It is applied to the reactive power compensation system. The reactor is used in series with the capacitor to compensate the reactive power in the power grid and improve the power factor. The reactor and the shunt capacitor tuning can filter the specific frequency harmonics, and the reactor has the function of suppressing the closing inrush and protecting the capacitance.
The transformer selects the high quality silicon steel sheet and the advanced vacuum lacquer and the European production technology. The product has the power of energy saving, low loss, low noise, shock resistance and short circuit resistance. The advantages of strong overload capacity, compact structure, small size, convenient installation, etc.
Aneutral grounding resistor is composed of enclosure, resistors, disconnecting switch, CT, heater, lightning arrester, etc. The primary purpose of a Neutral Grounding Resistor (NGR) is to limit the fault current already present in a single line to ground fault. That is why NGRs are mostly employed in low and medium voltage (LV and MV) distribution networks to ensure generators and transformers remain protected from damaging currents in the event of an earth fault.
At present, China has a lot of power distribution network using a neutral point resistance grounding runs. After installing the neutral grounding resistor cabinet, when the occurrence of non-metallic grounded affected ground resistance, and the current flowing through the ground than the neutral point earthed metallic significantly reduced, while the sound phase voltage rises too significantly reduced, zero- sequence voltage value is about half of the single-phase metallic grounded. Thus, the use of resistance grounded neutral point, single-phase ground can be reduced when transient over-voltage and over-voltage arc grounding eliminate some resonance over-voltage, and can use a simple protection devices quickly select the fault line, cut point of failure.
|
Technical Darameters
|
|
Generator capacity (MW)
|
|
){kind=link}