Phase Sequence Indicator Dealers

Electrical work on commercial and industrial installations often requires working on motorised machinery with three phase supplies. Correct sequence of the phases is important with certain motors and pumps as damage to brakes and valves will occur in minutes with incorrect phasing. The Megger PSI410 phase rotation indicator provides rapid indication of correct phase sequence utilising a three bi- coloured LED display and a specific audible tone. Clockwise rotation is indicated by clockwise rotating green LEDs with a continuous tone and counter clockwise rotation has counter clockwise rotating red LEDs and a warbling tone. To avoid the display rotating at the supply frequency the unit has been designed to provide a slow rotational speed of the display to allow easy indication of rotation. Dual phase colour coding has been adopted for the PSI410 to allow ease of use on both Brown / Black / Grey and Red / Yellow / Blue colour coded supplies. The PSI410 also features a triple bi-coloured LED display that indicates that all three phases are present. A green LED indicates the phase is present while a red LED shows a missing phase connection. The unit has a tough rugged case designed for an industrial environment and is supplied with long fused test leads with croc-clips and prods. The prods have insulated tips that provide less than 4 mm exposed tip. The PSI410 is self powered from the supply and requires no batteries.

In Electrical System, sometime without identification of Phase Sequence it is impossible to proceed further. The Phase Sequence Indicator is used to determine the Phase Sequence R, Y & B of 3 Phase Voltage. It is important that Phase Sequence is known properly prior to energizing electrical motor & other equipment, as incorrect connection could cause damage to the equipment. The correct operation of measuring instrument like 3 Phase Energy Meter, 3 Phase Power Meter and Automatic Control of devices also depend on the Phase Sequence.

DESCRIPTION:- It is a rotating disc type instrument. The disc rotates in clockwise direction when correctly connected to incoming three phase power supply. Black arrow on white disk indicates correct phase sequence. If rotation is anti-clockwise then it indicates that one of the phases is reversed. It is suitable for use only in horizontal position and should not be left in circuit. Three, 1 meter long red, yellow, blue colour leads with clips and sheaths are provided. ELECTRICAL SPECIFICATIONS:- TYPE:- Electro-mechanical OPERATING VOLTAGE:- 50V to 500V AC FREQUENCY:- 25 Hz to 60 Hz. OPERATING TEMP. :- -10°C to 55°C STORAGE TEMP.:- -20° to 70°C HUMIDITY:- upto 95% RH

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We deals in supplying of wide range of Phase Sequence Indicator.

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