MY6810B Three‑Phase Transformer TTR Turns Ratio Tester Portable Automatic Transformer Ratio Vector Group Analyzer

The MY6810B Transformer Turns Ratio Tester is a precision instrument designed for comprehensive transformer testing with a 2-year warranty. This advanced digital ratio group meter overcomes traditional transformer ratio bridge limitations with intuitive operation and rapid, accurate testing capabilities.

Product Alias

Transformer Turns Ratio Meter(TTR Meter) / Transformer Turn Ratio Analyzer / Transformer Ratio Test Set / Three‑Phase Transformer TTR Tester / Transformer Voltage Ratio Tester / Automatic Transformer Vector Group Tester / Portable Transformer Turns Ratio Test Instrument

Features

1. Three-phase precision inverter power supply for fast, accurate testing
2. Simultaneous single-phase and three-phase testing capability
3. Automatic calculation of transformation ratio values, error percentages, and tap positions
4. Three-phase group testing with automatic group number determination
5. Phase angle measurement between phases
6. 7-inch high-definition color touch screen LCD with modular display
7. Comprehensive English operation prompts for intuitive use

Product Parameters

Application Scenarios

FAQ

Question 1: Cannot start full‑parameter transformer ratio test, partial test items fail to execute
Customer: We use this portable transformer turns ratio tester for on‑site substation and factory testing. Some test items cannot be started, and the full parameter test cannot be completed. What causes this issue?
Manufacturer: This problem commonly occurs during on‑site transformer testing. Please troubleshoot step by step. First, check all test wiring between the tester and the transformer, ensure all clamp terminals are tightly connected without looseness, oxidation or poor contact. Second, confirm the transformer tap position and vector group settings match the system parameters. Third, verify the correct test items are selected in the touch‑screen software menu. If the problem remains unsolved, please contact our technical team in time and do not disassemble the device privately.
Question 2: Test data has large deviation compared with factory standard values
Customer: The TTR tester runs normally without alarm prompts, but the tested turns ratio, polarity and vector group data show obvious deviation from the transformer factory standard values. How to fix it?
Manufacturer: Large data deviation is mainly caused by poor contact of test clamps, incorrect parameter input or on‑site electromagnetic interference. Please follow these solutions. First, clean oxide and dirt on transformer terminals and re‑firm all test clamp connections. Second, recheck and correctly input the transformer rated parameters, tap position and vector group. Third, keep test cables away from high‑current power lines and strong interference equipment to reduce electromagnetic influence. If deviation still exists, recheck the actual operating status of the tested transformer and perform retesting.
Question 3: Device overheating protection alarm appears after long‑time continuous testing
Customer: After long‑hour continuous transformer ratio testing, the device triggers overheating protection alarm. The alarm still exists after power restart. Is the internal hardware damaged?
Manufacturer: This is normally a protection lock trigger instead of permanent component damage. Long‑time high‑load continuous operation will cause internal temperature rise and activate thermal protection. Once locked, the system cannot recover automatically. Please cut off the main power and keep the device powered off for about 30 minutes for full heat dissipation. After cooling down, re‑power on the tester and press the reset button to release the protection lock. If the alarm recurs, please contact our technical support and do not disassemble the equipment.
Question 4: Frequent automatic reset and tripping during batch testing
Customer: When performing batch transformer ratio tests in the workshop, the tester automatically resets occasionally and suffers power tripping, interrupting the test process. How to avoid this problem?
Manufacturer: Frequent resetting is mainly caused by unstable power supply, strong electromagnetic interference or unreliable grounding. It is recommended to use an independent and stable power supply, do not share the power loop with other high‑power equipment. Ensure the tester is fully and reliably grounded according to standard requirements. Place the device far away from high‑power interference equipment. If tripping and resetting persist, check the on‑site power capacity and internal device status, and contact us for remote technical support.
Question 5: Transportation, handling and wiring precautions
Customer: What key precautions should be followed for the transportation, handling, wiring and field operation of the portable transformer turns ratio tester?
Manufacturer: Please comply with the following specifications. First, professional electricians are required for all testing operations, strictly follow high‑voltage safety standards. Second, complete all wiring strictly according to the user manual, double‑check connection sequence to avoid wrong wiring which may damage the device or affect test results. Third, avoid severe impact, violent vibration and falling during transportation to protect internal precision components. Fourth, keep transformer terminals clean and dry before testing to prevent surface leakage interference. Fifth, store the device in dry and ventilated environments, avoid rain, moisture and corrosive environments. Read the full manual before formal operation.
