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    Pole Mounted Capacitor Banks | Elgin Power Solutions
    35kV capacitor banks with group compensation are medium-to-high voltage systems used in power grids (like industrial setups or transmission lines) to inject reactive power (VARs) locally, improving power factor, stabilizing voltage, reducing losses, and increasing system capacity by offsetting inductive loads from motors and other equipment, often with automatic switching (APFC) for fluctuating loads or fixed banks for steady ones, ensuring efficient power delivery and lower energy costs .
    Key Aspects:
    • Purpose : To provide reactive power compensation, stabilize voltage, improve power factor (cosφ), and reduce energy losses in 35kV systems.
    • Voltage Level : Rated for 35kV, suitable for medium-high voltage applications.
    • Compensation Type :
      • Group Compensation : Capacitors are grouped and switched together, often in stages, to match varying load demands.
      • Automatic (APFC) : Uses controllers to automatically switch capacitor steps, ideal for fluctuating loads like factories.
      • Fixed : Simple, cost-effective for constant loads, but requires manual switching.
    • Components : Include capacitor units (series/parallel), fuses, reactors (to prevent resonance), switching gear, and protection relays.
    • Benefits : Voltage support, increased transformer/feeder capacity, reduced line losses, better overall efficiency, and lower utility charges.
    • Application : Common in industrial plants, substations, and transmission networks with significant motor loads or long lines.
    How it Works (Group Compensation):
    1. Inductive Load : Motors and other devices draw reactive power (inductive VARs), lagging the voltage.
    2. Capacitor Bank : The bank provides capacitive VARs, which lead the voltage, counteracting the inductive effect.
    3. Stepped Compensation : Instead of one large bank, smaller capacitor groups (steps) are switched in or out as needed by the load, preventing over-correction and maintaining optimal power factor.
    In essence, these systems deliver the "missing" reactive power right where it's needed, improving the power system's performance and efficiency.
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    • Capacitor Banks | Reliable Reactive Power Compensation
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    • 35kV-110kV High Voltage Shunt Capacitor Bank With Large Capacity
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      www.rockwill.com
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