CLZ-FP (HD/UHD),, CFB, CQ, CV power capacitors for LV power factor correction
Country: Spain · Model: CLZ-FP (HD/UHD),, CFB, CQ, CV
Power capacitors for low-voltage power factor correction, tubular CLZ-FP units for 0.5–50 kVAr at 50 and 60 Hz, and prismatic, CFB, CQ and CV. They are used to equip fixed compensation and the steps of automatic correction units, and to repair and upgrade existing banks.
- CLZ-FP / CLZ-FPT HD, UHD
- tubular three-phase, dry, nitrogen cooled; 0.5–50 kVAr; 50/60 Hz
- CLZ: overload
- up to 1.8 In (inrush current 400 In)
- CLZ: insulation
- 3/12 kV; max. +65 °C, min. −50 °C
- prismatic, 60 % longer life than the previous CS; 400 V: 20 kVAr (50 Hz) / 25 kVAr (60 Hz); IP42 with cover
Technical specifications
| CLZ-FP / CLZ-FPT HD, UHD | tubular three-phase, dry, nitrogen cooled; 0.5–50 kVAr; 50/60 Hz |
|---|---|
| CLZ: overload | up to 1.8 In (inrush current 400 In) |
| CLZ: insulation | 3/12 kV; max. +65 °C, min. −50 °C |
| prismatic, 60 % longer life than the previous CS; 400 V: 20 kVAr (50 Hz) / 25 kVAr (60 Hz); IP42 with cover | |
| CFB | prismatic for filter steps (e.g. CFB-46/100-6B — 100 kVAr at 440 V with reactor RBEZ-80-400) |
| CQ / CV | capacitors 400–440 V |
| Losses | dielectric < 0.2 W/kVAr; total < 0.4–0.5 W/kVAr |
| Discharge | 50 V / 1 min or 75 V / 3 min |
| Overvoltage | 10 % 8 h/day … 30 % 1 min |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The three-phase dry CLZ-FP and CLZ-FPT of the Heavy Duty series are designed for long service under heating and in severe conditions, a UHD version exists for the most demanding installations, and they are cooled by inert non-flammable nitrogen. CLZ has an insulation level of 3/12 kV, a capacitance tolerance of −5…+10 %, dielectric losses below 0.2 W/kVAr and total losses below 0.4 W/kVAr. The inrush current reaches 400 In, overload 1.8 In, class D covers the range from −50 to +65 °C, and they can be installed vertically or horizontally with a gap of at least 2 cm. The manufacturer has replaced the classic prismatic CS, the service life has grown by more than 60 %, and adapters are made for replacing CS and CF. CSB-40/20 at 400 V delivers 20 kVAr at 50 Hz and 25 kVAr at 60 Hz, and has 3/15 kV insulation, a tolerance of −5…+15 %, overload of 1.3 In, a painted steel case RAL 3005 and IP42 with a terminal cover. CFB with total losses below 0.5 W/kVAr are matched with RBEZ reactors, and CQ and CV for 400–440 V serve standard tasks.
How to choose
For hot cabinets and heavy duty take CLZ-FP HD, for extreme conditions UHD, and for an ordinary installation CQ or CV is enough. A filter step is assembled from CFB and a reactor, and CFB-46/100-6B for 100 kVAr at 440 V together with RBEZ-80-400 gives 80 kVAr in a 400 V network. Sharp load jumps are better compensated by the SVGm static generator (modules 30–100 kVAr, response under 100 µs).
Request a price and lead time
CLZ-FP (HD/UHD),, CFB, CQ, CV power capacitors for LV power factor correction. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What overvoltages do low-voltage power factor correction capacitors withstand?
An excess of 10 % is permissible for 8 h per day, 15 % for up to 15–30 min, 20 % for up to 5 min and 30 % for up to 1 min.
How many kVAr does a 440 V capacitor give in a 400 V network?
Less than the rating. CLZ-FPT-44/3.75-HD has 3.75 kVAr at 440 V and 3 kVAr at 400 V, so the step is calculated for the actual voltage.
How fast does a CLZ capacitor discharge after switch-off?
Models for 0.5–30 kVAr discharge to 50 V in 1 min, models for 33–50 kVAr to 75 V in 3 min.
Why is there nitrogen in the tubular CLZ-FP capacitors?
Nitrogen cools the dry capacitor from the inside, and as an inert non-flammable gas it does not support combustion in the case.
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