Norwich bulletin., 1917-05-17

2750 XIV is ir6ksteam turbo generators anH an1en 800 sds w rsepreGaans eneIss a snF erated at ? z phase, 50 cycles, 23o0 volts, and in addition energy generated hydro electrically is purchased from the Uncas Power company, whose sta miles distant from Norwich. This electric energy Is purchased at fiat rate of 1 cent per XIV, delivered at the departments power station iu Nor wich, to be measured and paid for at 23Oo volts, phase.
 During the time of our visits at Norwich, in March and the early part of April, this year, the T56 XIV steam turbine in the cfty's power station was usually operated during the working day, being. shut down during the noon hour and the hydro electric power was used either all of the time or during a majority of the time. On one of She. days we observed the 2060 XIV steam turbine In operation, and in reply to an inquiry we were informed that due to the rains the previous day the tail water at the Uncas power station had backed up, thereby reducing the head eurtailing the output of that station.
 Gas Manufacture.
 The department manufacturers both coal gas and water gas and the mix ture of the two is sent out through the distributing mains. Until two or three years ago the manufacture of the mixture of both coal gas and wa ter gas worked in very well together for the reason that coke. a bypFoduct from the coal gas, is available as gen orator fuel in the water gas Set, and furthermore, the illuminating quail ty of the mixture can be regulated without the necessity of adding an enricher which would be necessary if coal gas was manufactured exclusive ly. The last two CT three years the cost of oil used in the manufacture of water gas has been so high that most companies have manufa ctured as large a portion of coal gas as pos Sfble consistent with the mixture maintaining the standard of illumina- tion required by the various public service commissions.
 In the case of the gas department at Norwich, we could find no record of any attempt having been made to reg ulate the relative amount Of coal or water gas manufactured.
 Contract With Uncas Power Company
 The contract for the supply of cleo tric energy to the city of Norwich by the Uncas Power company IS for a term of eight years from July 1, 1916, at the end of which the city has the privilege of renewing the same for an additional period of ten years.
 The Cncas Power company del:v- CTS the energy at the present general ing station of the city. The Power company furnishes and maintains the step-d down transformers etc and the city provides a building for the Power conpany's transforming apparatus sThe city pays cent per kw.h. for the energy delivered and measured at D. 300 volts. 2 phase, Go cycles, which is the voltage at which the city itself generates and distributes electric en- ergy.
 The Contract Terms.
 The terms of the contract are gen orally that the Uncas Power company is to be operated in a manner that will best take care of the city's re- quirenents.
 One cent per k.w.h. for energy de- Hvered at Norwich is an attractive price and is considerably less than the present cost for which the city Is now generating power. It must be borne in mind. however that the energy fur nished by the Uncas Power company is hydro electrical generated and that the Power company can conse- quently deliver power only in the amounts corresponding to the availa : tle amount of water at it's power sta tion, we understand there is com paratively small bondage above the dam.
 There is sufficient water at times to run all three of the Uncas Power Company's generators sometimes two. and sometimes one. As result of