Surge testing detects faults in both inter-turn winding and phase-to-phase insulation systems. Matlock Electric uses advanced analog-to-digital conversion hardware, to capture the surge test waveform, remember it, display it indefinitely, and print it. This surge waveform storage capability can be applied to other motors besides simple induction motors. Matlock Electric can test all the rotating fields of a synchronous motor by storing the waveform from a surge test on one coil, and comparing that waveform to a waveform from every other coil. Our Digital Winding Tester can also be used on DC armatures and fields. The resulting waveform can then be compared to all other bar-to-bar or span tests to detect a winding fault.

Matlock Electric's Surge Testing Technology

Baker D12R Digital Winding Tester

Matlock Electric's D12R Digital Winding Tester is the newest surge tester offered by Baker Instrument Company. Additional testing capabilities have been added to the tester to make it a more comprehensive tool for predictive maintenance. Matlock Electric is able to provide high precision testing capabilities allowing data collection in the shop or the field. This tester demonstrates Matlock Electric's continual commitment to motor integrity and insulation testing. The Resistance Test verifies the existence of dead shorts within the turn-to-turn coils, shows any imbalances between phases due to turn count differences, along with locating poor wire connection or contacts. DC HiPot testing detects faults in groundwall/earth insulation, and also provides a complete Polarization Index test. The groundwall/earth insulation system consists of the wires insulation, slot liner insulation, wedges, varnish, and sometimes phase paper. Surge testing can also be completed on-site.

Features:

- Storage of test data for up to 10 motors
- Baker's QRR reliability Voltage Amplitude
- Zero Start Interlock for Tester High Voltage Output
- Leads energized safety warning indicator
- HiPot Over-Current safety warning indicator
- Input Source Open Ground operator safety disable and warning indicator
- Test lead insulated to 45 kV rating
- Dedicated test leads for Resistance Testing
- Test lead select switch with All Leads Grounded operator safety position
- Parallel Printer and PC interface

(Click image to enlarge)

Sample Surge Test

Click here for more information on the Baker Digital Winding Tester.

Contact us for more information regarding our Surge Testing.