The MTR105 is a dedicated Static Motor Tester with Megger’s tried and trusted suite of insulation resistance tests (IR), plus all the great traditional features and reliability of Megger’s testers.

The MTR105 takes the test abilities of Megger’s proven IR test instruments adding DLRO four wire Kelvin low resistance test, inductance and capacitance tests to provide a versatile motor tester, all packaged in a robust hand held instrument, which up to now has simply not been available.

• Full colour graphic display
• 3 Phase insulation resistance
• Temperature correction for insulation resistance
• Guard terminal
• DLRO four wire Kelvin

Additionally the MTR105 incorporates temperature measurement and compensation (for IR tests), motor direction of rotation plus supply phase rotation tests.

These new test abilities make the MTR105 a real world, versatile, hand held motor test instrument.

The Megger Baker ADX is an innovative and transformational leap forward for motor testing in today’s demanding workplaces.  Developed using Linux on an Android operating system, the ADX software is easily updated via a Lan or Wi-Fi connection.  The large 10.4-inch touchscreen is tough and daylight viewable.

A fundamental requirement of hard-working test equipment is having the optimal test lead set. The ADX has IEC61010 safety compliant, combined high voltage / low voltage detachable Kelvin test leads, rated at 16 kV with a large jaw opening. The leads are available individually or in sets, so damaged leads can be replaced in the field without sending the equipment away—saving time and money.

An internal battery backup allows the ADX to be moved between assets without having to shut down and reboot for each new location.

The ADX family includes models designed to perform tests at voltages up to 15 kV. The five main options include 4 kV, 6 kV, 12 kV, 15 kV, and 15 kV-A (Armature). Couple the ADX with a PPX to increase test voltages up to 40 kV for testing high voltage assets.

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• Asset-centric approach promotes turnkey testing for operators
• Separating Asset from Installation provides greater insight into asset service needs and issues
• PowerDB Dashboard secure cloud-based analysis software
• Choice of Manual, Automatic, or Sequence testing
• Screen-level context sensitive help
• Adaptable search capability
• Asset management tools

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In fact, it is the only high-voltage test instrument that a user can program to perform a specific set of insulation tests prior to being in the field, and then use as programmed in the field. The AWA-IV is also used to assure quality of motor rebuilds or new production motors before they are placed into service.

The Baker AWA-IV is a simple-to-use test instrument with an intuitive, touch-screen user interface. It delivers accurate, repeatable results regardless of the skill level of a given operator. It easily detects problems that low-voltage testers cannot find by performing a comprehensive set of both high- and low-voltage tests. Results are presented in simple, easy-to-understand graphs and reports that give motor maintenance professionals the information they need to minimize costs and unplanned downtime. The ability to apply identical tests to a given motor over a long period allows trends to be analysed, revealing the degradation of insulation over the motor’s lifetime. This allows maintenance professionals to predict when a motor may fail, and plan its replacement accordingly.

The AWA-IV offers computer control and waveform monitoring advantages over equivalent manually controlled instruments. The analyser's embedded computer conducts the tests, stores the results and continuously monitors voltage levels while testing. If the analyser detects a weakness in the insulation during a given test, the test is interrupted, the operator is alerted and all test parameters at the time of the interruption are reported.

The AWA-IV’s benefits can be extended to low-impedance coils, such as armatures, through the use of the Baker ZTX low impedance coil accessory. The ZTX, which includes the ATF5000 commutator probe accessory, allows the AWA-IV to apply surge tests to coils which require higher currents.

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• Range includes 2 kV, 4 kV, 6 kV and 12 kV models
• Testing capabilities include: surge, winding resistance, Megohm, PI, DA, continuous ramp DC step-voltage, and DC hipot tests
• 12 kV HO (high-output) version for performing surge tests on large motors and generators
• Compatible with Baker PPX Power Packs to extend insulation testing voltage range (6 kV, 12 kV and 12 kV HO versions only)
• IEEE- and IEC-compliant surge test

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The Baker DX series can apply a wide set of off-line electrical tests to assess the condition of motors and coils.

In a motor repair shop, or for new production motors, the Baker DX gives confidence that a motor is correctly wound and insulated, before it’s deployed in the field.

