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  1. dualrobin

    Under Crimping - HV/MV Terminations

    The answer to both questions is yes. The connector is rated for solid cable The connector has enough current carrying capacity. Thanks
  2. dualrobin

    Under Crimping - HV/MV Terminations

    Scotty, This cable type (36kv/185mmsq/Al/XLPE/Cu/50mmsq/MDPE) is a common cable on the railway infrastructure and is supplied and installed daily. The cable conductor is indeed a single solid aluminium strand with a diameter of 15.1mm (nominal). The exact specification is available at...
  3. dualrobin

    Under Crimping - HV/MV Terminations

    A question has been raised that so far we have not been able to find an answer for. In general it appertains to jointing solid Al conductor together using a Al through ferrule. If the CSA of the solid conductor is 185mmsq, with a diameter of 15.1mm, should we use an Al ferrule that is for...
  4. dualrobin

    English's Electric OBX3 Circuit Breaker

    I don't know where in the world this equipment is but try these companies English companies that supply refurbished electrical sitchgear; http://www.slaters-electricals.com http://www.wilsondencol.co.uk Regards
  5. dualrobin

    Buchholz Relay

    A device that is manufactured by GE Harris under the trade name of Synergy is bolted to the transformer and samples the gas in oil via a valve on the main tank. This device measures some of the main gases on a timed cycle set by the user. This device can be programmed to alarm at predetrimed gas...
  6. dualrobin

    Electromechanical Relay

    Try this link to the Reyrolle (VA Tech) web site. It does have a data sheet on a 4C21 relay http://www.reyrolle-protection.com/list_by_product.php Dualrobin
  7. dualrobin

    Current Transformer Test for Insulation Resistance

    Sir, 55M ohm at what voltage was the test conducted? Were any other tests carried out?
  8. dualrobin

    testing of 11kV cable

    In general I have not found a specific BS on the testing of High Voltage cables. However the industry rule of thumb for DC voltage testing is 1.5 x nominal AC voltage.
  9. dualrobin

    CO2 Fire Supression Inside Switchgear & MCC?

    I have not seen a CO2 system in 13.8KV switchgear but I have seen a FM-200 system with heat detectors and discharge nozzles. The suppression pipe work and nozzles were located in the auxiliary compartments only and not in the high voltage busbar sections. This switchboard was located in Saudi...
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