Question 6: Shipping Method
Customer: If we place an order, how do you typically ship the goods? Will there be any issues with transporting bulky items such as reactors?
Manufacturer: We default to using dedicated logistics lines or brand-specific express shipping services; small-sized main units and accessories may also be shipped via standard courier services. Large items, such as reactors and excitation transformers, are packed using wooden crates or wooden frames for reinforcement to prevent bumps and moisture exposure during transit; a packing list is included with each package to facilitate item-by-item counting for you. Logistics costs are typically determined by both parties in accordance with the contract terms; after shipment, we will send you both the tracking number and the carrier's contact phone number for easy tracking.If your project site is remote or if delivery to the site is required with a specified logistics company, please inform us in advance when placing your order; we can then coordinate and arrange accordingly.
Question 7: Delivery Lead Time
Customer: Our project is under tight deadlines; how long will it take for the order to be shipped after we place it? Can we request expedited shipping?
Manufacturer: Standard specifications – stock available; typically delivered upon receipt of the order. Orders can be shipped within [X] working days; for non-standard products requiring customized voltage levels, capacities, or reactor combination configurations, the production cycle typically ranges from [X] to [Y] days.The delivery time will be approximately 7-15 working days; the specific timeline shall be subject to the sales confirmation provided upon order placement. If your project has a tight schedule, please inform us of the latest expected delivery date before placing your order; we will first verify the production schedule and inventory status, and where possible, will coordinate expedited production and prioritize shipment. However, it is recommended to allocate sufficient transit time for logistics to avoid delaying on-site testing.
Question 8: After-sales Service and Warranty
Customer: What is the warranty period for this equipment? If any issues arise during on-site use, how will your after-sales service respond?
Manufacturer: We provide a two-year free warranty on the entire unit and lifelong technical support services. During the warranty period, if issues arise due to defects in the equipment itself, we will provide free repair or replacement of components; when problems occur on-site, we commit to responding within 24 hours; most wiring and parameter configuration issues can be resolved through remote guidance via video or telephone; for cases where an on-site visit is necessary, we will arrange for our technicians to arrive at the location to resolve the issue. After the warranty period expires, we still offer repair services, with spare parts supplied at cost price for the long term, and software updates provided free of charge for life. Upon delivery of the equipment, we also offer free operational training (video operation guides)to ensure that your testing personnel can operate the equipment independently and proficiently; should you have any further questions, please feel free to contact our dedicated after-sales hotline directly.
Question 9: Shipping methods for each region (Sea freight)
Customer: Our projects are distributed across several states, and our procurement volumes are substantial; are the shipping methods consistent across all states? How is the delivery time calculated?
Manufacturer: The specifications are identical; however, it should be specifically noted that this equipment set is large in size and heavy in weight—components such as the reactor and excitation transformer are all classified as heavy components. Therefore, regardless of which state or region the shipment is destined for, we will uniformly utilize sea freight transportation. The packaging employs export-grade wooden crates with reinforced structures, along with moisture-proof and rust-proof treatments; the design of these wooden crates is optimized for long-distance sea transport and multiple lifting and transshipment operations. Upon arrival at the destination, simply unpack the goods and conduct an inspection before putting them into use. Regarding delivery time, the sea freight transit period depends on the port of destination: near-sea routes are generally faster, whereas ocean routes may take longer; the exact number of days will be confirmed based on the shipping schedule specified in the bill of lading. We have a dedicated freight forwarding agency to handle booking of shipping space, customs declaration, insurance, and other related procedures; once the vessel departs, we will send you documents such as the bill of lading and the packing list, enabling you to arrange for the receipt of goods at the port of destination and their inland transshipment in advance

Shipping scenario

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Scene (Two)

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