Electrical -- Power Systems

Reactive Compensation Sizing

Capacitor bank and STATCOM sizing with harmonic resonance, switching transients, and C0/C1/C2 outrush analysis. IEEE 18, IEEE 1547, NERC VAR-001/002.

Universal reactive compensation sizing tool. 10%/30% thresholds common in solar/wind interconnection agreements.

System Parameters

System Voltage kV

System Frequency

Generator / Inverter Capacity MW

Compensation Target

Power Factor Settings

Current / Initial Power Factor

Target Power Factor

Night Mode (gen = 0)

Generator / Inverter Reactive Range

Max leading reactive (absorbing) MVAR

Max lagging reactive (supplying) MVAR

Short Circuit Data

Short-Circuit MVA at Bus From short circuit study

Network Impedance at POI

Network reactance (X) -- Ohm

Alt: reactance -- pu pu Enter X in Ohm or pu -- one is required

Existing Reactive Devices on Bus

Existing MVAR (+ve = supplying) Positive = existing cap banks; negative = existing reactors

Existing Capacitor Bank

Existing Cap Bank (MVAR) For back-to-back switching calc

Breaker & Switching

Capacitor Bank Step Size Standard sizes: 5, 10, 15, 20, 25, 30 MVAR

Bank Type

Reactor Available for Over-voltage Control

No Yes

Breaker & Switching

Breaker Class

Breaker Interrupting Rating kA

Bus Inductance (cap bank to fault) uH

Reactive Compensation Report
Run the calculator to see results