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Batteries, chargers and circuit protection
News Release from: Watford Control Instruments | Subject: EMS/E15 Series
Edited by the Engineeringtalk Editorial
Team on 12 October 2004
Stabilisers ensure undistorted mains
Sales of EMS/E15 Series AC voltage stabilisers from Watford Control are rising rapidly, with over 200 sold since the introduction in 2003.
Sales of EMS/E15 Series AC voltage stabilisers from Watford Control are rising rapidly, with over 200 sold since the introduction in 2003 The product offers a cost effective and efficient way to ensure a stable, undistorted mains supply for a vast range of applications
This article was originally published on Engineeringtalk on 9 Sep 2004 at 8.00am (UK)
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Solid-state stabilisers cut AC distortion
The advantage of true solid state, low distortion, inductive power control is offered by the BE21 range of AC voltage stabilisers and power conditioners designed and manufactured by Watford Control.
Stability for single- and three-phase supplies
Watford Control reckons it provides leading-edge design with its EMS range of electronic servo AC voltage stabilisers and power conditioners.
With single- and three-phase versions available, the EMS/E15 also covers a wide variety of input voltage swings.
Any organisation using performance critical electrical equipment, such as hospitals, medical centres, banks, insurance companies and factories, will benefit from the low cost, servomechanical EMS/E15 stabiliser units.
The products ensure that electrical equipment is allowed to function free of stress and strain, giving significantly extended life expectancy.
Microprocessor-based equipment such as computers require both a spike-free and a stable power supply, as damage caused by adverse supply conditions can be catastrophic, particularly in safety or security-based situations.
Formulated on a proven design, a double wound transformer has its secondary winding connected between the load and the incoming AC supply, with a motor-driven variable auto transformer controlling the primary winding voltage.
A solid-state servo amplifier continuously monitors the output voltage of the stabiliser.
Any error voltage is amplified to operate the servomotor of the variable transformer, driving its brush-gear to inject a voltage that will correct the supply voltage by adding to or subtracting from it.
High accuracy output voltage is maintained irrespective of power factor, frequency variations and ambient temperature changes from -15 to +45C.
The fast response EMS/E15 stabilisers offer low internal impedance capable of sustaining high surge currents, while efficiency of better than 98% is assured.
Waveform distortion is negligible with any type of load and soft-start capability ensures low output voltage at the moment of switching on.
The units are fully compliant with CE regulations.
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