Megger (AVO Biddle) MWA330A
3-Phase Ratio and Winding Resistance Analyzer

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Product Overview

RENT Megger MWA330A 3-Phase Winding Resistance Analyzer (Call for Availability)

    The Megger MWA330A Transformer Winding Analyzer is an advanced 3-phase transformer test system delivering portability, reduced set-up time, increased job-site safety, and effortless productivity. All ratio and winding resistance tests are performed in one instrument, with only one 3-phase lead-set connection. The MWA330A utilizes PowerDB as a single software platform saving the user additional time with only one set-up and one easy-to-use test form.  Providing the same test capabilities as the MWA300, the MWA330A comes equipped with an internal computer providing a 305 mm (12 in.) color display with touch-screen interface.

    Once connected, the MWA330A performs DC resistance measurements on all high- and low-side windings without reconnection. The test procedure is simple and efficient. Delivering eight-terminal/six-winding resistance measurement capability without the need for inter-connect boxes saves the user time by testing all six windings without having to disconnect and reconnect leads. In order to avoid problems related to core saturation, the MWA330A winding analyzer comes standard with a core demagnetization function which safely demagnetizes the transformer core after DC testing.

Testing Performed by the Megger MWA330A 3-Phase Winding Resistance Analyzer Include:

• 3-phase turns ratio 
• 3-phase winding resistance 
• OLTC/continuity (make-before-break) 
• 3 phase core demagnetization 
• Magnetic balance / flux distribution 
• Excitation current 
• Polarity and phase angle deviation 
• Auto vector detection 
• Heat-run test 

See Datasheet for full specifications