Circular of the Bureau of Standards, Masalah 55-57U.S. Government Printing Office, 1915 |
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Halaman 47
... exceed 20. No individual meter shall fail in more than five items . 25. When less than 10 meters are submitted for test , no meter shall fail in any item in such tests . At the request , however , of the applicant or manufacturer , or ...
... exceed 20. No individual meter shall fail in more than five items . 25. When less than 10 meters are submitted for test , no meter shall fail in any item in such tests . At the request , however , of the applicant or manufacturer , or ...
Halaman 48
... exceed 4 per cent . 27. Test No. 2 : Effect of Variation of Voltage . - 1 . No meter shall creep at 110 per cent of calibration voltage . The effect of variation of voltage upon the registration of a meter carrying constant load in ...
... exceed 4 per cent . 27. Test No. 2 : Effect of Variation of Voltage . - 1 . No meter shall creep at 110 per cent of calibration voltage . The effect of variation of voltage upon the registration of a meter carrying constant load in ...
Halaman 49
... exceed 2.5 per cent . An approximately uniform magnetic field of 0.25 gauss shall be applied to one of the meters submitted , in such a direction as to have the maximum effect upon the registration of the meter . An apparatus for ...
... exceed 2.5 per cent . An approximately uniform magnetic field of 0.25 gauss shall be applied to one of the meters submitted , in such a direction as to have the maximum effect upon the registration of the meter . An apparatus for ...
Halaman 50
... exceed 15 watts . In meters of more than 25 amperes capacity , the drop shall not exceed 0.4 volt . SPECIFICATIONS FOR THE TESTING OF SINGLE - PHASE INDUCTION WATTHOUR METERS All tests of alternating - current meters shall be made at ...
... exceed 15 watts . In meters of more than 25 amperes capacity , the drop shall not exceed 0.4 volt . SPECIFICATIONS FOR THE TESTING OF SINGLE - PHASE INDUCTION WATTHOUR METERS All tests of alternating - current meters shall be made at ...
Halaman 51
... exceed 2 per cent . 34. Test No. 2 : Effect of Variation of Voltage . - 1 . No meter shall creep at 110 per cent of calibration voltage . The effect of variation of voltage upon the registration of a meter carrying constant load in ...
... exceed 2 per cent . 34. Test No. 2 : Effect of Variation of Voltage . - 1 . No meter shall creep at 110 per cent of calibration voltage . The effect of variation of voltage upon the registration of a meter carrying constant load in ...
Istilah dan frasa umum
accidents accuracy adjusted alternating current ammeters amount apparatus appliances approved bills candlepower cent of rated circuits clock commodity complaint connected consumer or user correct cost cubic feet deposit dial direct current electric meters electric service electrical energy equipment examination and testing exceed fluid ounces furnished gas and electric gas meter gas or electricity heat heavy load hydrometer incandescent lamps inspection inspector instruments investigation kilowatt kilowatthour laboratory laws least once light load measuring meter is found meter tests method months National Electrical normal load operation ordinance period person portable premises prescribe Public Service Commission public utility rated current reading reasonable record request rules and regulations service meter specifications station temperature tested at least thereof thermometer tion tungsten variations voltage regulation voltmeters volts water meter watthour meters wattmeters watts weight WEST VIRGINIA wires
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