Comparative tests of induction wattmeters . •>. »aaBBi!»3sssHacsaRX ??????*? ?^?????Mpiiniicik* ^«at?«? ^*aSviipas ^a .n^ai Duncan Induction Wattmeter Tjrpe A. Data showing the effect of-change of voltage at 100/?load. Temperature = 62 - ° factor = .99Frequency = 30 cycles/sec. oltage Registered {inri:ri^^M:itn±:^^ Duncan Induction Wattmeter Type A. Data sliov/ing the effeiJt of change of voltage at 75^load. Temperature = 62 - ° factor = .99Frequency = 60 cycles/sec. Volta

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Comparative tests of induction wattmeters . •>. »aaBBi!»3sssHacsaRX ??????*? ?^?????Mpiiniicik* ^«at?«? ^*aSviipas ^a .n^ai Duncan Induction Wattmeter Tjrpe A. Data showing the effect of-change of voltage at 100/?load. Temperature = 62 - ° factor = .99Frequency = 30 cycles/sec. oltage Registered {inri:ri^^M:itn±:^^ Duncan Induction Wattmeter Type A. Data sliov/ing the effeiJt of change of voltage at 75^load. Temperature = 62 - ° factor = .99Frequency = 60 cycles/sec. Voltage Registered WKK^^^^^^^Y ? ^!-^\ :-^^^^^^^^^^^^^^P ?- - I V- o« -i^L- 4 ^:.Li.:fr) -^^^^^^^^^^^^^^mt^ I Hi ^ 5 *> ^ 1: 1 \ 1 1 i^^^^i C>9 O^ Duncan Induction Wattmeter Type A. Data showing the effect of change of voltage at 50*^load. Temperature = 62 - ° factor = .99Frequency = 60 cycles/sec. Voltage Register

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