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The basic unit is composed of one galvanometer for direct reading from 1 kV through 16 kV, one reel with 6.50 m (21.33 ft) 16 kV rated protected cable, and two Ritzglas® poles, which are high-impedance units, necessary for the measurements.
For voltage classes higher than 16 kV, the use of extension resistors (RH1876-4 for 48 kV setting and RH1876-2 for 80 kV setting) is required. These extensions are attached to the end of the tester pole, using threaded connections. Thus, readings are no longer direct, that is, for 48 kV setting - scale reading must be multiplied by 3 and for 80 kV setting - scale reading must be multiplied by 5.
For 48 kV setting (RH1876-4), a pair of extensions is used and, for 80 kV setting (RH1876-2), two pairs of extensions are used. The length of each extension is 630 mm (2.07 ft).
The Calibration Device (H1876/B-AFT) is intended to calibrate the Fase Tester prior to use, mainly after an extended period of no service. The calibration device sends a digital signal to the Fase Tester so the reading on the galvanometer can be compared with the value indicated on the display of the Calibration Device.
The Calibration Device must be ordered separately.
Power: 9 V Alkaline battery.
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