Capacitor Bank details
Capacitor Bank
- Capacitor bank can be connected in LT or HT side
- In Industries it is connected in HT side due to High rated motors installed and requirement of Reactive power is more.
- Where as in commercial Buildings Capacitor banks of smaller capacities are placed in LT room.
- Why we need Capacitor Bank?
- Capacitor Bank improves power Factor gives Leading PF, helps industry from getting low PF penalties from Electricity Board.
- Reduces losses.
- Improves motor performance.
- P= V I cosวพ, PF inversely proportional to voltage & current.
HT Capacitors in Industrial Sector
- In industries HT Capacitors are used & are placed at Switchyard.
- HT capacitors placed in between Series reactor & Residual voltage Transformer.
- HT capacitor bank rated at 40KV.
- Capacitor bank has single Capacitor unit for each phase (RYB).
- Capacitor bank outgoing connected to Residual voltage transformer and to relays.
HT capacitor
unit
- HT CAPACITOR bank unit consists of parallel combination of capacitors connected inside the unit .
- Generally capacitor connected in Delta formation.
- Capacitors bank are generally considered as load because it consumes power to get capacitor charged and give required power factor , so it is considered as load ..
- Capacitors bank are protected from heavy inrush and from sudden surges . Series reactor and residual voltage Transformer helps capacitor bank from Electrical hazards.
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