The standards-compliant surge test – a signature feature of Baker testers for decades – is the only test that can safely expose turn-to-turn insulation weaknesses. The Baker DX can find early indications of insulation weakness and faults in windings, between phases, coil-to-coil and in groundwall insulation. It can identify if contamination is impacting insulation strength. It can also detect problems with connections such as feed cable insulation weakness, motor imbalances, opens or high resistance.

The DX’s benefits can be extended to low-impedance coils, such as armatures, through the use of the Baker ZTX low impedance coil accessory. The ZTX, which includes the ATF5000 commutator probe accessory, allows the DX to apply surge tests to coils which require higher currents.

Baker Surveyor DX Software

Surveyor DX software enables Baker DX operators to use a personal computer to store more test data, generate and view reports across the full spectrum of  Baker DX tests, and share and compare analysis with other maintenance personnel using data from multiple analyzers. Learn more from the Baker Surveyor DX datasheet.

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They help verify the condition of insulation on form-wound coils, high voltage AC motors and large DC motors, and are ideal for use in manufacturing, predictive maintenance, and motor rewind and repair settings.

In order to test large, high voltage motors that typically drive the critical processes in industry, higher test voltages and currents than those available in portable motor analysers are required.  Baker Power Packs (when used in concert with a Baker static motor analyser) verify insulation at voltages up to 40 kV, with up to 2600 A of current available.

• Used to extend insulation testing range of AWA-IV static motor analysers and DX analysers
• Test voltages from 5 kV to 40 kV
• Available in three models (PPX30, PPX40, PPX30A)
• Mobile, large-wheeled cabinet for easy transport to the test area

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Extend the functionality of Baker DX and Baker AWA-IV analyzers to tests of low-impedance DC windings or coils

Low-impedance coils typical of DC armatures, coils or interpoles can make it difficult to detect insulation weaknesses. The low inductance characteristics of armature windings require high test currents to achieve the minimum voltage levels needed to accurately detect insulation weaknesses. The Baker ZTX provides the necessary current at low test voltages to find insulation problems when using Baker static motor analyzers.

Compatible with 6 kV, 12 kV and some 15 kV models in the Baker DX and Baker AWA-IV static analyzer families, the ZTX extends the types of coils that can be tested.

The device also helps locate commutator spurs sometimes produced by under-cuts in the manufacturing process.

Probe and clip fixtures provide easy access through inspection plates on assembled motors, which makes it easier to perform tests on field pieces or interpoles.

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• weak or damaged winding insulation
• turn-to-turn (winding) shorts
• turn-to-turn (winding) opens

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With the Baker NetEP, maintenance professionals can safely gather performance data on critical motors around the clock, 365 days a year. They can monitor the condition of motors and the equipment they drive from the convenience and safety of a central office. The system helps reduce costly unplanned downtime by providing information that improves maintenance decision making and planning. The dashboard display of the NetEP’s associated software clearly shows motors in an alarm condition.

The NetEP goes beyond the capabilities of portable testing by providing a timeline of trend information that maximizes visibility into motor system health and performance. Maintenance professionals can use NetEP to monitor motor system performance from virtually anywhere in the world with a PC using the system’s Web-accessible interface. Motor rewinders, for example, can now offer remote electrical and mechanical monitoring of their customers’ critical machinery.

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• Monitors motor systems for any degradation of performance, poor power quality and adverse load conditions
• Built upon the proven motor system monitoring technologies of the Baker EXP4000 Dynamic Motor Analyser
• Features proprietary data collection mechanisms that are coupled with standardized computer server and network technologies
• Operates with a single voltage measurement connection per voltage bus (up to 7 different voltage busses per single NetEP unit), and current sensors installed for each motor being monitored
• Continuously monitors and analyses more than 120 electrical parameters on up to 32 motors, compares results to user-defined thresholds and generates alerts if these threshold limits are crossed

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It tracks multiple data types to identify trends that indicate potential problems. Voltage and current are measured and a series of parameters are then calculated, including power quality, rotor bar condition, % load, % operating efficiency, average torque value, torque ripple showing variation within process, monitoring of start-up transients (volts, current and torque), and much more.

