West Asia Trading & Engineering Pte Ltd
Importers, Exporters, Engineering Works,
Manufacturers Representative & Commission Agent
No. 1 Kim Keat Lane Singapore
328858 Tel: +(65) 6250 5676 Fax:
+(65) 6252 9890
E-mail: westasia@singnet.com.sg
P
& B Buchholz Relays
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P&B
has been a leading manufacturer of Transformer protection relays of the
Buchholz principle for over 60 years. Most faults in an oil filled
Transformer are accompanied by the generation of gas. By using a suitable
relay the formation of this gas can be used as a warning of a developing
fault. SCOPE Products have been designed,
tested and manufactured to meet the detailed requirements of British Standard
BEBS T2, Eskom and DIN specifications. P&B were also privileged to be represented on
the technical committee responsible for preparation of the harmonised
European specification EN 50 216, which relays also comply to. PRODUCT RANGE A vast
range of standard products is available, whilst we are happy to provide units
to your specific requirements e.g. fixings, flanges, conduit entry,
calibration, finish etc. |
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The Dry Air
Pump provides a portable solution for on-site testing of Gas and Oil operated
Buchholz relays. A charge of air is created in the
polycarbonate cylinder by means of a foot operated pump. The cylinder
contains an indicating silica gel, which absorbs the moisture present in the
air. The pressure of the air charge is monitored on the built-in pressure
gauge. When a suitable pressure has been attained the air charge is then
quickly passed to the Buchholz via a flexible tube, by opening the ballvalve
fitted to the cylinder. To prevent backpressure forcing oil back the flexible
pipe a non-return valve is incorporated in the unit. The indicating silica gel is a
crystalline material, which absorbs moisture readily. The properties of the crystals
can easily be regenerated by heating/drying. The crystals are impregnated
with iron compounds, which gives them an orange colour. Upon absorption of
moisture these crystals change from their orange colour to a pale yellow and
then become colourless. When the crystals change to pale yellow they should
be regenerated. |
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DRY AIR PUMP §
Max. operating pressure 60 psig §
Self contained in a rugged steel case with carrying
handle §
Supplied with 7m long hose and fittings §
Size: 475 x 250 x 128mm |
½ Home ½ Electrical Test Equipment ½ Medical
Electrical Safety Analyser ½ Precision Test Equipment ½ Motor
Protection Relays ½ Level Controller ½
½ Cable Locator ½ Electromotors ½ Generators ½ Safety Interlocks ½ Switchgear
½ Transformer ½ AC Voltage Stabilisers ½ Load
Banks ½
½ Laboratory Power Supply ½ Power Transmission Equipments
½ Transformer
Oil Filtering Machine ½ Fuse Links ½ Cutouts ½
½ Gas Leak Detector ½ Cable
Jointing Kit ½ Filter
Element ½ Vibration & Pneumatic Controls ½
West Asia Trading &
Engineering Pte Ltd
No. 1 Kim Keat Lane
Singapore 328858
Tel: +(65) 6250 5676
Fax: +(65) 6252 9890
E-mail: westasia@singnet.com.sg