CN205537749U - Cubical switchboard arc light temperature measuring system - Google Patents

Abstract

A switch cabinet arc temperature detection system, including a temperature measurement monitoring server placed in a monitoring room, a wireless temperature measurement gateway, a temperature measurement repeater placed in a high-voltage cabinet room, a wireless temperature measurement collector, and a busbar room in a high-voltage switch cabinet. The wireless passive temperature measuring probe and arc light sensor in the cable room, the wireless passive temperature measuring probe is installed at the contact point that is prone to heat in the high voltage switch cabinet, and the arc light sensor is installed on the inner wall of the high voltage switch cabinet bus room and cable room, The wireless temperature measurement collector and the temperature measurement repeater are connected by optical fiber, and the temperature measurement repeater is connected to the temperature measurement monitoring server through the wireless temperature measurement gateway. The detection system of the utility model comprehensively applies the arc light detection system and the wireless temperature measurement system to the secondary room of 10kV cabinet opening, implements uninterrupted real-time arc light and temperature monitoring for the busbar room and cable room of the medium voltage switch cabinet, and monitors the switch cabinet It has achieved definite protection.

Description

A Switchgear Arc Light Temperature Detection System

technical field

The utility model relates to a temperature detection system, in particular to an arc light temperature detection system suitable for a 10KV switch cabinet in a port.

Background technique

Judging from the use of the existing 10KV substation, under frequent operation of the 10KV switchgear, especially the 10KV contactor cabinet of the belt conveyor system (always in frequent operation), it is difficult to avoid the misoperation of the isolating switch and the closing of the grounding wire. Forgotten tools in the cabinet after overhaul of gates and equipment, insulation aging, mechanical wear, overvoltage, large dust, high temperature and humidity, overload, poor contact of cable heads, poor contact of switch contacts due to long service time, etc., the above conditions It is likely to cause the internal short circuit fault of the switch cabinet to generate arc fault at the same time, the switch cabinet will heat up, etc., resulting in a major power outage, which will directly affect the safety and operation stability of the port enterprise. The traditional comprehensive protection devices for 10KV switchgear cannot meet the requirements of rapid removal of arc faults, detection of temperature in the cabinet, or protection coverage. In order to avoid delays in removal of faults and the expansion of accidents, there is an urgent need for a switch cabinet protection system that detects the real-time temperature of the switch cabinet. .

Contents of the invention

In order to solve the above problems, the utility model provides an arc temperature detection system for uninterrupted real-time monitoring of the busbar room and the cable room of the medium voltage switchgear.

The technical scheme that the utility model takes:

A switch cabinet arc temperature detection system, including a temperature measurement monitoring server placed in a monitoring room, a wireless temperature measurement gateway, a temperature measurement repeater placed in a high-voltage cabinet room, a wireless temperature measurement collector, and a busbar room in a high-voltage switch cabinet. The wireless passive temperature measuring probe and arc light sensor in the cable room, the wireless passive temperature measuring probe is installed at the contact point that is prone to heat in the high voltage switch cabinet, and the arc light sensor is installed on the inner wall of the high voltage switch cabinet bus room and cable room, The wireless temperature measurement collector and the temperature measurement repeater are connected by optical fiber, and the temperature measurement repeater is connected to the temperature measurement monitoring server through the wireless temperature measurement gateway.

The wireless passive temperature measurement probe and the arc light sensor send the collected signal to the wireless temperature measurement collector in real time.

Beneficial effects of the utility model: the detection system of the utility model comprehensively applies the arc light detection system and the wireless temperature measurement system to the secondary room of the 10kV cabinet opening, and implements uninterrupted and real-time arc light in the busbar room and cable room of the medium voltage switchgear , Temperature monitoring, to achieve a real protection of the switchgear.

Description of drawings

Fig. 1 is the structural representation of the utility model.

detailed description

A switchgear arc temperature detection system, including a temperature measurement monitoring server 2 placed in a monitoring room 3, a wireless temperature measurement gateway 1, a temperature measurement repeater 4 placed in a high-voltage cabinet room 9, a wireless temperature measurement collector 5, and a high-voltage The wireless passive temperature measuring probe 8 and the arc light sensor 7 in the bus bar room and the cable room 6 in the switch cabinet. On the inner wall of the high-voltage switchgear busbar room and the cable room 6, the wireless temperature measurement collector 5 and the temperature measurement repeater 4 are connected by optical fiber, and the temperature measurement repeater 4 is connected to the On the temperature measurement monitoring server 2.

The wireless passive temperature measurement probe 8 and the arc light sensor 7 send the collected signals to the wireless temperature measurement collector 5 in real time.

As shown in the figure, a set of arc light sensor 7, wireless passive temperature measuring probe 8 and wireless temperature measuring collector 5 are installed in the incoming line cabinet or bus coupler cabinet in the high-voltage cabinet room 9 of the 10kV substation in the port. Install a set of wireless passive temperature measuring probe 8 and wireless temperature measuring collector 5 in the cabinet, install wireless passive temperature measuring probe 8 and arc light sensor 7 in the busbar room and cable room 6 of the high-voltage switch cabinet, and install wireless passive probe 8 At the contact point that is prone to heat, the arc sensor 7 is installed on the inner wall of the busbar room and the cable room 6, and the wireless passive temperature measurement probe 8 and the arc sensor 7 send the collected signal to the wireless temperature measurement collector 5 in real time, and the wireless temperature measurement The collector 5 and the temperature measurement repeater 4 are connected by optical fiber, and the temperature measurement repeater 4 can communicate with the monitoring server 2 in the background monitoring room 3 of the substation, and upload the collected arc sensor signal and temperature signal to the background, and the The background monitoring server 2 uniformly judges the protection logic of the switchgear. If the temperature is too high and exceeds a certain value, the monitoring server 2 will automatically alarm and remind the on-duty personnel to take measures. If an arc occurs, the monitoring server will respond within milliseconds. The collected signals such as current and voltage are analyzed and processed to determine the type of fault and send a trip signal to the upper circuit breaker. At the same time, the address of the arc sensor 7 can also be located.

Claims (2)

1. A switchgear arc temperature detection system is characterized in that it comprises a temperature measurement monitoring server (2) placed in a monitoring room (3), a wireless temperature measurement gateway (1) and a measurement system placed in a high voltage cabinet room (9). Temperature repeater (4), wireless temperature measurement collector (5), and wireless passive temperature measurement probe (8) and arc light sensor (7) in the busbar room and cable room (6) in the high voltage switchgear, the wireless The passive temperature measurement probe (8) is installed at the contact point that is prone to heat in the high-voltage switch cabinet, and the arc sensor (7) is installed on the inner wall of the high-voltage switch cabinet busbar room and cable room (6). The temperature measurement repeater (5) and the temperature measurement repeater (4) are connected by optical fiber, and the temperature measurement repeater (4) is connected to the temperature measurement monitoring server (2) through the wireless temperature measurement gateway (1). 2. The switchgear arc temperature detection system according to claim 1, characterized in that, the wireless passive temperature measurement probe (8) and the arc sensor (7) send the collected signal to the wireless temperature measurement collector in real time (5).