Availability
Manufacturers
Phase Rotation Testers
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Silvertronic 135027/28 Combined Colour 3 Phase Meter
£136.80 £114.00- Combined colours for older/new phases
- Two versions available
- High quality, GS38 compliant test leads
114 Reward PointsPrice Match GuaranteeSILVER-135027-28 -
Extech 480403 Motor Rotation and 3 Phase Tester
£137.88 £114.90- Motor direction indication
- LED indicators of phase
- 40 to 600V AC testing range
114 Reward PointsPrice Match Guarantee480403 -
Megger (1001-612) PSI410 50Hz Phase Rotation Tester£141.54 £117.95The PS410 phase sequence indicator allows you to easily and safely identify correct phase sequences using rotating LEDs and audible tones.117 Reward PointsPrice Match GuaranteePSI410 -
Martindale PC15250 Phase Rotation & Continuity Indicator£142.20 £118.50- Verify the status of three-phase systems
- GS38 compliant
- Fast and efficient testing method
118 Reward PointsPrice Match GuaranteeMARPC15250 -
Silvertronic 135029 Colour 3-Phase Meter – Clockwise
£148.52 £123.77- Compliant with the latest phase rotation colours
- Double-insulated, GS38 test leads are attached directly to the display unit
- Display with rotating disc
123 Reward PointsPrice Match Guarantee135029 -
Extech PRT200 Non Contact Phase Sequence Tester£148.80 £124.00- 75 to 1000V AC input voltage range
- Checks phase status and sequence
- LED indicators
124 Reward PointsPrice Match GuaranteePRT200
About Phase Rotation Testers
Industrial phase rotation meters are a vital instrument for any engineer working with three-phase power. Three-phase power is a convenient and cost-effective way to move large currents at vast distances. This is primarily because three-phase uses alternating current (AC) that is the same frequency but is slightly out of synch so that they reach their instantaneous peak at different times. Three-phase is used by electricity companies to send their power across the country and although three-phase power is rarely found in domestic properties it is often found in many industrial settings.
The main advantages of using three-phase power are:
- Because all of the phases are carrying the same current there is no need for a neutral line this is also called a linear balanced load
- Three-phase power requires far less conductive material to send the same amount of current as compared to two-phase delivery systems.
- By using the staggered nature of each phase it is relatively simple to produce rotating magnetic fields, this enables the production of electronic motors and due to the linear balanced load, the power is constant so the motor will run more efficiently with far less vibration.
A phase rotation meter monitors how the three phases are rotating with each other. This is particularly useful with motors as it will dictate the direction the motor will operate, the incorrect rotation could be disastrous, especially in the process industry where a single connection could be linked to a wide range of different sensitive motors. The chief way to prevent this is by using the correct phase rotation meter. Each meter can come with a range of compatible probes and clips it can be vital to ensure that the correct adapter is available for the job at hand.
