MV PFC capacitors & PFC key components
Vacuum contactors
- Encapsulated vacuum interrupter with high dielectric strength and reliability
- Choice of solenoid or mechanical latched type mechanism
- Capable of operation from 70 to 120% of rated voltage of operating coil
- Highly efficient in capacitor switching and DC switching applications
- No arc produced is exposed to atmosphere, hence no fire hazard
- Maintenance free electrical contacts
- Compact footprints to save panel space
- Long electrical and mechanical life
- Rated voltage VR: 6.6/11 kV
- High system voltage: 7.2/12 kV
- Rated frequency fR: 50/60 Hz
- Basic insulation level:
for 6.6 kV rating – 20 kV AC / 60 kV peak
for 11 kV rating – 28 kV AC / 75 kV peak - Number of poles: 3, 2, 1
- Rated current: 400 A
- Rated motor switching current: 400 A
- Rated single bank capacitor switching current: 100/200 A
- Rated short time current: 10 kA / 1 s
- Peak making current: 25 kA peak
- Electrical endurance: 100 000 operations
- Mechanical endurance: 250 000 operations
- Mechanism: solenoid / mechanical latch
- Specifications: IEC 62271
MV capacitor switches
- Light weight, can be mounted on single or double pole structure
- Eco friendly and high power switching capacity
- Offers various power interface, control and protection options to meet various customized application needs
- The core of capacitor switch is a specially designed vacuum contactor suitable for capacitor switching
- The switch comprises of vacuum contactor and other associated equipment for measuring
- Current transformer, potential transformer, auxiliary transformer etc., depending on the specific application requirement
- Rated voltage VR: 11 kV
- High system voltage: 12 kV
- Rated frequency fR: 50 Hz
- Number of phases: 3
- Basic insulation level: 28 kV AC, 75 kV peak
- Rated current: 400 A
- Rated single bank capacitor switching current: 100/200 A
- Rated short time current: 10 kA / 1 s
- Peak making current: 25 kA peak
- Electrical endurance: 100 000 operations
- Mechanical endurance: 100 000 operations
- Mechanism: solenoid
- Controller type: single-step or multi-step
- Installation: outdoor/indoor
- Mounting type: pole mounted, elevating structure, plinth structure mounted
- Power interface: 6, 7, 9 bushing
- Indication: switch on/off
- Specifications: IS:9920:85
MV capacitors
- Extended foil design
- Low energy consumption
- Available in stainless steel (SS304/ SS409) or mild steel containers (CRCA)
- Available with internal/external fuses
- Banking: star, delta, double star
- Welded/soldered bushings
- Selected ratings in non ceramic bushings
- Special designs for harmonic filtering
- Rated voltage VR: 1 … 33 kV
- Rated power QR: 50 … 1000 kvar in single unit
- Rated frequency fR: 50/60 Hz
- Number of bushings:
1, 2 (single-phase)
3, 4 (three-phase) - Installation: outdoor/indoor
- Temperature class: –20 … +55 °C
- Fuse: internat/external
- Specifications: IEC 60871, IS 13925
- Configuration: 1Φ, 3Φ(D), 3Φ(Y)
- BIL: 20 ... 170 kV
MV surge capcitors
- Extended foil design
- Low energy consumption
- Available in stainless steel (SS304/ SS409) or mild steel (CDCA) container
- Specially designed capacitor in series with a non-inductive resistor
- Rated capacitance: 0.05 … 1 μF
- Rated voltage VR: from 1 … 40 kV
- Number of phases: 1, 3
- Number of bushings: 1, 2, 3
- Temperature class: –5 … +55 °C
- Installation: outdoor/indoor
- Specifications: IS 11548
- RC time constant: 1 … 10 μs
- Configuration: 1Φ, 3Φ(D), 3Φ(Y)
