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  • T&R TPT9000 Transformer Polarity Tester
  • T&R TPT9000 Transformer Polarity Tester

T&R TPT9000 Transformer Polarity Tester

T&R approved distributor and service centre.

Includes: Proving unit, black fused lead, red fused lead, blue fused lead, 1m brown fused lead, operating & maintenance manual, carry set case, 9V battery.


The T&R TPT9000 is designed for use on transformers with the power off. The TPT9000 checks that the polarity of the current and voltage transformer has been connected correctly. Do not connect if the system is live.

The function of the TPT9000 can be checked using the included proving unit. Fit the proving unit into the output terminals of the TPT9000. The switch on the front of the proving unit can be set so that it appears as either a forward or reverse connected transformer.

Select forward or reverse and then press the test button. The corresponding forward, reverse or error LED will light.


Ease of use.
Polarity testing of voltage transformers.
Polarity testing of current transformers.
Detection of incorrect connection.
Proving unit supplied as standard.

T&R TPT9000 Transformer Polarity Tester Specifications
Environment The TPT9000 is designed for use in industrial and electrical substation environments.
Category rating CATIII.
Maximum altitude 2000m.
Temperature 0°C to 45°C operating
-20°C to 60°C storage.
Relative humidity 90% non-condensing.
Protection IP20 in use.
Power PP3 9V battery.
Dimensions 118 x 79 x 32 mm
With Proving Unit: 143 x 79 x 32 mm.
Weight 600g.


TPT9000 Datasheet

PDF Specifications of the T&R TPT9000 Transformer Polarity Tester.

Download (5.32M)

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T&R TPT9000 Transformer Polarity Tester

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