test probe / voltage / handheld / mobile

Raptor Polarity Tester

The Raptor Polarity Tester is a simple handheld probe that helps you quickly verify the various connections in a three-phase installation for correct polarity, while the Raptor injects an asymmetrical waveform at one end of the wiring.

The Raptor Polarity Tester is a simple handheld probe that helps you quickly verify the various connections in a three-phase installation for correct polarity, while the Raptor injects an asymmetrical waveform at one end of the wiring.
A single CT supplies secondary current to more than one device (protective relays, meters, etc.) which are installed in switchgear panels, relatively far from the CT itself. The polarity concordance of the secondary current for the various devices is essential to assure proper operation of the secondary scheme; this polarity must be always checked in the commissioning and/or maintenance process. This task takes traditionally a long time and is prone to errors.
The Polarity Tester makes this task very easy, straightforward and efficient because it saves a lot of time and connection errors. The SMC Raptor primary injector inject a special test current waveform from which the Polarity Tester is able to immediately determine if polarity on each device is correct or not. The operator just needs to inject the test current in the circuit and move around all the connected devices while checking the polarity one
by one.
The Raptor PT is powered from two size AAA standard alcaline batteries. Polarity is instantaneously checked in the connected terminals upon pressing the ON button, by means of three LED indicators: orange (polarity not detected), red (inverted polarity), and green.