BA75 oil tester

The BA75 oil tester by b2 electronics is a portable Breakdown Analyzer for on-site testing of transformer oil.

BA75 oil tester

BA75 oil tester

The dielectric strength of insulating oil can be tested in a simple, quick and fully automatic way, without the need to ship oil samples to a test laboratory.


The plant operator is in a position to decide ad hoc on the need for substitution of the transformer oil and to initiate respective measures.


The automatically generated test reports are provided in pdf-format and can be stored on a USB stick.


With a weight of only 22 kg, the BA75 oil tester is ultra-light and ideal for mobile use.


The test voltage is automatically controlled and increased to a maximum level of up to 75 kV rms.

Flashover voltage is measured with an accuracy of ±1 kV over the whole voltage range.


The extremely short switch off time at flashover is below 5 μs. Thus the pollution of the oil by the electric arc is negligible.


In addition, this allows nondestructive testing of synthetic oil, ester oil and silicone oil.


The BA75 has an integrated rechargeable 12 V battery with a capacity of 7.2 Ah suitable for a test time of approximately 12 hours.


The device can also be operated on 85 V – 264 V (50Hz/60Hz) AC voltage supplies or 12 V DC power supplies.

The BA75 oil tester – THE outstanding Breakdown Analyzer

Due to the following features the BA75 oil tester is the outstanding stand-alone Breakdown Anlayzer of its class:


  • Compact and ultra-light
  • Automatic test sequences meeting all relevant standards
  • Extremely short switch-off time
  • nondestructive testing of synthetic oil, ester oil and silicone oil
  • Easy to use
  • PC Software
  • Battery / mains operated
  • Ultra bright color display
  • USB interface
  • Bluetooth™ connection
  • Integrated printer
  • Customer specific test sequences programmable
  • Automatic magnetic stirrer
  • Automatically generated test reports
  • Extended operating temperature


Other members of the BA series