Product introduction
SVQR pressure adjustable reactive power substation reactive power automatic compensation device breaks through the switch packet switched capacitor circuit breaker, vacuum contactor etc. the traditional reactive power compensation. The new train of thought, the principle is proportional to the square of the output capacitor in the reactive power compensation of capacitive reactive power and terminal voltage, voltage to change fixed capacitors by controlling the output of voltage regulator, so as to achieve the purpose of reactive power compensation fine. The device is small, without the impact of inrush current and high reliability, all-weather access to the grid, greatly improving the utilization rate of the equipment, the power factor can maintain substation high, reduce system losses and improve the carrying capacity of main transformer, voltage stabilization system, meet the requirement of unattended substation.
The product not only can be widely used in the new substation, but also to upgrade the existing substation, the original TBB compensation device is upgraded to a nine level of compensation for reactive power automatic compensation equipment. The product is now widely used in rural power network, city network, oil, coal, metallurgy, chemical and other fields.
Main technical features
1 reactive power compensation method is novel, advanced technology. Break through the switch capacitor circuit breaker, vacuum contactor etc. the traditional reactive power compensation, puts forward a new idea, through the voltage regulator change fixed capacitor reactive power compensation, fine;
2 reactive power compensation fine, a single SVQR can achieve 9 level without compensation, high utilization rate of the reactive power compensation equipment, tracking controller of substation load, reactive power automatic control equipment output, the substation power factor is maintained at a high level, and greatly reduces the possibility of no merit compensation device in which the network back;
The capacitor terminal voltage and reactive power output table under SVQR
3,complete sets of device loss is small, less than 0.3%, and the device itself does not produce harmonic;
4,The pair of capacitors or substation shock pressure regulator is extremely small, only a few hundred volts per shift differential capacitor, and off the net, gear transition smoothly, improve the service life of equipment;
5,optional switch automatic oil filter, switch oil cycle greatly extended;
6,The is especially suitable for the transformation of the old station, the original capacitance and reactance, discharge coil and other equipment can be used only by adding a pressure regulator and control panel can be fixed to the original compensation device and automatic compensation device;
7,controller independent development, using DSP high-speed digital processing chip, powerful, strong anti-interference ability;
8,has a complete communication and data storage capabilities. Can collect real-time data and record three months of historical operation data, through the wireless communication module, GPRS and other communication methods, can achieve data transmission, local and remote monitoring;
9,safe and reliable operation.
Main technical parameters
1 voltage level: 6kV, 10kV, 35kV;
2 capacity: 630kvar ~ 6000kvar (6kV), 630kvar ~ 12500kvar (10kV), 1000kvar ~ 36000kvar (35kV) (), ~ ();
3 compensation series: 9;
4 reactive power regulation range: 36% ~ 100%;
5 control system: DSP full digital control system;
6 control mode: automatic;
7 installation methods: outdoor, outdoor, box change.
Composition structure
SVQR pressure adjustable reactive power substation reactive power automatic compensation device mainly comprises a first part and the two part is composed of two parts. A system diagram of the device is as follows:
Schematic diagram of SVQR composition principle
One part includes: the isolation switch (QS) and autotransformer (T), lightning arrester (FA), series reactor (L) (in applications, harmonic serious should be in auto regulation between the regulator and a capacitor in series reactor reactance rate, power capacitor (C)), discharge coil (TV). Among them, in the old station renovation project, circuit breaker, isolating switch, lightning arrester, power capacitor, series reactor, discharge coil can use the original equipment of the transformer substation. The two part: control panel (including controller).
