Product Introduction
The TAG-8700 Wireless High Voltage Phase Sequence Meter is a professional electrical testing instrument designed for three-phase sequence detection, high voltage phase checking, and circuit synchronization verification.
The instrument is suitable for 5V to 220kV AC transmission lines and can be used for phase checking of high-voltage power lines, switchgear live display devices, and power system commissioning applications.
Using advanced digital wireless transmission technology, the transmitter collects phase and frequency signals from tested lines and sends the data wirelessly to the receiving host. The system automatically calculates phase differences and provides accurate judgment results.
With safe wireless operation, color display, vector diagram analysis, and voice prompts, the TAG-8700 improves testing efficiency and safety during field operations.
Applications
- High voltage transmission line phase sequence testing
- Substation commissioning and maintenance
- Power grid expansion and installation projects
- Transformer and switchgear phase verification
- Ring network cabinet phase checking
- Generator grid connection preparation
- Electrical engineering inspection
Key Features
- Wireless digital transmission technology for safer operation
- Supports wide voltage range from 5V to 220kV AC
- Phase difference measurement accuracy ≤5°
- Frequency measurement accuracy ±0.1Hz
- Wireless transmission distance up to 100m
- 3.2-inch color LCD display with vector diagram
- Real voice prompt for measurement results and operation guidance
- Displays phase, frequency, transmitter battery status and test information
- Supports same-phase and different-phase judgment
- Built-in rechargeable lithium battery system
- Automatic shutdown after 1 hour without operation
- Low leakage current design for high voltage measurement safety
Measurement Performance
| Item |
Specification |
| Voltage Measurement Range |
5V – 220kV AC |
| Phase Difference Accuracy |
≤5° |
| Frequency Accuracy |
±0.1Hz |
| Wireless Transmission Distance |
Approx. 100m |
| High Voltage Measurement Leakage Current |
<10μA |
Display & Function
| Item |
Specification |
| Display Screen |
3.2-inch Color LCD |
| Display Content |
Phase difference, vector diagram, phase result, frequency |
| Voice Function |
Real voice prompt |
| Measurement Function |
Phase sequence detection and phase checking |
| Automatic Shutdown |
1 hour without operation |
Power Supply
| Item |
Specification |
| Receiving Host Battery |
18650 Rechargeable Lithium Battery |
| Receiving Host Battery Capacity |
2600mAh |
| Transmitter Battery |
10440 Rechargeable Lithium Battery |
| Transmitter Battery Capacity |
340mAh |
| Charger |
DC 5V / 1A |
| Transmitter Power Consumption |
<0.1W |
| Receiving Host Power Consumption |
<0.3W |
FAQ
1. What is TAG-8700 used for?
TAG-8700 is used for high voltage phase sequence detection and phase checking in power systems.
2. What voltage range can it test?
It supports AC voltage testing from 5V to 220kV.
3. How does the wireless function work?
The transmitter collects phase and frequency signals from the tested line and sends data wirelessly to the receiving host for analysis.
4. Can it test switchgear live display devices?
Yes. The instrument supports phase checking through secondary live display devices.
5. Is it suitable for outdoor operation?
Yes. It is designed for field testing with rechargeable batteries and wide operating temperature range.
Warranty
The TAG-8700 Wireless High Voltage Phase Sequence Meter comes with a 2-year warranty, including technical support, repair service, and spare parts supply.
