Megger 560060 Phase and Motor Rotation Test 50/60H

The Megger 560060 Motor and Phase Rotation Tester permits the electrical contractor or industrial maintenance electrician to permanently connect and tape the terminals of the motor being installed, without having to first energize the motor by a temporary hookup from a power source, if available, to determine motor rotation. Therefore, the test set eliminates the need for temporary connections that can be time consuming, costly and quite hazardous, particularly where many large, high-voltage motors are involved.

Also, certain types of drives should never be rotated in the wrong direction. In such cases, the temporary hookup or trial method, having a fifty-fifty chance of being wrong, can do serious harm.

The three motor leads on the left side of the test set are for attachment to the terminals of the motor being tested for rotation determination.

Fuses are inserted in the motor A and C test leads as protection in the event the user accidentally touches these leads to an energized circuit. These standard fuses are easily removed and replaced from their panel-mounted holders.

The three lines leading to the right of the test set are for direct attachment to energized ac power systems up to 600 volts to determine the system phase sequence. A four-position switch selects the test to be made - system phase sequence, motor rotation and transformer polarity. The selector switch connects a D-size dry cell into the circuit when the rotation of a motor or the polarity of a transformer is being checked. In the OFF position, both the meter and the battery are disconnected from all circuits. A push switch is connected in series with the battery and opens the circuit during transformer polarity testing.

The dry cell is easily removed and replaced from its panel-mounted holder by a coin-slot access cap. The dc zero-center ammeter indicates correct or incorrect rotation or polarity by deflecting its pointer to the right or left. A zero or null adjuster is provided for the ammeter. 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.