KR20050114198A - The effectual high voltage pannel - Google Patents

Abstract

The present invention solves the problem of not being able to check the inside of a closed switchgear of an airtight or filled metal enclosure structure filled with insulating gas such as SF6 GAS, and improves transformer efficiency by constructing heat pipes inside and outside the high voltage part. It is a special high-voltage high-efficiency safety switchgear that can proactively respond to accidents in case of an accident and the safety of the special high-voltage switchgear by means of centralized monitoring and recording function through CCTV.

Description

Extra High Efficiency Safety Water Switchgear {The effectual high voltage pannel}

The present invention is to actively respond to the safety and handling of accidents in the high-voltage switchgear, the failure section automatic switchgear, instrument transformer, high-pressure fuse, lightning arrester, etc. inside the metal enclosure that was previously filled with insulation gas such as SF6 GAS It is a special high-voltage switchgear characterized by a monitoring unit, a display unit, a communication unit for monitoring the abnormal operation of the high-voltage unit provided in the switchgear.

As a method of detecting device abnormality occurring inside a closed high voltage part by a known technique, there is a gas insulation switchgear (GIS) discharge diagnosis system, which causes bolt loosening, poor contact, inflow of metallic foreign substances, void inside the spacer. When a partial discharge occurs due to a void or the like, UHF or Ultrasonic Wave (AH) is radiated to the sensor to detect abnormality of the power equipment in the live state and always monitor and diagnose it ON-LINE. Known.

Such a diagnosis system can identify the type of the partial discharge power source by analyzing the type of ultra-high frequency, and can detect a minute discharge signal of 5pC or less, which is suitable as a constant detection device.

However, this conventional technology has a problem that a malfunction occurs when there is a strong electromagnetic wave generation source near the GIS. In particular, GIS system is applied to power equipment with high voltage, so there is little possibility of malfunction due to external electromagnetic wave because facilities or devices that generate strong electromagnetic waves such as high voltage transformer, insulator, switchgear, transmission line are arranged in the vicinity. not.

In the prior art, the introduction of external electromagnetic waves directly into the electromagnetic wave detector was intended to overcome by employing a shielding material in the electromagnetic wave detector enclosure, but the function of providing information for the administrator to directly determine whether there was an abnormality was insufficient.

The present invention enables the administrator to directly check the abnormal operation of the devices in the high-pressure part of the switchgear space, providing visual information that can accurately determine the abnormality, and ultra-high frequency (UHF) that is emitted when a partial discharge occurs, Ultrasonic (AE) and sparks can be detected with a detection sensor to detect abnormalities in power equipment, as well as black box functions such as determination of sparks during discharge detection, intensive monitoring and recording function through CCTV, Its technical task is to improve the efficiency of transformer through the cooling part composed of heat pipe and the temperature sensor, and to monitor and diagnose on-line at all times in live state through communication and display functions.

Closed switchgear is usually divided into low voltage part and high voltage part, and the high pressure part is composed of automatic switchgear, lightning arrester, instrument transformer, high voltage fuse, transformer, etc., and the low voltage part is a measuring instrument that measures power status such as insulation resistance, current, voltage And an earth leakage breaker, a wiring breaker, a current transformer, a terminal block, and the like.

The present invention relates to a high-voltage unit monitoring and transformer efficiency improvement system for always-on monitoring and accurate diagnosis in the live state of the existing switchgear, and additionally comprises a lighting device, a monitoring unit, a cooling unit in the high-pressure unit, It further comprises a black box unit, an operator input device, a display unit, and a communication unit.

The cooling unit is composed of a heat pipe, and the inside and the outside of the high pressure part are connected to the inside, and the inside of the heat absorbing part of the heat pipe is composed of the heat generating part of the heat pipe, which is a natural cooling system in general, which lowers the temperature of the high pressure part and the transformer to improve efficiency.

Consists of a lighting device to monitor the abnormal operation of the equipment in the internal high voltage space, CCTV (closed-circuit television) and detection sensors (UHF, ultrasonic (AE), light detection sensor (CDS), temperature detection sensor) It consists of a monitoring unit, which makes intensive surveillance CCTV recording during administrator input time according to the detection of abnormal operation (spark, high temperature detection), and the recording data is stored in the black box part of the low pressure part.

The black box part of the low voltage part stores power data collected through a measuring instrument that measures power state such as insulation resistance, current amount, voltage, and the like, and stores video information taken through CCTV when an abnormality such as spark and high temperature detection is detected.

The operator input device is installed in the front of the low pressure part or in the remote control room to input internal monitoring and device operation commands through lighting device ON / OFF and CCTV direction adjustment.

The display unit is installed in the control room at the front of the low pressure unit or remote place, and the administrator checks the state of the inside of the high pressure unit through a display unit composed of LCDs.

The communication unit performs internal communication such as CCTV image information monitoring unit detection sensor and lighting device ON / OFF command through a communication unit consisting of an internal communication line, a modem and a wired communication line. Send SMS text message, send video of mobile phone, and notify abnormality occurrence signal to control room.

When detecting the temperature above the input value (detection temperature) by the detector's temperature detection sensor, the forced cooling is performed by the forced cooler composed of a blower in the heat generating part of the heat pipe to improve the efficiency of the transformer, and the forced cooler can further configure the air conditioner. have.

The present invention is commonly applied to a closed metal switchgear structure filled with an insulating gas, such as SF6 GAS, and a closed switchgear insulated with a general atmosphere. The metal enclosure further includes an internal monitoring window composed of double tempered glass. Special high-pressure high-efficiency safety switchgear characterized in that.

