Megger (AVO Biddle) MWA300
3-PHase Ratio and Winding Resistance Analyzer

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Product Overview

RENT Megger MWA300 3-Phase Winding Resistance Analyzer (Call for Availability)

    The Megger MWA300 Transformer Winding Analyzer offers a faster, more efficient testing device through combining TTR and resistance testing in a single unit. This advanced 3-phase transformer test system provides complete ratio, phase and winding resistance measurements with only one 3-phase lead-set connection. Once connected, the MWA300 performs DC resistance measurements on all high- and low-side windings without reconnection. It has an 8-terminal/6-winding resistance measurement capability and doesn’t need any inter-connected boxes, allowing users to test all 6 windings without having to disconnect and reconnect leads.

    The MWA300 is a “black box” style package that is remotecontrolled by PowerDB software running on an external PC (not provided). The MWA300 series can be used effectively test power transformers, distribution transformers, CTs and VTs, and motors and generators. The MWA300 quickly and efficiently checks for correct polarity between high and low side windings. In order to avoid problems related to core saturation, the Megger MWA300 winding resistance analyzer comes standard with a core demagnetization function which safely demagnetizes the transformer core after DC testing.

Testing Performed by the Megger MWA300 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