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High Voltage Ammeters

The HALO® is a High Voltage Detector for use on power distribution systems designed to take True RMS AC current measurements. Its open-core design allows the user to quickly hook it over a conductor from the end of a hotstick and obtain a current reading in amperes. The HALO can be used to take spot load measurements on a single phase, as well as take readings on all three phases to determine load balance. There are two models, the HALO I and the HALO II. The HALO I has a peak-hold mode so the reading is stored on the display until reset. The HALO II includes the peak-hold mode and also a tracking mode that allows the user to view continuous changes on the display. The unit can be used on any voltage up to 69kV system voltages. It is available with either a hook-style or fork-style sensing head. A hook style sensing head allows for easy connection to overhead lines from the ground or a bucket truck. The fork style sensing head can be used on overhead lines and underground cable, just below the elbow connection. The HALO can be used over insulated cable. However, it cannot be used over shielded cable, such as the concentric neutral.

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