoltage, and can solve the problem that undervoltage protection devices cannot resist lightning attacks, Improve and damage electrical appliances and other problems, achieve good promotion and application value, and protect the power supply

Pending Publication Date: 2018-11-02
STATE GRID HUBEI ELECTRIC POWER CO XIAOGAN POWER SUPPLY CO +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the switch in the network computer room was damaged.
[0005] At present, there are many kinds of lightning protection and surge protection devices on the market. After understanding, there are still damages t

Method used

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  • Power protection device of power network information machine room

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0027] Such as figure 1 As shown, a power supply protection device for a power network information room includes:

[0028] Anti-surge circuit composed of varistor M1, varistor M2, varistor M3, and gas discharge tube LT;

[0029] Time delay protection circuit composed of time relay J1 and AC contactor J2.

[0030] The L end of the AC power supply is connected to one end of the varistor M1, the other end of the varistor M1 is connected to one end of the varistor M3 and the N end of the AC power supply, and the other end of the varistor M3 is connected to the upper end of the gas discharge tube LT, and the gas discharges The lower end of the tube LT is connected to the ground terminal PE; the L end of the AC power supply is connected to one end of the varistor M2, and the other end of the varistor M2 is connected to the upper end of the gas discharge tube LT;

[0031] After the AC power source passes through the anti-surge circuit, connect the time relay J1, the time relay J1 is connect...

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PUM

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Abstract

The invention relates to a power protection device of a power network information machine room. The device comprises a surge-prevention circuit and a delay protection circuit, wherein the surge-prevention circuit comprises a piezoelectric resistor M1, a piezoelectric resistor M2, a piezoelectric resistor M3 and a gas discharging tube LT, the delay protection circuit comprises a time relay J1 and an AC contactor J2, an AC power supply passes through the surge-prevention circuit and then is connected with the time relay J1, the time relay J1 is connected with the AC contactor J2, the AC contactor J2 is connected with a self-recovery over/under-voltage module M4, the time relay J1 is connected with a GSM alarm, and the self-recovery over/under-voltage module M4 is used for sampling and processing the AC power supply and outputting the AC power supply to power utilization equipment of the network machine room. In the power protection device of the power network information machine room, the device is arranged in the network information machine room, an important effect of protecting a power supply of the network information machine room is achieved, and the device has the advantages ofreliability quality and reasonable design.

Description

technical field [0001] The invention relates to a power supply protection device, in particular to a power supply protection device for a power network information machine room. Background technique [0002] Xiaogan power supply information network metropolitan area network covers all secondary units and affiliated companies in the urban area. The wide area network includes 10 220KV substations, 48 ​​110KV substations, 7 county and city companies’ office network access and marketing system dedicated network access. Operation and maintenance of terminal access equipment, 220KV substation, core switching equipment and backbone aggregation equipment of county and city companies, and technical support for access layer equipment. In the information room, there are more than 100 sets of network and security equipment such as high-end router equipment interconnected between the company and the provincial company, local area network access equipment, server access switches, internal...

Claims

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Application Information

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IPC IPC(8): H02H9/00H02H9/04H02H3/20H02H3/04
CPCH02H9/005H02H3/042H02H3/207H02H9/042
Inventor 李志勇赵沛张艳李芳亚李志平卓志强侯俊李昂尹恒梁书琴刘骊刘敬雄刘燕邱琳焦仲萍
Owner STATE GRID HUBEI ELECTRIC POWER CO XIAOGAN POWER SUPPLY CO
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