As an example, the closed switchgear is divided into a low pressure part and a high pressure part, and the high pressure part is composed of a fault section automatic switchgear, an arrester, an instrument transformer, a high pressure fuse, a transformer, and the like. The low pressure part includes a black box part, an operator input device, a display part, and a communication part, and the cooling part is configured as a heat pipe, and the inside and the outside of the high pressure part are connected to the inside of the heat absorbing part of the heat pipe, and the heat generating part of the heat pipe. It is a closed enclosed switchgear that consists of a lighting device, a closed-circuit television (CCD) and a detection sensor (UHF), an ultrasonic wave (AE), and a light detection sensor (CDS) to monitor the abnormal operation of devices in the space of the internal high voltage part , Monitoring unit composed of temperature detection sensor), black box unit for storing recording and power data monitoring information according to detection of abnormal operation (spark, high temperature detection), low pressure Operator input device that can input the device operation command in the control room or control room, and the display unit (display device) that can confirm the manager's relatedness, the low pressure part or control room (through the communication part) ) Internal monitoring through ON / OFF and CCTV adjustment of lighting device through operator input device, and abnormal detection of internal spark discharge such as detection sensor ultra high frequency (UHF), ultrasonic wave (AE), and light detection sensor (CDS). It detects the internal temperature and transformer temperature of the high voltage part through the temperature detection sensor, and if an abnormality occurs, it enters the spark monitoring through CCTV recording and the insulation resistance, current amount, voltage, etc. measured by the measuring instrument of the low voltage part of the recording and closed switchgear. Stores the power status in the memory of the black box and sends SMS text messages to the mobile phone through the communication unit It notifies the occurrence of abnormal phenomenon to the control room, video transmission of mobile phone, control room, and displays the inside of the high pressure part monitored by CCTV on the display part composed of LCD of the low pressure part, and the cooling part detects the internal temperature of the enclosed space and the temperature of the transformer. When the temperature is detected below the manager input value (detection temperature), the transformer temperature is lowered according to the natural cooling system through the heat absorbing part inside the high pressure part composed of the heat pipe and the heating part connected to the outside of the high pressure part, and the transformer efficiency is increased. When the temperature is detected above the input value (detection temperature), it improves transformer efficiency by forced forced cooling through the forced cooler composed of blower in the heat generating part of the heat pipe, and the image of the inside of the high voltage part monitored by CCTV on the LCD display of the remote control room On-line monitoring and accurate diagnosis are always performed in live state. Each air conditioner is further configured, and the monitoring unit is a special high-pressure high-efficiency safety switchgear featuring an internal monitoring window composed of double tempered glass in the high-pressure unit enclosure for monitoring the sealed high-pressure unit.

The present invention solves the problem of not being able to check the inside of a closed switchgear of an airtight or filled metal enclosure structure filled with an insulating gas such as SF6 GAS, and improves transformer efficiency by constructing heat pipes inside and outside the high voltage part. In addition, it is able to proactively respond to accidents in case of an accident and the safety of the special high voltage switchgear through the centralized monitoring and recording function through CCTV.

1 is a representative block diagram of an extra-high pressure high efficiency safety switchgear

Claims (3)

It is a closed switchgear divided into a low pressure part and a high pressure part.The high pressure part consists of a fault section automatic switchgear, an arrester, an instrument transformer, a high pressure fuse, and a transformer. The black box part, the operator input device, the display part, and the communication part are further configured, and the cooling part is composed of a heat pipe, and the inside and the outside of the high pressure part are connected to the inside, and the inside of the heat absorbing part of the heat pipe is closed with a heat generating part of the heat pipe. It is a light type switchgear and a lighting device to monitor the abnormal operation of the equipment in the space of the internal high voltage part, CCTV (closed-circuit television) and detection sensor (UHF, ultrasonic (AE), light detection sensor (CDS), temperature detection sensor ) Monitoring unit, black box unit for storing recording and power data monitoring information according to detection of abnormal operation (spark, high temperature detection), low pressure unit or control Operator input device that can input the device operation command on the monitor, and the display unit (display device) that can confirm the manager's relatedness, so that the manager can monitor the status of the inside of the enclosed closed switchgear, the low pressure part or the control room (modem and wired communication line) Internal monitoring through lighting device ON / OFF and CCTV control through the operator input device in the configured communication unit), and through the detection sensor ultra high frequency (UHF), ultrasonic (AE), light detection sensor (CDS) Detects abnormality such as spark discharge, and detects internal temperature and transformer temperature of high voltage part through temperature detection sensor.In case of any abnormality, it enters spark monitoring through CCTV recording, insulation resistance measured by measuring instrument of low voltage part of recording and closed switchgear. The current state, voltage, and power status are stored in the memory of the black box part and transmitted through the communication part composed of the modem. Coinization SMS text message transmission, mobile phone video transmission, abnormalities are reported to the control room, and the low pressure part LCD displays the status inside the high pressure part monitored by CCTV, and the cooling part shows the internal temperature of the enclosed space and the transformer. When the temperature is detected below the administrator input value (detection temperature), the efficiency of the transformer is increased by lowering the transformer temperature according to the natural cooling system through the heat absorbing part inside the high pressure part composed of the heat pipe and the heating part connected to the outside of the high pressure part. When the temperature is detected above the input value (detection temperature) through the detection sensor, the forced cooling by means of a forced cooler composed of a blower on the heat pipe of the heat pipe improves the efficiency of the transformer, and the inside of the high voltage part monitored by CCTV on the LCD display of the remote control room Always monitor and accurate progress with ON-LINE in live state Special high-pressure, high-efficiency safety switchgear. The extra-high pressure high efficiency safety water distribution panel according to claim 1, wherein the forced cooler further comprises an air conditioner. The high-pressure high-efficiency safety water distribution panel according to claim 1, wherein the monitoring unit comprises an internal monitoring window composed of double tempered glass in the high-pressure unit enclosure to monitor the sealed high-pressure unit.