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iTIG Winding Analyzer

The Electrom iTIG is a complete portable Surge Tester and Winding Analyzer. In both AC and DC rotating equipment, assembled or disassembled, it finds problems far beyond those that can be found by a hipot tester or megger.

Because of the technology used in the iTIG Surge Tester, it will find insulation weaknesses at a given test voltage where other surge testers will not.

The iTIG Winding Analyzer is a:

  • Surge tester
  • DC Hipot tester
  • Megohm tester
  • Step voltage tester
  • Armature tester
  • Rotor bar tester (AC rotor test)
  • Dielectric absorption tester
  • Polarization index tester

The iTIG Surge Testers and Winding Analyzers are used to analyze the condition of insulating systems.


iTIG Surge Testers will detect shorts or weak insulation in:

  • Stators
  • Armatures, shunts, interpoles and series fields
  • Form coils
  • Transformers and more.

They can also test for damage in AC rotors with the use of a Rotor Bar Clamp, no other accessories needed.


The iTIG Surge Tester / Winding Analyzer is used for the following purposes:

  • Finding insulation faults or weaknesses:
    • To ground
    • Turn to turn
    • Coil to coil
    • Phase to phase
  • Quality assurance when rewinding or producing new equipment
  • Preventative and Predictive maintenance

Why invest in an iTIG Surge Tester / Winding Analyzer?

  1. Finds faults or insulation weaknesses where other surge testers do not
  2. Finds faults and weaknesses you cannot detect with a Megger or Hipot tester
  3. Easy to use
  4. Unlimited data storage available
  5. Only purchase features you need now, upgrade later (in the field) if needs change
  6. Portable with portable 30kV Power Pack option

  1. Finds faults or insulation weaknesses where other surge testers do not!


    The objective with a surge test is to set up conditions in a coil, motor or other piece of rotating equipment that replicates extreme operating conditions in order to see if the coil/wire insulation meets dielectric requirements. This is done without damaging the motor and within motor specifications. If requirements are not met and the insulation is shorted or weak, a flashover will occur between turns or phases. The conductor for the flashover is ionized air surrounding the windings or coils. The air surrounding the windings is ionized as a result of the oscillating electrical fields.
    To replicate motor operating conditions the Electrom iTIG Surge Tester offers the following:
    • Surge test pulses at line frequency, 50/60 Hz. To achieve and maintain ionization similar to motor operating conditions, line frequency surge test pulses are ideal. Many surge testers pulse at lower frequencies such as 5Hz.? Two live surge test channels. Surge testers are often called Surge Comparison Testers because two tests of different coils or windings are compared. Differences in the two tests indicate some type of fault. Many surge testers only have one surge channel. When they do the live surge test is compared to a stored surge test.
    • With the iTIG Surge Tester two phases of a 3 phase motor are compared live instead of comparing one live phase test to a stored phase test. Again, this better replicates operating conditions of rotating equipment.
      • The two live surge channels set up a voltage gradient between the two phases similar to what happens during operating conditions. Higher voltage gradients mean a greater possibility for flashover between phases with weak insulation compared to a surge test with one live phase.
      • With two live channels any random and temporary phase shift between the two phases and any instability between the two waveforms produced by the surge tester will easily be seen. When one waveform in the surge comparison test is a picture, the opportunity to miss faults increase.


Result:

  • The 50/60Hz pulse rate of the iTIG Surge Tester along with the two live surge channels create a higher level of ionization of the air surrounding the windings and a higher voltage gradient.
  • The iTIG Surge Tester therefore replicates operating conditions of the motor to a higher degree than instruments operating at for example 5Hz with one live surge test channel.
  • Consequently some faults are easier to see and less likely to be missed, and...
  • The Electrom Surge Tester will detect faults other surge testers do not see. It detects them at lower surge test voltages. This means faults occurring around the surge test voltage specified by standards may be detected by the iTIG Surge Tester but not by all other surge testers.

  1. Finds faults and weaknesses you cannot detect with a megohm meter or hipot tester


    A megohm meter is used to measure the insulation resistance in mega ohms between a conductor (winding) and ground or between conductors of separate circuits. It is used to detect the level of contamination in electric motors, armatures and generators. A megohm test should always be done before any high voltage test is performed such as a hipot test or surge test. Insulation resistance measured by a megohm tester is not a measure of dielectric strength. It is not directly related to dielectric strength and will therefore not predict at which voltage level the insulation will fail. Hipot testers do measure the dielectric strength. They are used to find ground faults or weak insulation to ground. Neither a megohm tester nor a hipot tester can find turn to turn, coil to coil or phase to phase shorts or insulation weaknesses. These common problems are only detected with a surge tester.
  1. Easy to use


    • Large color LCD touch screen display
    • Large displays of test and output voltages, resistance (Megohms) and leakage current
    • Communicate with and adjust the iTIG Surge Tester through the touch screen, remote mini keyboard included, or standard mouse/keyboard
    • Easy retrieval of data and reports from database software with multiple report printing options
    • Computer-controlled scope functions; surge test scope settings can be stored by motor s/n for easy re-testing
    • Status messages tell the user what is going on
    • Screen pictures can be stored together with test data when wanted - use for training, application support and reports
  1. Unlimited data storage available


    Customer information, motor specifications, test data including surge test waveforms and test notes are stored in the iTIG computer. The data can also be stored on or transferred to a USB memory stick that plugs into the front of the iTIG Surge Tester / Winding Analyzer. The data is transferred to a separate computer using the memory stick.
  1. Only purchase features you need now, upgrade later if needs change


    The iTIG Surge Tester / Winding Analyzer comes in different models from a basic surge tester / winding analyzer that does not store data, to a full featured model with database and reporting software included. All models can be upgraded in the field to any higher level including the full featured model D Surge Tester. The modifications are simply done through software downloads.
  1. Portable with portable 30kV Power Pack option


    The iTIG Surge Tester / Winding Analyzer is portable and housed in a rugged case. To test large and high voltage rotating machines such as slow speed 4,160V or 13,800V electric motors the portable Power Pack is needed. It is used together with the iTIG as a surge tester and when hipot test data is to be stored. It can be used as a stand-alone hipot tester. It comes in the same rugged case as the iTIG Surge Tester / Winding Analyzer. The iTIG Surge Testers and Winding Analyzers are used to analyze the condition of insulating systems. iTIG Surge Testers will detect shorts or weak insulation in:
    • Stators
    • Armatures, shunts, interpoles and series fields
    • Form coils
    • Transformers and more. They can also test for damage in AC rotors with the use of a Rotor Bar Clamp, no other accessories needed.


industrial surge tester, windiing analyzer, hipot tester, megohmmeter.

ELECTROM INSTRUMENTS LOVELAND COLORADO USA

Phone: +1 970-669-6609 email: info@electrominst.com