3 KV Armature Surge Tester

3KV Digital Armature Surge Tester

Model: D-3KAT

The Digital Armature Surge Tester with bar-to-bar test is a cost-effective solution to check the quality of Small to Large range of DC Traction Motors ideally suited for Railways. The Bar-To-Bar Test is provided to test the Low impedance of the Series wound Armatures and Field coils of DC Traction Motors. The Surge Tester has an Embedded Industrial PC with 8 inch Touch screen Display and software to Store, Recall and Print the Test Reports.

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  • Infinite model storage capability
  • Job work management area for motor data reference
  • Dual feature to either store and compare against master waveform or compare between two windings simultaneously
  • Colour coded waveforms for better analysis
  • LABVIEW software to Store, print and recall surge test waveforms & reports
  • Graphical and numerical representation of %error between the waveforms
  • Automatic report generation in MS word
  • Target voltage indication based on motor ratings


  • Adjustable Volts/Div and TimeBase
  • Colour coded waveform display
  • Surge test peak voltage indicator
  • Graphical and numerical %error display
  • Target voltage indicator based on motor rating>
  • Test result lamp indicator
  • Save, recall and print waveforms & reports


TEST POSITION I) Testing of Stator and Field Coils of DC Armatures (Dual Channel)
This tester is widely used in Railways and Diesel Local sheds for Testing Newly and Rewound DC Traction Motors. The High Pulse current and Pulse Energy is ideally suited to Test the Field and Pole Coils of DC Motor and also completely wound stator with the help of 3-phase Test Select Switch.

  • Stators of DC Traction Motor
  • Field and Pole coils

TEST POSITION II) Bar-To-Bar Test for DC Armatures (Single Channel)
To perform this test, the armature to be tested is positioned between centers so that is could be rotated. A fixture with adjustable brushes is used to contact the armature at three positions. Two segments with an equal number of bars are then compared and if the two segments are balanced and contain no faults, a single pattern will appear on the Display. Faults are located by noting the change in the pattern as the armature is rotated bar-to-bar. The important advantage surge testing offers when applied to armature is the ability to locate high resistance carbon shorts. These can be major problem and cannot be detected by the low voltage tests normally done. Because the Surge tester utilizes much higher levels, these faults can be determined and located in most of the cases.

  • Armatures of DC Motor


Model D-3KAT
Test Voltage 0 – 3,000 Volts (Adjustable)
Pulse Current 3000 Amps
Pulse Energy 4.5 J/channel
Capacitance 0.5 μF/channel
Impulse Rise Time 0.1-0.2 μS (In accordance with IEEE 522 Standard)
Impulse Repetition Rate 5.0 Hz (5 Pulses per second)
Vertical Senstivity 125V, 250V, 500V, 1000V
Sweep/TimeBase 4 μS – 10 mS
Operating Voltage & Frequency 230 V (50/60 Hz) or 110 V (60 Hz)
Power consumption 240 Watts (Max)
Dimensions 435 (w) x 250 (H) x 540 (D) mm Approx
Gross Weight 45 Kgs
Net Weight 30 Kgs


  • Footswitch for hands free operation
  • Highly Sensitive fault detection capability
  • Test leads insulated to 45KV rating
  • 8 inch touch screen colour display
  • Leads energized warning indicator
  • Armature & 3φ Test Select Switch
  • Hand Held Probe Applicator For Higher Current Capabilities Of Bar-To-Bar In Order To Detect The TIG Weld Short & High Resistance Joints
  • Printer can be connected to tester via USB for direct printouts


  • 8 inch touch screen display.
  • Industrial grade CPU (Intel Dual Core)
  • 4GB RAM / 500GB hard disk
  • Windows 7 / MS Office / Anti Virus
  • Dust proof / Water resistant / 0-60O C
  • 2 USB ports
  • Wireless keyboard & mouse


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