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HF-PQ-T201 Three Phase Current Unbalance Analyzer
This three-phase current unbalance analyzer measures three-phase currents, calculates unbalance degree and stores test data. It is widely used for load inspection, fault troubleshooting and power quality analysis in distribution systems.
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Energy conservation and consumption reduction are key development directions for power systems. During the operation of distribution transformers, three-phase current unbalance commonly occurs. It will increase losses of lines and transformers, and even endanger safe transformer operation. Three-phase current unbalance may also lead to three-phase voltage unbalance, degrade power quality, and affect energy meter accuracy, resulting in metering losses.
The three-phase current unbalance recorder records and analyzes three-phase currents and unbalance degree. Compact and user-friendly, it provides an effective tool for users to reasonably distribute loads.
Product Features
- Supports 24/7 continuous tracking monitoring and recording of three-phase currents.
- Monitors and records neutral zero-sequence current.
- Measures and records three-phase current unbalance degree.
- Built-in real-time clock; data will not be lost after power failure.
- Data can be saved directly to USB flash drive; historical data can be stored continuously for up to 3 years.
- Equipped with background management software, compatible with Win9x/2000/XP/NT systems. It supports analysis and report printing of three-phase current, zero-sequence current and unbalance degree for convenient data management.
Technical Parameters
| Parameter | Specification |
|---|---|
| Current Input | Clamp sensor 0~200A (standard); 500A / 1000A optional upon request |
| Recording Interval | 1~99 minutes |
| Operating Voltage | 85~265V (custom special voltage available) |
| Operating Frequency | 45~60Hz |
| Overall Accuracy | Class 1.0 |
| Weight | 2kg |
Packing List
| Item No. | Description | Qty | Unit | Remarks |
|---|---|---|---|---|
| 1 | Analyzer Main Unit | 1 | Set | Handheld recording host |
| 2 | 0~200A Clamp Current Sensor | 3 | Pcs | Standard configuration |
| 3 | USB Data Cable | 1 | Pcs | For data export |
| 4 | Power Supply Adapter | 1 | Pcs | AC85~265V |
| 5 | Operation Manual | 1 | Copy | Chinese & English version |
| 6 | Calibration Certificate | 1 | Copy |
FAQ for Three Phase Current Unbalance Analyzer
Q1: What main functions can this instrument realize?
A1: It supports 24-hour continuous monitoring of three-phase current, zero-sequence current and three-phase current unbalance degree, and automatically records all test data.
Q2: What is the standard measuring range of the clamp sensor?
A2: Standard clamp sensor: 0~200A. 500A and 1000A sensors are optional according to customer requirements.
Q3: Can the recorded data be saved for a long time?
A3: Yes. Data can be stored on USB flash drive, and historical data can be continuously recorded for up to 3 years. Built-in clock prevents data loss after power failure.
Q4: How to export and analyze the test data?
A4: Export data via USB flash drive. Matching background software supports data analysis, viewing and report printing on Windows systems.
Q5: What is the operating voltage range of the analyzer?
A5: Working voltage: 85~265V. Special voltage specifications can be customized.
Q6: What is the recording interval adjustment range?
A6: The recording interval can be set freely from 1 minute to 99 minutes.
Q7: What is the accuracy grade of the whole device?
A7: The overall measurement accuracy is Class 1.0.
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