1.Power frequency voltage caused by capacitance effects weaken the no-load or light load long line has increased
(1) the voltage increase is due to no-load or light load, the line capacitance (of low capacitance and capacitive coupling) drop the current in the circuit inductance on the cause, it will make the line voltage is higher than the supply voltage. When the more serious, usually the longer lines, then the capacitance effect of the larger, higher frequency voltage is also greater;
(2) of EHV long transmission line, the no-load or light load line capacitor charging power is great, often charging power as a dramatic increase in voltage levels,charging power huge except the power frequency voltage rise, there will be increasing the power lines and power loss and cause self excitation, earlierdifficulties. The installation of shunt reactors can compensate for this part of the charging power.
2. To improve the voltage distribution along the lines and light load reactive power distribution and reduce line losses
When the power transmission lines is not equal to the natural power, then at each point along the voltage deviation, and sometimes even deviate from the larger, such as relying on shunt reactor compensation, it can get higher Yang low line voltage.
3 reduce the arc current, accelerate the arc extinguished arc line, improve theautomatic reclosing success rate
(1) the so-called arc current, refers to when the single-phase instantaneousgrounding fault, open on both sides of the fault phase fault, residual currentfailure point arc in the existence of;
(2) the causes of secondary arc current of the fault phase is: to cut off the power supply, but due to the non fault phase still charged operation, the effect of interphase capacitance, two relative fault of capacitive power supply; the effect of interphase transformer, fault phase will be to induce a potential, this potentialunder the action of the the fault point and relative capacitance will form acirculation, usually take the sum of the two part of the current known as thesecondary arc current. Secondary arc current existence, which makes the systemarc the single-phase instantaneous short circuit to ground is unlikely soonextinguished, will affect the comprehensive automatic brake single-phasesuccess rate;
(3) neutral shunt reactor via small resistance grounding method to compensate for the arc current, so as to speed up the pace of the secondary arc extinction.
4. Conducive to the elimination of self excitation generator
When the synchronous generator with capacitive load (long distance transmission line no-load or light load operation), the voltage will generatorestablished spontaneously without corresponding to the excitation current of the generator, the generator self excitation, the system voltage rises, the long distance high voltage line access shunt reactor, can change the line the generator end export impedance, effectively prevent the generator self excitation.
Insulation: dry type reactor
There is no iron: iron core reactor
Product certification: CE
Use: shunt reactor
Rated current: 63.5 (A)
The system rated voltage: 10 (KV)
Model No.: BKSC-200/10-6
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Brand:Satons
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