Megger 560400 - Motor and Phase Rotation 25/50/60/400Hz

The Megger 560000 series motor and phase rotation tester is used to determine system phase sequence, motor rotation, and transformer polarity in electrical systems and motor installations. This analog meter has a four-position knob to select the test to be made and features a push button to start the test. The direct current (DC) zero-center ammeter indicates correct or incorrect rotation or polarity by deflecting the pointer to the left or right. The unit determines motor rotation direction on 1, 2, and 3-phase motors, checks continuity, and tests phase sequence on electrical systems from 0 to 600V alternating current (AC). The A and C test leads are fused to protect the user from accidental contact with high-voltage electrical sources. The tester is designed to work on unenergized motors to prevent damage and increase operator safety. The tester is enclosed in an ABS case with a handle and removable lid. The lid has storage space for the manual and test leads. The 560000 series is used by electricians and electrical contractors.

Electrical test meters report electrical circuit properties, such as voltage, resistance, capacitance, and continuity. Available in handheld or benchtop models, they detect electrical problems in equipment, wiring, and power supplies. A variety of probes, clamps, or leads connect the meter to a circuit or device. Single-function meters, such as battery testers and voltage testers, measure one property of a circuit; multimeters measure multiple properties. Electrical test meters display information either in analog form using a needle that moves on a calibrated scale, or in digital form using digits or a graphic representation on an LED screen. Meter choice includes the electrical properties to be measured and the anticipated range of results, and should have a rating that is higher than the maximum value of the anticipated range. An electrical test meter has multiple settings that correspond to potential ranges of values for the properties it can measure. A manual ranging meter requires the operator to flip through different settings until the correct range is reached. An autoranging meter cycles through range settings automatically until it reaches the correct range.

Applications

The Motor and Phase Rotation Tester provides a positive way to identify the leads of a disconnected polyphase motor; it also identifies true phase sequence of energized 60-Hertz ac power lines up to 600 volts. Both are necessary to ensure that a motor will rotate in a prescribed direction when energized.

There are three other important uses for this unique testing device: it can determine the polarity of power and instrument transformers; it can identify phase and polarity of winding sections of multiple-winding (delta- and star- connected) motors; and it can be used as a continuity tester in checking electrical circuits.

Additional Features and Benefits:

• Determines rotation direction of one-, two- or three-phase motors before connection to line
• Determines phase rotation or sequence of energized power circuits
• Determines polarity of instrument and power transformers
• Determines phase/polarity of unmarked motor windings
• Identifies true phase sequence of energized ac power lines up to 600 volts (Higher voltages can be tested by interposing a step-down transformer.)