Power Systems International - Frequency Converters, DC Power Systems, UPS Systems, Line Drop Compensation Equipment, Voltage Regulators and Harmonics

Power Systems International's solid state industrial frequency converters are supplied with 400Hz output or with 60Hz output for point-of-use application in laboratories, avionics repair workshops, hangars and for aircraft ground power in military locations and civil airports.

Power Systems International also provide:

• Uninterruptible Power Systems (UPS) for airport power applications
• Line drop compensation equipment
• Automatic harmonics and power factor correction equipment

We also supply DC systems for helicopter starting, battery charging and for auxiliary generator starting duty for hangars, repair workshops for apron use and for offshore helipads and landing platforms.

UPS (UNINTERRUPTIBLE POWER SUPPLY) SYSTEMS FOR EMERGENCY / RUNWAY LIGHTING AND OTHER AIRPORT POWER APPLICATIONS

Our industrial Uninterruptible Power Supply systems (UPS systems) are supplied to military locations and to civil airports to provide absolutely reliable and secure power for navigation aids, air traffic control systems, passenger check in computers, concourse emergency lighting, baggage handling computers, security and surveillance systems, runway lighting, public address systems, flight information displays and automated people movers, etc.

LINE DROP COMPENSATION EQUIPMENT AND 50HZ TO 60HZ FREQUENCY CONVERTERS

Line drop compensation equipment is also supplied for use with centralized 400Hz systems to compensate for voltage reduction in the circuit feeding multiple outlets to the point-of-use at individual aircraft locations.

The 50Hz to 60Hz frequency converters are supplied for hangar, workshop and apron use for military locations and civil airports. These converters are also used for industrial installations where it is necessary to convert frequency from 50Hz to 60Hz, for shore to ship services and where American 60Hz equipment needs to be connected to the internationally available 50Hz mains supply.

SINGLE OR PARALLEL CONFIGURATION FREQUENCY CONVERTERS

Our frequency converters can also be supplied in single or in parallel configuration to provide 400Hz or 60Hz power through a ring main distribution system for multiple item point-of-use power outlets for service installations in workshops, hangars and in hard shelters.

CENTRALISED 400HZ FREQUENCY CONVERSION SYSTEMS

The centralised 400Hz system, with multiple converters connected in parallel and installed in a climatically controlled plant room, would be the preferred scheme for installations at airports in geographic locations where very high ambient temperatures prevail. Centralised 400Hz power distribution systems are ideal for the large multi-point installations.

The frequency converters are configured in parallel to share equally the total load connected to the distribution system. Line drop compensators or transformers are used at point of power take-off to the aircraft to enable the distribution system to deliver a precisely regulated voltage at 400Hz to any aircraft regardless of the number of aircraft connected to the distribution system.

SINGLE MODULE 400HZ FREQUENCY CONVERTERS

The single module 400Hz converters can be used for installation adjacent to the passenger loading bridges or in workshops, hangars and other point-of-use applications adjacent to the aircraft-parking place where a centralised system with distribution would not be a cost effective alternative consideration.

We can also supply and install a variety of telemetering, remote monitoring, surveillance and systems that allows full observation of critical functions of the operational behaviour of the frequency converters, the interfacing with the connected load and the power consumption at the point-of-use.

Frequency converters located adjacent to every aircraft stand is a very cost effective and flexible arrangement, especially on smaller installations. The single module frequency converters are simple to connect to normal available mains sources and they can be located close to the aircraft point-of-use without the need for pits or other apron excavation work.

AUTOMATIC HARMONICS AND POWER FACTOR CORRECTION EQUIPMENT

We offer a custom engineering evaluation, design and installation service to provide the best appropriate filters to absorb, compensate and correct harmonic distortion at the load, where the actual problem is generated or at the power distribution board if correction at the load is not possible. The harmonic correction can be often combined with a custom engineered multi-step power factor correction system.