The EXP4000 enables root-cause analysis, starting with separation of mechanical and electrical issues that may be present in a motor-machine system. By monitoring many different parameters and using advanced software algorithms, the EXP4000 is designed to pinpoint challenges across the system, including those with the power supplied, variable-frequency drive, the motor, and the load placed on the motor. Examples of the wide range of problems it may detect include:

• wrong settings on a supply transformer's taps, poorly distributed single-phase loads, overloading (saturating) supply transformers, excessive VFDs on low voltage busses, excessive non-harmonic frequencies on a VFD, missing line-inductors on VFD applications and missing or open power factor correction capacitors
• thermal overloading of the motor
• current related problems
• broken rotor bars, mechanical issues, transient overloading, mechanical imbalances along with bearing problems and load issues such as cavitation

The Baker EP1000 Dynamic Motor Link is an optional accessory which is installed permanently inside the motor control cabinet (MCC), and which provides a low-voltage connection port on the cabinet’s door. A technician can simply connect the EXP4000 to that port without the need to open the cabinet or power down the motor. This provides obvious safety benefits, as well as improved convenience and productivity where a large number of motors need to be monitored.

Through use of the Baker EXP4000, along with a static motor analyser, such as the Baker AWA-IV, maintenance professionals have the means to minimize unexpected failures while maximizing uptime of motors and the machinery that they drive.

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• Monitors and assesses conditions across a running “machine system” that impact the health and performance of the motor within the system
• Evaluates the quality of incoming power fed to motor
• Assesses motor performance indicators
• Tracks the amount and condition of load placed on the motor
• Instrument connection options: at a motor junction box, at the instrumentation cabinet, inside a motor control cabinet (MCC), from outside an MCC (requires a Baker EP1000 (dynamic motor link)

The fully-automated unit performs the required set of tests that motor manufacturing and rebuild shops need for quality assurance and control. AC hipot, DC hipot, surge and resistance tests are standard.

In operation, an armature to be tested is loaded onto the armature indexing stand. This ruggedized, custom built, armature test fixture enables quick and safe connection of an armature to the system. Since many armatures are heavy and cumbersome, the purpose of this fixture is to provide a quick connection of armatures to the tester and provide a higher degree of safety to the operator. The armature is rotated by a rubber drive wheel, which is in contact with the armature and is propelled by a computer-controlled stepper motor. Usually, one or two optical sensors are used to sense the commutator slots as the armature rotates. This fixture is designed for years of heavy-duty operation in a manufacturing environment.

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• Traction armature quality control test system for motor manufacturing applications
• AC and DC hipot (with micro-arc detection to detect any breakdowns to ground – the only proven method to accurately detect any such faults), surge, bar-to-bar, and temperature-compensated resistance test capabilities
• User-programmable pass/fail limits
• Under 18 minutes to test as many as 200 armature bars (once the system is programmed and set up)

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The Baker WinAST and Baker HV WinAST are semi-custom, fully automated, high-volume electric motor testing units that can test thousands of motors, generators or coils per day, depending upon the size and types of motors, or the testing fixtures used.

These automated stator testers are used to test AC motors ranging in size from fractional to 5000 hp, as well as DC motors up to about 1500 hp. Manufacturers of motor windings, stators, coils, alternators, and rotors use the Baker WinAST to avoid shipping dead-on-arrival (DOA) motors, or products that prematurely fail or malfunction after being placed in service.

Unlike other volume manufacturing test approaches, this system does not require a master winding to perform routine production tests, nor does an operator need to set test voltages or pass/fail limits when production is switched to another motor model. All test parameters are programmed into a master, “known-good” data file, an operation that can be performed in minutes. When a master file is created, the user is prompted for all necessary information about a given product to be tested, and when complete, the file is permanently stored within the 160 GB of system storage.

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• Fully automated, full-spectrum quality control testers for motor manufacturers
• Built to each customer’s specifications using proven, reliable standard components in a cabinet style rack design
• Standard tests include: AC and DC hipot (with micro-arc detection to detect any breakdowns to ground – the only proven method to accurately detect any such faults), surge, inductance, corona and temperature-compensated resistance test capabilities
• Rotation-direction test (optional) for testing stators and field coils
• Configurable with a range of additional test capabilities
• Highly-sensitive computer-controlled testing, analysis and report generation software making testing virtually automatic

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