High voltage automatic reactive power compensation device

Specifications

Application
The shunt capacitor is suitable for the power system of power frequency (50 or 60Hz), to increase the power factor, reduce line loss,improve voltage quality.
Main Technical Parameter
1. The relative error between capacitance and rating shall not exceed -5%~+5% or capacitor unit.
2. For the three-phase capacitor, the ratio of maxi and minimum capacitances between any two phase terminals shall not exceed 1.08.
3. For the full film capacitor, Tangent of capacitor loss angle shall not exceed 0.0005, for the film and paper mixed capacitor, it shall not exceed 0.0012
4. Each capacitor shall withstand alternating U = 2.15U or DC voltage Ut = 4.3U voltage between terminals, test duration 10s, it shall have no break t N n own and flashover.
5. AC voltage test between terminal and shell: all capacitors whose all terminals insulated from outer shell shall comply with the requirement of clause 18.1 in the standard of GB/711024.1-2010: during test, no breakdown and flashover shall happen.
6. Power frequency steady over-voltage and its running time of capacitor and the elements shall comply with sheet 2. In order to extend the working life,the capacitor shall run under voltage not over ratings.
7. The capacitor is allowed to work under not over 1.3I steady over-current for long time which caused by rising voltage and high harmonics, for the capacitor with maxi positive deviation, the permissible current up to 1.37I . In order to extend the service life, the capacitor shall work under rated current. n
8. The capacitor can withstand the surge up to 100 times of rated current, the times of such surging impact shall not exceed 1000, among these, some of surging impact shall happen at the capacitor inside temperature not more than 0°C.
9. The capacitor with built-in resistance, can discharge automatically and the voltage between terminals shall fall down to 75V or lower within 10 minutes.
10. High voltage shunt capacitor (more than 1000V) complies with national standard GB/T11024.1-2010 (eqv. IEC871-1)