T & R Test Equipment TPT9000 Transformer Polarity Tester
Precision. Reliability. Simplicity.
The T & R Test Equipment TPT9000 Transformer Polarity Tester — also known as the flick tester — delivers fast, reliable polarity verification for current and voltage transformers. Designed for commissioning engineers who demand accuracy, it provides a robust, field-ready solution for polarity testing on “dead” systems.
Compact, intuitive, and built for safety, the TPT9000 ensures quick results with automatic polarity detection and clear LED indication.
Get a quote today and add proven British engineering to your testing process.
Professional Polarity Testing Made Simple
The T & R Test Equipment TPT9000 is a compact, battery-powered Transformer Polarity Tester designed for fast, repeatable results in substations, industrial installations, and transformer manufacturing environments.
By automatically identifying forward and reverse connections, the flick tester eliminates guesswork and enhances commissioning efficiency.
A built-in proving unit allows users to confirm instrument functionality on-site, ensuring complete confidence in every test. The magnetised rear panel keeps the unit secure on metallic surfaces, enabling convenient hands-free operation in demanding work environments.
T & R TPT9000 Key Features:
- Automatic polarity detection for current and voltage transformers
- Plug-and-play design – simple, single-button operation
- Built-in proving unit supplied as standard
- Compact and lightweight – only 0.6 kg
- Fused 600 V CAT IV test leads for operator protection
- Magnetised rear panel for easy mounting during testing
- Clear LED indicators for Forward, Reverse, Error, and Battery Low status
- Battery voltage monitoring to prevent inaccurate tests
- Supplied with full accessory kit and protective carry pouch
Technical Specifications:
| Specification | Details |
| Model | T & R Test Equipment TPT9000 |
| Type | Transformer Polarity Tester / Flick Tester |
| Operating Voltage | 9 V DC (PP3 battery) |
| Environment | Industrial and electrical substations |
| Category Rating | CAT III |
| Altitude | Up to 2000 m above sea level |
| Operating Temperature | 0°C to 45°C |
| Storage Temperature | –20°C to 60°C |
| Protection Rating | IP20 (in use) |
| Test Leads | 600 V CAT IV fused leads, shrouded 4 mm connectors |
| Fuse Rating | F500 mA HRC (replace with identical type) |
| Dimensions | 118 × 79 × 32 mm |
| Weight | 0.6 kg |
| Indications | Green = Forward Red = Reverse Amber = Error |
| Battery Check | Automatic, prevents testing below safe voltage |
Built for Safety and Dependability
The T & R Test Equipment TPT9000 Transformer Polarity Tester is designed for use on de-energised (“dead”) systems only. Each fused lead provides 600 V CAT IV protection, safeguarding both operator and equipment.
Automatic detection prevents testing on live or incorrectly connected transformers, while the low battery cut-off feature ensures consistent test accuracy.
The flick tester’s solid construction and magnetised case make it ideal for demanding field environments.
Applications:
- Transformer commissioning and maintenance
- Current transformer (CT) and voltage transformer (VT) polarity checks
- Substation and industrial electrical testing
- Factory acceptance testing and quality control
- Technical training and education
Why Choose the T & R Test Equipment TPT9000?
- Manufactured in the UK by T & R Test Equipment, specialists in high-voltage and commissioning instruments
- Trusted by commissioning engineers worldwide
- Portable, rugged, and easy to maintain
- Proven design backed by calibration and service support
Order or Enquire Today
Ensure polarity testing accuracy and field reliability with the T & R Test Equipment TPT9000 Transformer Polarity Tester — the compact flick tester engineered for professional use.
▶TPT9000 Transformer Polarity Tester Demo
What comes with the TPT9000?
- T & R Test Equipment TPT9000 Transformer Polarity Tester
- Proving unit
- Four fused 4 mm test leads (brown, blue, red, black)
- Two red and two black crocodile clips
- Spare fuses (4 × T0.5 A 20 mm)
- PP3 9 V battery
- Calibration certificate
- User manual and quick start guide
- Protective carry pouch
NB: TPT9000 requires a single PP3 9V battery to operate. Battery level is automatically monitored - the device will not perform a test if the battery voltage is below a useable level.
❓ Frequently Asked Questions (FAQ)
Q1: What does the T & R Test Equipment TPT9000 do?
A. It determines the polarity of current and voltage transformers by injecting a short current pulse and detecting its direction — verifying whether connections are forward or reverse.
Q2: Why is the TPT9000 called a “flick tester”?
A. The name refers to the brief current pulse or “flick” the instrument generates to test polarity. This quick, non-destructive pulse provides immediate visual confirmation via LED indicators.
Q3: Can it be used on live circuits?
A. No. The TPT9000 must only be used on dead systems. Connecting it to live equipment could damage the unit or pose a safety risk.
Q4: Does it include a proving unit?
A. Yes. A proving unit is supplied as standard for functional verification of the tester before and after use.
Q5: What makes the TPT9000 safe for field use?
A. It includes CAT IV fused test leads, automatic error detection, and a low battery safeguard to prevent unreliable results.
Q6: How long does the battery last?
A. The TPT9000 operates on a single 9 V battery, designed for extended field use with automatic voltage monitoring.
Note: Be sure to check the official datasheet before buying, and the user manual before using any test equipment. Need training? Just reach out - we’re happy to help