Easy to use phase rotation meter.

The Knopp K-3 Phase Sequence Indicator by is used to determine the phase sequence (A-B-C or C-B-A) or direction of rotation in three-phase motors (A-B-C is clockwise rotation).

The primary function of the K-3 Phase Sequence Indicator is to indicate the order of succession in time of the different voltage peaks of a multi-phase supply. In addition, the Knopp K-3 Phase Sequence Indicator enables one to make continuity tests.

It is a valuable testing instrument in diverse fields such as polyphase power applications, and is employed by line and installation crews for public utilitiy systems and industrial-plant electrical departments.

The Knopp K-3 Phase Sequence Indicator is used in connection with making of three-phase circuit connections and alterations, and replacement installations of motors and generators, as well as making continuity tests of circuits of polyphase systems, connections of power-factor meters, volt-ampere meters, watt and watthour meters, and relays.

The most frequent application of the Knopp Phase Sequence Indicator is for phasing-in a power line which has supplied power to motors and plants, and where line alterations are made in the circuit feeding the line.

It is necessary to determine the phase sequence before alteration is made so that the same sequence can be re-established by the line crew after any alterations have been made.

This will avoid the possibility of damaging consumer electric motors and other machinery.

It is also important that phase sequence is known prior to energizing electrical motors and other equipment at the facility management and general consumer levels, as incorrect phase rotation could cause severe damage to the connected equipment and other loads.

Also known in the trade as a phase rotation meter, or a rotation meter, the Knopp K-3 Phase Sequence Indicator will give you the proper direction of electric phase rotation.

Be sure to purchase the carrying case shown in the image below to protect your new Knopp Phase Sequence Indicator.

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