How do I size an APFC panel?

Share your connected load, present and target power factor, or a recent electricity bill. We work out the kVAR rating and the number of steps.

Can APFC be built into my main LT panel?

Yes. We build distribution-cum-APFC panels and DG-plus-mains panels with an APFC section in the same line-up.

Power Factor & Generator Panels

APFC Panel

Automatic power factor correction panels that switch capacitor banks in steps to hold your power factor near the target and help avoid utility penalties.

Capacity: Sized in kVAR to your load, e.g. 200 or 400 kVAR
Control: Automatic, APFC relay with step switching
Busbar: Aluminium, e.g. 800 A
Operating voltage: 380 / 415 / 440 V AC, 3-phase, 4-wire

Overview

Inductive loads such as motors, pumps and compressors pull your power factor down. That raises your kVA demand and can attract penalties from the electricity utility. An automatic power factor correction (APFC) panel measures power factor continuously and switches capacitor banks in and out, step by step, to keep it close to the target.

We build standalone APFC panels and combined distribution-cum-APFC panels, sized in kVAR to your connected load and number of switching steps.

Key features

APFC relay with automatic step switching
Capacitor banks in multiple steps, with capacitor-duty contactors
Ventilation louvres, and exhaust fans where required
Indoor or outdoor enclosures up to IP55
Can be combined with distribution or DG panels in one line-up

Technical specifications

Typical ratings. Every panel is built to your BOQ.
Parameter	Value
Capacity	Sized in kVAR to your load, e.g. 200 or 400 kVAR
Control	Automatic, APFC relay with step switching
Busbar	Aluminium, e.g. 800 A
Operating voltage	380 / 415 / 440 V AC, 3-phase, 4-wire
Frequency	50 Hz
Short-circuit rating	Up to 50 kA for 1 s (CPRI-tested); higher on request
Degree of protection	Up to IP55 (CPRI-tested)
Internal separation	Up to Form 4
Sheet steel	CRCA, 2 mm or 1.6 mm as specified
Surface finish	7-tank pre-treatment, powder coated up to 100 microns
Busbars	Aluminium, TPN, rated to the load
Standard	IS/IEC 61439-1 and 61439-2