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AWA IV - Baker Instruments Hipots

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  • Model: AWA IV
  • Manufactured by: Baker Instruments
  • Max. Output AC Voltage: n/a
  • Max. Output DC Voltage: 12.000kV
  • Output AC Current: n/a
  • Output DC Current: 1.0mA
  • Extra Specifications: Surge/HiPot/Resistance Tester

The AWA predictive maintenance solution from Baker offers a great deal of flexibility in providing fault recognition in one convenient instrument. The AWA IV integrates a wide range of electrical tests with the hallmark quality of a Baker. This instrument supports all major electric tests in a single field portable unit including Surge, DC HiPot, Step Voltage,Continuous Ramp , Meg ohm and Winding Resistance. This instrument complies to IEEE recommendations.

  • Improved testing capabilities from previous versions: Continuous Ramped HiPot, Enhanced reference Surge waveform, Improved PI/DA test, Improved DC HiPot, Improved Resistance Test, More sensitive Surge test
  • The AWA IV has been designed around PC104 technology that allows the instrument to work efficiently without fans to cool the processor. This computer performs all requested tests, stores the results, and continuously monitors voltage levels while testing. If the computer detects a weakness in the insulation, the test is interrupted, the operator is alerted, and all test parameters at the time of the interruption are reported. This instrument performs this operation in microseconds with a higher degree of precision and safety than can be achieved through manual testing
  • The AWA IV is the only high-voltage tester that can be pre-programmed in the office and implemented in the field. Pre-built work orders or routes define which motors to test, the order of execution, and parameters for each test including voltages, duration and pass-fail limits. Operators can then conduct tests in the field simply by connecting to the pre programmed motor, ensuring a higher degree of reliability in testing procedures. This allows repeatable maintenance testing, which is vital to a successful PM program
  • When testing is complete, results can be saved as part of each motor''s permanent test record. This kind of documentation is critical to a successful reliability program. With the AWA IV, test results are collected, stored, recalled and managed using standard MS Access® relational database format. Reports can be generated for trending, insurance requirements for customers through the AWA software or MS Word® file formats. These database files make it easy to transfer information to maintenance management software or other database tools and Access® is ODBC compliant
  • The Baker AWA IV incorporates the most advanced inter-turn capabilities ever offered in a field portable instrument. Computer control and waveform monitoring are dramatic enhancements of the manually controlled instruments previously available. As with the DC HiPot test, the AWA IV begins surge generation at low voltage. Each pulse applied to the winding is digitized and the resultant waveform is compared to previous waveforms to detect any signs of turn-to-turn shorting. Comparison is done by the patented Pulse to Pulse Error Area Ration (PP-EAR) technique. This method is sensitive to less than a 1% variance between coils. In addition, shorts among windings in parallel can be located, something that was never possible before by visually comparing waveforms. With the AWA IV, fewer pulses are applied to the winding, reducing the power required to perform the surge test. Since each and every pulse is analyzed, it becomes the new reference waveform as test voltage is increased up to the specific withstand level. If no turn-to-turn weakness is detected, the final pulse waveform is stored as the reference waveform for all subsequent tests.
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