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FACT SHEET

POOR POWER FACTOR REPRESENTS HIGHER ELECTRICITY DEMAND

Most Electricity supply companies in Australia are now charging a KVA demand tariff in addition to KWH tariff, which could result in higher electricity charges for the customer. In addition, supply companies also prescribe by regulation minimum power factor levels for customer installations.

KVA demand is directly related to the Power Factor of the electrical - electronic equipment installed. Some Electrical equipment has poor Power Factor. For example, SCR – Thyristor controlled rectifiers. When the output voltage is reduced from the rated output, the Power Factor changes to very Poor, possibly down to 0.25.

KVA demand increases as the Power Factor decreases, say from very good, PF 0.95 down to a very poor PF 0.25

So if possible buy electrical equipment that has a very Good Power Factor, which is normally between 0.90 to 0.95 and which is maintained between these two levels, especially when the output voltage of the rectifier is reduced. This will keep the KVA tariff costs lower, ensure the installation complies with regulations and possibly avoid having to purchase costly Power Factor correction equipment.

Click Iogo [below] for Victorian Government pdf fact sheet.

Sustainable Energy Authority Victoria (SEAV)

EMC COMPLIANCE "C-Tick" A MANDATORY REQUIREMENT

It is now a mandatory requirement of the Australian Communications and Media Authority, (ACMA) for most electrical - electronic products supplied into Australia to meet EMC Compliance. This is for products that are manufactured in or imported into Australia, for them to be EMC Compliant.

The purpose of this regulation is to minimise electromagnetic interference between electrical - electronic products which may diminish the performance of other electrical products or disrupt essential communications.
Compliance is noted by the C-tick symbol being present on the device.

For more information go to the Australian Government web site of:
Australian Communications and Media Authority – EMC Index Page

AC SUPPLY VOLTAGE RATINGS IN AUSTRALIA HAVE BEEN LOWERED

The nominal mains input supply voltage in Australia in accordance
with AS 60038 is now

230 volts AC Single phase with a tolerance range of + 10% to - 6%
400 volts AC Three phase with a tolerance range of + 10% to - 6%

All Australian Rectifier’s electrical equipment, supplied to our customers
complies with this new Voltage and tolerance requirement and our electrical equipment works equally as well, with the older higher voltage range,
ensuring the output of equipment is maintained.

The old obsolete Australian Standard AS 2926 was
240 Volts AC Single phase + 6%
415 Volts AC Three phase + 6%

© copyright 2005 Australian Rectifiers Pty Ltd