POWER CAPACITORS

 natural or forced

Cooling

-40/D; ,max. temp. 55 C, max. mean 24 h = 45 C
max. mean 1 year = 35 C; lowest temperature= -40 C

Ambient temperature

up to  115 000 h

t LD(Co)

Mean life expectancy

up to VR < 660V: 3000VAC, 10s, above VR = 660V: 6000VAC, 10s

VTC

Test voltage, terminal/case

2.15 * VR1, AC, 10 s

VTT

Test voltage, terminal/terminal

-5% / +10%

Capacitance tolerance

50/60 Hz

f

Rated Frequency

< 0.2 W/kavr
< 0.45W/kvar

Losses:
-Dielectric
- Total

up to 200 * IR

Is

Inrush current

1.3* IR (including combined effects of harmonics, overvoltages and capacitance tolerance)

Imax

Overcurrent

VR +10% (up to 8h daily) / VR + 15% (up to 30 min daily) /
VR +20% (up to 5 min daily) / VR + 30% (up to 1 min daily)

Vmax

Overvoltage

  • Country:South Africa
  • telephone:27-27-11-746-6800
POWER CAPACITORS
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