50KVAr CHASSIS
Phasetech Limited
Industry Park, Cricketts Lane
Chippenham, Wiltshire SN15 3EQ
Tel: +44 (0)1249 651436
Fax: +44 (0)1249 462356
sales@phasetech.co.uk
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50KVAr CHASSIS |
Phasetech Limited |
SEMI-AUTOMATIC CHASSIS
| The Phasetech semi-automatic chassis are manufactured for the production of Automatic Power Factor Correction systems. Each chassis contains the fuses, contactors, capacitors and terminals to give 1 x 50KVAr or 2 x 25KVAr stages (at 415v) for control from a power factor controller. Smaller stage sizes can be fitted at reduced cost. |  |
| .The
fuses are type NH00, recommended for use with capacitive loads. Maximum I00A
for 50KVAr of reactive power. Switching capacitors can produce large surge currents (up to 300xIn). To avoid these damaging surges we use contactors with early make contacts that allow limited initial currents to put a small charge into the capacitor before the main contacts close. This is known as 'soft switching'. Coil voltages of 110, 230 or 415v 50Hz are available. |
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| All capacitors used in our systems
use MKP technology, metallised polypropylene film, dry type. self healing
with pressure disconnector assembled in a cylindrical aluminium case.
Equipped with discharge resistors to reduce the charge voltage to 50v in 1
minute. Manufactured to IEC831 1,2.
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| The chassis are designed to fit a 600mm wide
cubicle. They bolt directly onto (Unistrut type) vertical rails in Eldon,
Rittal or Sarel cubicles.
Two versions are available, the busbar version can be mounted one above the other and the bars bolted together with link bars supplied. Maximum stack 6 x chassis giving 300KVAr switched in 6 x 50KVAr or 12 x 25KVAr stages. The terminal version allows each chassis to be wired individually as required. Detuned chassis are also available for use where harmonics present a problem. |
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