LT PanelsAPFCDetuned0.99
Capacitor Panel
Automatic power-factor correction that holds the target PF as load changes, with detuned reactors where the site has harmonics.
Rating plate
Capacitor Panel
- Compliance
- IS/IEC 61439-1 & 61439-2
- Supply system
- 415 V, 3 phase 4 wire, 50 Hz
- Rated insulation voltage
- 690 V
- Ambient temperature
- 45 °C
- Bank rating
- 25 kVAr to 1000 kVAr
- Steps
- 6, 8, 12 or 14 stage
- Switching
- Contactor or thyristor (fast, for welding loads)
- Detuning
- 7% or 14% reactor, for harmonic-rich supplies
- Capacitors
- APP / MPP, heavy-duty, IS 13340
- Target power factor
- 0.95 to 0.99 lag
- Degree of protection
- IP42 to IP54
Specifying this panel
An APFC relay measures the incoming power factor and switches capacitor steps in and out to hold the target. It pays for itself out of the utility's PF penalty, usually inside two years.
If the site has VFDs, UPS or welding sets, specify detuned reactors. Plain capacitors on a harmonic-rich bus resonate, and the failure mode is a burst capacitor rather than a poor power factor.
Thyristor switching is worth the premium only where load steps are faster than a contactor can follow — press shops, spot welding, crane duty.
Built for
- Factories under utility PF penalty
- Welding and press shops
- Pumping stations
- Commercial buildings with large HVAC load
Fitted with
The assembly is ours; the switchgear inside it is genuine, authorised-channel product from the makes you specify.
LT Panels
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Built to the same standard, and able to share a lineup with this one.
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Next step
Send us the single-line.
A drawing, a load list or a BOQ is enough to start. You'll get the ratings checked against the actual fault level, a general-arrangement drawing to approve, and a fixed price.