Power factor correction

Connected equipment (transformers, motors, air-conditioning, refrigerators, etc.) cause a phase angle between current and voltage.When the current is phase-shifted, it takes more current to deliver the same amount of active power.

Impact of reactive power

• Transmission equipment has to be sized for the apparent power, yet only active power is useful

• Increased losses in the network

• You pay for apparent power but use active power (higher electricity bill)

• Penalty fees to customers with a low power factor (example < 0.95)

Applications

• Power consumers, network operators, power supplies, power industry,hospitals, offices, public buildings, factories.

ZDDQ Solutions

The power factor of a facility can be improved by installing capacitor banks

•Low voltage capacitor banks

•Medium voltage capacitor banks

•low voltage static var generator

•Medium voltage STATCOM

Harmonic filtering

Variable speed drives (process industries, lifts, air conditioning pumps, etc.), uninterruptible power supplies for computers, electronic equipment, etc. distort the current (introduce harmonics).

Impact of harmonics on transmission / distribution equipment

Additional losses (paid for by the end user)
• Heating in power cables
• Audible noise (transformers)
• Penalty fees to customers with a low power factor (example < 0.95)

Impact of harmonics on equipment connected
• Decreased machine efficiency
• Costly process shutdowns
• Disturbed electronic equipment (computers, telephones)

Applications

Power consumers, network operators, power supplies, power industry

ZDDQ Solutions
•Filter capacitor banks

•Active Power filters

•Passive filters

Power compensation brings

Economic benefits