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High voltage reactive power compensation device
High voltage reactive power compensation device is mainly composed of parallel capacitor, capacitor dedicated fuse, series reactor, discharge coil, current transformer, zinc oxide arrester, isolating grounding switch, post insulator, connecting bus, etc.
Primary wiring and protection method: capacitors usually adopt the star wiring. Protection of capacitors is usually classified into: first-class protection: internal fuse and external fuse protection; second-class protection (relay protection): open-delta voltage protection, current quick-break and overcurrent protection, etc.
In the past, compensation was realized by using the fixed capacitor bank. This easily causes excessive compensation at the time of electricity trough and mismatching between the capacitor bank and the system when changes occur to the electrical devices, and even makes the grid voltage rise to a dangerous value. The high voltage automatic switching reactive power compensation device separates the fixed compensation capacitor bank into several banks and can automatically switch on a certain number of capacitor banks according to the power factor and voltage of the grid system. This device adopts the high-reliability controller as the core control device and adopts the vacuum contactor to switch on capacitor banks to switch on several capacitor banks in a cyclic way, so as to optimize the reactive power compensation device.
Primary wiring and protection method: capacitors usually adopt the star wiring. Protection of capacitors is usually classified into: first-class protection: internal fuse and external fuse protection; second-class protection (relay protection): open-delta voltage protection, current quick-break and overcurrent protection, etc.
In the past, compensation was realized by using the fixed capacitor bank. This easily causes excessive compensation at the time of electricity trough and mismatching between the capacitor bank and the system when changes occur to the electrical devices, and even makes the grid voltage rise to a dangerous value. The high voltage automatic switching reactive power compensation device separates the fixed compensation capacitor bank into several banks and can automatically switch on a certain number of capacitor banks according to the power factor and voltage of the grid system. This device adopts the high-reliability controller as the core control device and adopts the vacuum contactor to switch on capacitor banks to switch on several capacitor banks in a cyclic way, so as to optimize the reactive power compensation device.
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高压无功补偿装置
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Model description
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