1. General Description
Assembled shunt capacitors are mainly used in 6kV, 10kV, 35kV, 66kV frequency power system for reactive power compensation, which could improves the power factor of a power grid, reduce power loss and stabilize voltage. Thus the eciency of power generation, supply and equipment are improved.
The advantages of shunt capacitor are: anti-explosion, antire, safe & reliable, small footprint, easy installation and maintenance, high commissioning rate and low operation cost.It is especially suitable for updating urban power grid and compensation for large scale transformer substation.
2. Technical Data
2.1 supplied according to customers’ request. Three-phase capacitors are star congurations.
The voltage of each phase is: 6.6/3 kV；11/3 kV；38/3 kV；72/3 kV.
2.2 Rated frequency: 50Hz
2.3 Rated capacity: From 500kvar to 10000kvar for each.
2.4 Phase:
Single phase or three-phase (35kV or above must be single phase; 3 capacitors as a group for usage)
2.5 Operation environment requirement:
- Not higher than 1000m altitude.
- Temperature:
a. Standard product: -25℃～40℃
b.Low temperature resisting product: -40℃～40℃
- Earthquake resistant: Horizontal direction 0.25g, vertical direction 0.125g.
- No gas or steam with severe corrosion to metal, no conductive dust and no severe mechanical vibration.
2.6 Capacitance deviation: compared with rated capacitance
0～+5%; capacitance among three phases ≤1.02.
2.7 Loss tangent: no more than 0.0005.
3. Applicable Standards
GB/T11024-2010 National Standard 《Rated voltage 1kV or above shunt capacitors for AC power systems》
JB7112-2000 Machinery Industry Standard《Assembled HV Shunt Capacitor》
DL/T628-1997 Electric Power Industry Standard《Assembled HV Shunt Capacitor Ordering Technical Requirement》
