Why Omicron Testrano 600 is revolutionary?

Discover Omicron Testrano 600

Touch-and-Test with TESTRANO 600.

Powerful, compact and designed for power transformer testing.

Three-phase test system for comprehensive power transformer testing.

TESTRANO 600 is the world’s first portable, three-phase test system which supports all common electrical tests on power transformers.

Compared to conventional single-phase test sets the three-phase capabilities of TESTRANO 600 offer several advantages:

  1. One setup can be used to perform various tests,
  2. The rewiring effort is significantly reduced,
  3. Testing time can be cut down to a third of the time,
  4. Increased safety as less trips up and down are needed.

TESTRANO 600 provides you with a convenient way of testing to gain a comprehensive insight into the condition of every part of your power transformer.

It can be operated using TESTRANO TouchControl on the integrated display, or by using our Primary Testing ManagerTM software on your laptop.

This makes it ideal for routine and diagnostic testing onsite or during factory acceptance tests (FAT).

The Primary Test ManagerTM (PTM) is the ideal software tool for the diagnostic testing and condition assessment of your power transformers.

It supports you in performing measurements and guides you step by step through the entire test procedure, in order to make testing faster, easier, and safer.

True three-phase power transformer test set:

  1. Powerful device with 3 x 33 A DC or 400 V AC
  2. Reduced wiring effort as same wiring can be used for different tests
  3. Three times faster testing
  4. Automatic tap changer control and measurement, no accessory required
  5. Fast and reliable demagnetization of transformer’s core.



Transformer turns ratio (TTR) measurements verify the operating principle of a power transformer to detect shorted turns and open- circuited conditions.

Three wires are all you need.

TESTRANO 600 is connected to the high-voltage and low- voltage side of the transformer by using specially designed multi-purpose cables.
The cables, which support a 4-wire (Kelvin) connection, only have to be connected once at the transformer’s terminals.

Then all test outputs and measurement inputs are automatically controlled by TESTRANO 600 without the need to change the connection again.
To automatically switch between different tap positions of an on-load tap changer (OLTC), a multiplug cable can be connected.

This cable can also be used to record motor current and voltage of the OLTC.

Active discharge and fast demagnetization
The active discharge function (patent pending) of TESTRANO 600 automatically discharges the winding within a matter of seconds, e.g. after resistance measurements have been performed. This speeds up testing time and increases the safety for the tester.

With TESTRANO 600, you can quickly demagnetize the transformer’s core before and after testing.

This reduces the risk of high inrush currents during energization and of influences of a magnetized core on other tests.
Safety first

TESTRANO 600 follows the “safety first” principles and fulfills the highest safety standards by providing an emergency stop button as well as safety and warning lights.

Another example are the custom-designed connector plugs which prevent you from connecting the wrong outputs. In addition, the simple wiring concept with labeled connection leads, leaves almost no room for errors.

Rugged and compact design
With TESTRANO 600 you get all the required components in just one box. This makes testing quite comfortable and the system, weighing only 20 kg / 44 lbs, easy to transport.

The rugged design makes it ideal for on-site testing as well as in rough environments.

Comments (3)

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