10kV Capacitors Medium Voltage Capacitor Improve Power Factor 200
kVar Capacitor Bank
1.Overview of High Voltage Shunt Capacitor
The shunt capacitor is composed of a pack, a case, an outlet
porcelain busing, etc. The two sides of stainless steel case are
welded with hanging brackets for installation, and one hanging
bracket is equipped with a grounding bolt. In order to adapt to
various voltages, the pack is composed of several small elements
connected in parallel and series. The capacitor is equipped with a
discharge resistor.
2. Function
Medium voltage shunt capacitor/High
voltage shunt capacitor are suitable for 50Hz or 60Hz AC power
systems to improve the power factor of the power system, reduce
line losses, improve the quality of the power supply voltage, and
increase the active output of the transformer.
Rated voltage | 0.5~5kV Special specifications can be negotiated . |
Rated frequency | 50Hz;60Hz |
Rated Capacity | 25~1080 kVar |
Insulation level | 38/95kV, 70/150kV |
Protection method | Internal fuse or external fuse |
Number of phases | Single-phase or three-phase |
Capacitance deviation | -3%~+5% |
Package | Export standard packing |
Loss tangent value (tanδ) | ≤0.0002 |
Discharge resistance | The capacitor is equipped with a discharging resistor. After being
disconnected from the grid, the voltage on the terminal can drop
below 50V within 5 minutes |
3. Main features
- 3.1 Casing: Cold-pressed, anti-fouling type casing is adopted, and
the creepage distance is not less than 31mm/kV.
- 3.2 Mature internal fuse technology.
- 3.2.1 After testing, the internal fuse can isolate the faulty
component within 0.2ms, the release energy of the fault point is
not more than 0.3kJ, and the remaining intact components are not
affected.
- 3.2.2 Advanced concealed internal fuse structure, using oil gap arc
extinguishing, reducing the possibility of blasting the capacitor
case.
- 3.2.3 The internal fuse protection and relay protection have
perfect coordination standards to ensure the safe and reliable
operation of the entire device.
- 3.3 Liquid medium: 100% insulation oil (NO PCB) is used. This
liquid has excellent low temperature performance and partial
discharge performance.
- 3.4 The main insulation adopts a composite insulation structure,
which not only guarantees excellent electrical performance, but
also has a certain degree of mechanical strength, which ensures
that the insulation of the capacitor complete set of devices is
100% reliable without protection.
- 3.5 Good sealing performance: The annual leakage rate is less than
0.1%, and the sealing performance of the capacitor is guaranteed
through measures such as automatic argon arc welding, vacuum leak
testing, and thermal aging.
- 3.6 Partial discharge level: the extinguishing voltage is not less
than 1.5Un, and each capacitor is tested for partial discharge
during production.
4. Applicable standard
IEC60871 and equivalent standard
5.Conditions of Operation
- 5.1 Applicable for indoor and outdoor
- 5.2The altitude of the installation site generally does not exceed
2000 meters
- 5.3Temperature category: -40/D
- 5.4There is no gas or steam that is severely corrosive to metals.
- 5.5No strong mechanical vibration
6. Customized service is provided for each specific evironment and
power system