Neutral zone testers

The neutral zone in a DC motor is a crucial space its function and longevity.

The positioning of the carbon brushes in the neutral zone is crucial to prevent sparking at the commutator and maximize motor efficiency:

  • Sparking (commutation)
    When an armature coil is short-circuited by the carbon brush, coil voltage in this coil should be voltage zero voltage . If the voltage there were too high, this would lead to a short-circuit current and severe sparking between the brush and the commutator segment.
  • Torque
    If the carbon brushes are not in the optimal neutral zone position, the Motor will no longer deliver its optimal torque.

The neutral zonecan be Motor in the test field while Motor is running.
However, the neutral zone tester also allows this to be done with a good degree of accuracy without having to Motor the Motor .

Key facts:

  • Neutral zone adjustment when the machine is at a standstill
  • Very simple and safe adjustment
  • Can also be used ideally as a preliminary adjustment

MotorAnalyzer1

The entry-level model for your engine service

CHECK YOUR MOTORHEALTH!

For electrical machine manufacturers
For electric motor repair
For maintenance, servicing, and repair

Asynchronous, synchronous, and DC machines, brakes, transformers, coils, etc.
Troubleshooting and fault location
Adjusting the neutral zone on DC motors

Lightweight and portable

Off-grid operation
PC software for printing and Save

View product

MotorAnalyzer3

The mobile ALL-IN-ONE professional model for your engine service

CHECK YOUR MOTORHEALTH!

For electrical machine manufacturers
For electric motor repair
For maintenance, servicing, and repair

Asynchronous, synchronous, and DC machines, brakes, transformers, coils, etc.
Troubleshooting and fault location
Adjusting the neutral zone on DC motors

Mobile

Off-grid operation
PC software for printing and Save
Communication with
• «»PC via Bluetooth

View product

Good to know:

The neutral zone adjustment

Adjusting theneutral zoneis not a test, but rather a setting procedure that is performed when the machine is at a standstill.

The test device/adjustment device is connected to the field winding and the brush bridge. Signals generated by the test device at the field winding and detected at the brush bridge are evaluated.

The testing device indicates how far the angular position of the brush bridge deviates to the left or right from the optimal neutral zone. By adjusting the angle of the brush bridge, the position is adjusted so that the smallest bar deflection is achieved. The brush bridge is mechanically fixed in this position. This completed the process.

The SCHLEICH – Expect more!

Neutral zone adjustment devices

 
  • TEST VOLTAGE 10 V
  • Safe manual adjustment process, as the machine is stationary during adjustment.
  • Support through very helpful graphical display of the deviation the ideal neutral zone

Customized testing devices and systems

 
  • Single and combination test devices
  • Testing machines/testing systems with relay matrix
    (2, 3, 4, 6, 9, 12, 15, 18, 21 … 100 terminals)
  • Complete test workstations
  • Production lines with transfer systems
  • EOL workstations
  • large-scale plants

full-service

 
  • Professional advice with technical expertise
  • Careful initial commissioning
  • Regular certified calibration
  • After-sales support from our service team
  • Service by phone, remote maintenance, or on-site
  • Customized training courses
  • SCHLEICH.CARE.PREMIUM

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We would be happy to provide you with comprehensive support and advice regarding all our products and services.
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