更新時(shí)間：2025-01-16
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1 Product Introduction
現階段，電力系統對于電能的質(zhì)量提出越來(lái)越高的要求，不僅要確保供電穩定可靠，而且供電的安全性也是重要要求。電力系統中，金屬封閉開(kāi)關(guān)設備得到廣泛應用，因此開(kāi)關(guān)柜運行的是否穩定可靠是重中之重，電氣設備在運行的過(guò)程中由于受到高溫、電壓、振動(dòng)以及其他化學(xué)作用，將會(huì )使得其絕緣性能降低，會(huì )產(chǎn)生局部放電現象，同時(shí)又會(huì )加速絕緣的惡化情況，會(huì )給電力系統造成較大的經(jīng)濟損失。但是，由于開(kāi)關(guān)柜內部空間狹小、零件繁多、結構復雜，絕緣距離小，因此比其它電力設備更容易出現絕緣問(wèn)題，從而對設備安全運行帶來(lái)巨大隱患。
At present, the power system has increasingly high requirements for the quality of electricity, not only to ensure stable and reliable power supply, but also to ensure the safety of power supply. In the power system, metal enclosed switchgear is widely used, so the stability and reliability of the switchgear operation is of utmost importance. Electrical equipment, due to high temperature, voltage, vibration, and other chemical effects during operation, will have a reduced insulation performance, resulting in partial discharge and accelerating the deterioration of insulation, causing significant economic losses to the power system. However, due to the narrow internal space, numerous components, complex structure, and small insulation distance of the switchgear, it is more prone to insulation defects than other power equipment, which poses a huge hidden danger to the safe operation of the equipment.
高壓電氣設備的絕緣內部如氣泡間隙、雜質(zhì)、尖刺等問(wèn)題，在強電場(chǎng)作用下使得開(kāi)關(guān)柜絕緣內部的電場(chǎng)分布不均勻，在產(chǎn)生問(wèn)題的部位電場(chǎng)強度會(huì )增加，從而容易導致該部位發(fā)生未貫穿整個(gè)絕緣的放電，即局部放電。
Defects such as bubble gaps, impurities, and spikes in the insulation of high-voltage electrical equipment can cause uneven distribution of electric field inside the switchgear insulation under the action of strong electric fields. The electric field strength at the defect area will increase, which can easily lead to partial discharge that does not penetrate the entire insulation, that is, partial discharge.
局部放電一般不會(huì )引起開(kāi)關(guān)柜內部絕緣的穿透性擊穿，但是卻會(huì )導致絕緣介質(zhì)的局部損壞。若其長(cháng)期存在，則會(huì )在一定條件下造成絕緣裝置電氣強度的破壞，造成開(kāi)關(guān)柜內部絕緣擊穿。因而對于電氣設備而言，電氣設備發(fā)生局部放電現象是導致其絕緣老化或劣化甚至損壞從而引發(fā)設備損毀及電力系統事故的重要原因之一，同時(shí)局部放電也是設備絕緣完整性退化的標志。因此對電氣設備的局部放電進(jìn)行監檢測是評估設備絕緣狀況的重要手段，也是發(fā)現設備潛伏性故障，實(shí)現故障預警，避免故障發(fā)生的有效措施之一。
Partial discharge generally does not cause penetrating breakdown of the insulation inside the switchgear, but it can lead to local damage to the insulation medium. If it exists for a long time, it will cause damage to the electrical strength of the insulation device under certain conditions, ultimately leading to insulation breakdown inside the switchgear. Therefore, for electrical equipment, the occurrence of partial discharge is one of the important reasons for insulation aging, deterioration, and even damage, leading to equipment damage and power system accidents. At the same time, partial discharge is also a sign of equipment insulation integrity degradation. Therefore, monitoring and detecting partial discharge of electrical equipment is an important means to evaluate the insulation status of equipment, and is also one of the effective measures to detect potential faults in equipment, ultimately achieve fault warning, and avoid the occurrence of faults.
APD100局部放電監測裝置通過(guò)檢測伴隨局部放電而產(chǎn)生的電磁波輻射并自動(dòng)確定現場(chǎng)局部放電的實(shí)際檢測頻率，隨后將檢測的局部放電的放電量和放電次數等數據上傳至服務(wù)器。
The APD100 high-voltage switchgear partial discharge monitoring device detects the electromagnetic wave radiation generated along with partial discharge and automatically determines the actual detection frequency of on-site partial discharge. Then, data such as the amount of discharge and the number of discharges of the detected partial discharge are then uploaded to the server.
2 Type Introduction
3 Technical Features
APD100局部放電監測裝置采用導軌（DIN35mm）安裝方式，可安裝在開(kāi)關(guān)柜二次儀表室；特高頻傳感器采用磁吸安裝方式，吸附在開(kāi)關(guān)柜電纜室柜壁。產(chǎn)品詳細尺寸見(jiàn)圖，單位mm。
The APD100 UHF partial discharge detector adopts a guide rail (DIN35mm) installation method and can be installed in the secondary instrument room of the switchgear; The UHF sensor adopts a magnetic suction installation method and is adsorbed on the wall of the switchgear cable room. The detailed dimensions of the product are shown in millimeters.
圖1.1 APD100局放監測裝置
Figure 1.1 APD100 Partial Discharge Detector
圖1.2 APD200局放監測裝置
Figure 1.2 APD200 Partial Discharge Detector
圖1.3 特高頻局放傳感器
Figure 1.3 UHF Sensor
