. The Street railway journal . actured by the British Thomson-HoustonCompany. All these, together with the other high-tension ap-paratus, are situated in a special annex, which has been addedto the engine and dynamo room in order to accommodate two transformers and the reactance coils are also situated considerable expense in cable and securing greater freedomfrom breakdown. Any panel can be readily isolated, while the remainder of theboard and the bus-bars are alive. Suitable section switches atall necessary points are provided for these purposes. AnEverett-Edgecumbe rotary synchroni
. The Street railway journal . actured by the British Thomson-HoustonCompany. All these, together with the other high-tension ap-paratus, are situated in a special annex, which has been addedto the engine and dynamo room in order to accommodate two transformers and the reactance coils are also situated considerable expense in cable and securing greater freedomfrom breakdown. Any panel can be readily isolated, while the remainder of theboard and the bus-bars are alive. Suitable section switches atall necessary points are provided for these purposes. AnEverett-Edgecumbe rotary synchronizer is supplied in additionto the usual phase lamps. Fig. 14 gives a section through oneof the alternator panels. The switch gear at Douglas, Groudle and Ballaglass is inevery way similar to that at Laxey, with the omission of thegenerator switch gear. Fig. 15 is a photograph of a portion of the high-tensionswitch gear in the special annex at Laxey. Owing to the smallspace available the view obtained is somewhat foreshortened,. iROUDLK CiLEN STATION in the annex. The high and low-tension parts of the boards areabsolutely separated, there being no high-tension apparatus orconductors either on the back or front of the operating the high-tension apparatus is arranged in compartmentsbuilt into the walls of the annex. The three-pole oil switches are worked by levers and linksfrom the operating panels, and the voltmeters and ammetersare supplied by step-down transformers at low pressure. No high-pressure fuses are provided; instead the three-poleswitches are fitted with a circuit-breaking attachment workedby means of the low-tension relay mounted upon the corre-sponding operating panel, and supplied by a small series trans-former. The switch can be arranged to open at any predeter-mined value of current, and is guaranteed to open a circuit volts on the severest short circuit that can take place. On account of the character of these oil switches, which arealso prov
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
