T&R TPT9000 Transformer Polarity Tester
Reliable polarity verification is essential during transformer installation and commissioning. The T&R TPT9000 Transformer Polarity Tester provides a fast and simple method to confirm the polarity of both current and voltage transformers. Its compact design and plug and play operation allow engineers to perform tests quickly in the field.
Lightweight construction makes the instrument easy to carry and use in substations and electrical environments. At the same time, the T&R TPT9000 delivers dependable polarity testing through automatic detection technology. Clear LED indicators display forward, reverse and error conditions, allowing users to interpret results instantly.
Reliable Transformer Polarity Testing
Accurate polarity verification helps prevent wiring errors and incorrect transformer connections. The T&R TPT9000 generates a short current pulse to determine the direction of transformer response. As a result, engineers can confirm whether connections are correct before commissioning equipment.
In addition, the instrument identifies incorrect wiring through automatic detection systems. This feature reduces the risk of installation mistakes and improves testing confidence. Because it operates on dead systems only, the tester supports safe commissioning procedures.
Designed for Field Use
Field engineers often require reliable equipment that is easy to transport and operate. The T&R TPT9000 Transformer Polarity Tester meets this need through a compact enclosure weighing only 0.6 kg. A magnetised rear panel also allows convenient mounting on metal surfaces during testing.
Power is supplied by a single PP3 9V battery with integrated battery monitoring. This function prevents testing when voltage drops below a safe level. Combined with CAT IV fused test leads and a full accessory kit, the device provides a practical and dependable testing solution.
Key Features
- Automatic polarity detection for current and voltage transformers
- Simple plug and play operation using a single control button
- Compact and lightweight handheld design for field testing
- Integrated proving unit supplied for functional verification
- Clear LED indicators show forward reverse and error states
- Magnetised rear panel allows mounting on steel structures
- Battery monitoring prevents operation at unsafe voltage levels
- Supplied CAT IV fused test leads improve operator protection
- Long battery life supports extended commissioning work
- Protective carry pouch included for safe transport
Technical Specifications
| Manufacturer | T&R Test Equipment |
| Model | TPT9000 |
| Product type | Transformer polarity tester and flick tester |
| Operating voltage | 9 V DC supplied by PP3 battery |
| Category rating | CAT III measurement category |
| Protection rating | IP20 during operation |
| Operating environment | Industrial and electrical substation environments |
| Maximum altitude | Up to 2000 metres above sea level |
| Operating temperature range | 0°C to 45°C |
| Storage temperature range | -20°C to 60°C |
| Test lead specification | 600 V CAT IV fused leads with shrouded 4 mm connectors |
| Fuse rating | F500 mA HRC replace with identical type |
| Polarity indication | LED indicators for forward reverse and error conditions |
| Battery monitoring | Automatic low voltage monitoring prevents inaccurate testing |
| Dimensions | 118 x 79 x 32 mm |
| Weight | 0.6 kg |
Document Downloads
What’s Included
- User manual
- Calibration certificate
- Spare fuses
- PP3 battery
- Proving unit
- 4 x 1 m fused 4 mm test leads
- 2 x red crocodile clips
- 2 x black crocodile clips
- Quick start guide
- Black carry pouch