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LOW VOLTAGE CAPACITORS |
Phasetech Limited |
LOW VOLTAGE DRY TYPE CAPACITORS
| The ZEZ-Silko range of capacitors includes
this low voltage dry type intended for use in power factor correction
systems.
Theyaretrue3phaseunitsandareavailablein40Ov,415v,44Ovand525vrating.
They are constructed using MKP technology, which consists of metallised polypropoline film wound to produce the required capacitance. It is then enclosed in a cylindrical aluminium case, dry filled, sealed and connected to terminals on the top. Discharge resistors are fitted to reduce the charge to 50v after 1 minute. The dielectric is self-healing and low loss. Dielectric losses are about 0.2W/KVAr, total losses about 0.5W/KVAr. |
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The case is fitted with an overpressure device, which disconnects the elements before a safe pressure can be exceeded. The units comply with IEC831-1, 2/87.
The capacitors are designed for indoor use, IP20, but push-on covers with glands are available to improve this to 1P54.
| Mounting is by M12 threaded stud, 16mm long,
on the base, which also provides means of earthing the unit. The
capacitors may be mounted vertically or horizontally, allow some space for
cooling air circulation. Also cables and space must allow 20mm movement of
the lid for the pressure disconnection system to operate.
The capacitors should be fused at 2A per KVAr, using fuses with gG characteristics. Phasetech are the UK distributors for these capacitors. |
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