The CHANCE® Wireless Phasing Set (WPS), model PSC4032916, consists of two separate units: a “MAIN” and a “PROBE”. It is a portable tool which has two main modes of operation. The first mode of operation utilizes both “MAIN” and “PROBE” units and is designed to determine the phase relationship between two electrical conductors with the same nominal voltage. The second mode of operation only utilizes the “MAIN” unit and emulates the functions of the Auto-Ranging Voltage Indicator (ARVI) model PSC4032915.
Wireless Phasing Set Mode
In Wireless Phasing Set (WPS) Mode, the “MAIN” and the “PROBE” will operate together as a unique pair as long as the blue “COM” LEDs remain solid. The two units communicate via linked digital radios. The WPS is not considered a voltmeter since no wired connection exists between the two units. It is designed to determine the phase relationship between two electrical conductors with the same nominal voltage. This is accomplished by comparing the measurements of the “MAIN” and “PROBE” units to determine whether the two conductors are in phase or out of phase.
The WPS Mode is designed for use on 480 V through 765 kV AC 50/60 Hz Phase-to-Phase nominal voltage, including Capacitive Test Points.
The Auto-Ranging Voltage Indicator (ARVI) Mode utilizes only the “MAIN” unit. It is used as a secondary means to confirm the condition of an AC (Alternating Current) high-voltage circuit after principal work procedures such as visible open gaps, dispatcher hold orders, and apparatus tag-outs have rendered the circuit de-energized. The ARVI Mode utilizes a single point of contact to the conductor, therefore it is not a voltmeter. It is designed to determine approximate Phase-to-Phase nominal voltage up to 765 kV AC 50/60 Hz.
While in ARVI Mode, the device is an electric field intensity indicator, which is calibrated to illuminate an LED (Light-Emitting Diode) representing the class of voltage that is present on the conductor. It responds to the magnitude of the field gradient between its end probe and a floating electrode. The device indicates the combined field intensity from all other conductors, including ground wires and grounded equipment. If the universal fitting is close to a ground, another phase, or another voltage source the voltage indication will tend to be high. If the universal fitting is close to a jumper or equipment of the same phase, the indication will tend to be low. The tool must always be used with an appropriate length Hot Stick for safety and to maintain its calibration.
Features (Wireless Phasing Set Mode)
- Designed to determine the phase relationship between two electrical conductors with the same nominal voltage
- Communicates wirelessly via linked digital radios
- Linked units can operate up to 300 ft away from each other
- 480 V through 765 kV AC 3Ø for overhead and underground systems
- Works on Capacitive Test Points
- Adjustable audible alarm
- Battery drawer on each unit for simple battery replacement
- Comes with a dual compartment storage bag with a snaphook designed to attach to a lineman’s belt
- QR code located in the instructions, Quick Reference guide, and on the unit itself
Features (ARVI Mode)
- Meets intent of OSHA 1910.269 to test for absence of nominal voltage
- Used to determine if power lines are at rated voltage, have induced voltage, or are de-energized
- Capacitive Test Point through 765 kV AC for overhead and underground systems
- Adjustable audible alarm
- Power-saving sleep mode (auto-off)
- Approximate Phase-to-Phase voltage ranges are indicated by LED lights
- Automatic Hold Mode