Capacitor Banks

About

What is a capacitor bank (APFC)? A capacitor bank (Automatic Power Factor Correction, APFC) is a multi-step assembly of BSMJ shunt capacitors switched in / out by an intelligent controller (JKW5C) to maintain a target power factor (typically 0.95+). Pakistani factories above 50 kW load install APFC banks to eliminate NEPRA maximum-demand (MD) penalties — payback typically 2–3 months. Built to IEC 60831-1 (capacitors) + IEC 61921 (capacitor-bank assemblies). Bank size Steps Suitable load 40 kvar (1×25 + 1×15) 2-step 50 kW factory 90 kvar (1×50 + 1×25 + 1×15) 3-step 100 kW factory 200 kvar (3×50 + 2×25) 5-step automatic 200 kW commercial tower For component-level sizing math + NEPRA penalty calculations see the PFC capacitor buyer guide . Updated: June 10, 2026 · CNC Electric Pakistan Capacitor Bank + Power Factor Guides (Updated June 10, 2026) Power Factor Capacitor Bank Buyer Guide VFD Variable Frequency Drive Buyer Guide Magnetic Contactor Buying Guide Switch Board + MCC Buyer Guide MCCB + ACB Industrial Factory Switchgear Best Electrical Equipment Tiers Pakistan 2026 Cable Tray IEC 61537 Buyer Guide Cable Lugs + Crimping IEC 61238 Capacitor Bank — Pakistan Quick Answer (May 2026) A capacitor bank in Pakistan corrects poor power factor in industrial and commercial installations — reducing reactive power demand, lowering WAPDA bill penalties, and freeing up transformer capacity. Without PF correction, a factory drawing 100 kW at 0.7 PF appears as 143 kVA on the meter (PEPCO charges for kVA). After installing a capacitor bank to bring PF to 0.95, the same load appears as 105 kVA — saving 26% on demand charges. CNC 2026 prices range from Rs. 12,500 (5 kVAR fixed bank) to Rs. 185,000 (100 kVAR automatic bank with controller) . Factory Load Recommended Capacitor Bank Type 2026 PKR Small shop, 10-15 kW load 5 kVAR fixed bank Manual fixed 12,500 Medium workshop, 20-30 kW 10 kVAR fixed Manual fixed 22,000 Small factory, 40-60 kW 20 kVAR auto bank (3-step) Automatic with PF