High Precision 3-Phase TTR Meter True Three-Phase Transformer Ratio Tester for CT/PT Testing
The transformer turns ratio test, or TTR test, confirms that the transformer has the correct ratio of primary turns to secondary turns. Using this test correctly can help to identify tap changer performance, shorted turns, open windings, incorrect winding connections and other faults inside transformers.
Key Features
- Automatically measure the wiring group
- Automatic group conversion for single-phase, three-phase transformers and transformers
- Automatic phase sequence switching
- Automatic range switching
- Automatic calibration table
- Automatic calculation of relative error after inputting standard transformation ratio
- Automatic test voltage cutoff after measurement completion
- Automatic data saving with printing capability and storage for 20 historical measurements
Technical Specifications
| Turns Ratio Measurement Range |
1:1 ~ 1000:1 |
| Group Measurement Range |
1~12 groups |
| Measurement Accuracy |
±0.1% (turns ratio ≤ 100:1); ±0.2% (turns ratio ＞ 100:1) |
| Working Power Supply |
AC 220V±10%, 50Hz |
| Working Temperature |
-10℃ ~ 50℃ |
| Relative Humidity |
≤85%, no condensation |
| Overall Dimensions |
320mm*260mm*120mm |
| Equipment Weight |
3.5kg |
Applications
- Factory Acceptance Testing (FAT) for new transformers
- Preventive Maintenance to detect winding degradation
- Commissioning of substation equipment (IEC/IEEE compliance)
- Troubleshooting faults like inter-turn shorts or core damage
Standards Compliance
Meets IEC 60076-1, IEEE C57.12.90, and ANSI C57.12.00
About Sansion Power Electric
Sansion Power Electric was established in 2005, with over 20 years of experience in R&D, manufacturing and marketing of power electrical testing products. Our products are widely used in power electric, railroad, energy conservation and environment protection, water conservancy, petrochemical industry, aerospace and other fields.
Our company includes R&D department, instruments manufacturing workshop, HV workshop, sample exhibition room, HV testing laboratory, quality control department, and employs more than 80 staff including 20 technical engineers. We have obtained the IS09001 quality system certification and all products strictly conform to international IEC and Chinese state standards.
Frequently Asked Questions
Q1: Is your company a sales company or a manufacturer?
Sansion Power Electric Co., Ltd. is an industrial and trade enterprise, with its own factory, self-produced and self-sold. We were founded in 2005 and have twenty years of production experience. Our company has reliable production lines, test rooms and R&D centers.
Q2: Whether the goods are in stock, whether they can be customized, and how long the delivery time is?
After the goods have been ordered, we can be made to order according to the special requirements of customers by using the latest technology. The delivery time is usually within 10 working days if there are no accidents.
Q3: Is the quality guaranteed?
In order to ensure quality, we use imported components in large quantities. After three times of quality inspection, the goods can be sent out, and the export is uniformly packed in non-fumigation wooden boxes.
Q4: What are the after-sales terms?
We offer free consulting service, one year warranty, and adopt various methods such as email communication, video calls, technology door-to-door, aiming to solve any after-sales problems in a timely manner.
Q5: What are the cooperative countries or regions?
Products have been successfully exported to the United States, French, Brazil, Australia, Spain, Portugal, Oman, Russia, the Netherlands, Indonesia, Bangladesh, Saudi Arabia, Chile, Colombia, Panama, Malaysia and other countries and regions.
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