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HF-IT-205 Wireless CT Ratio Tester
This wireless CT ratio tester supports online measurement of current, transformation ratio, phase and polarity of high & low voltage CTs. It features long-distance wireless transmission, large data storage and is widely used for substation field inspection and power auditing.
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The HF-IT-205 Wireless High & Low Voltage CT Ratio Tester consists of a dedicated high-voltage wireless detector, low-voltage current clamp, optional low-voltage flexible coil, main unit, high-voltage insulating stick and monitoring software.
It performs online measurement of current, transformation ratio, phase identification, polarity and leakage current of high and low voltage primary and secondary circuits. It is widely applied in substations, power plants, industrial and mining enterprises, inspection stations and electrical maintenance departments for current testing, power anti-theft inspection and field electrical work.
Product Features
The current clamp adopts special alloy, CT technology and magnetic shielding technology to guarantee high precision, high stability and high reliability for long-term continuous monitoring.
It supports large storage capacity and can save up to 3000 groups of test data.
The main unit is equipped with a large LCD screen and provides a user-friendly human-machine interface.
The monitoring software supports real-time online monitoring and historical data query.
The lightweight insulating stick features moisture resistance, high temperature resistance, impact resistance, bending resistance, high insulation and telescopic design.
It supports large storage capacity and can save up to 3000 groups of test data.
The main unit is equipped with a large LCD screen and provides a user-friendly human-machine interface.
The monitoring software supports real-time online monitoring and historical data query.
The lightweight insulating stick features moisture resistance, high temperature resistance, impact resistance, bending resistance, high insulation and telescopic design.
Main Technical Parameters
| Parameter | Specification |
|---|---|
| Wireless Transmission | Max. 100m straight-line distance in open unobstructed environment |
| High Voltage Detector Measuring Range | 0.1mA ~ 1000A |
| Low Voltage Current Clamp Measuring Range | 0.01mA ~ 10A |
| Low Voltage Flexible Coil Measuring Range | 0.1A ~ 2500A (Optional) |
| High Voltage Detector Resolution | 0.1mA |
| Low Voltage Current Clamp Resolution | 0.01mA |
| Power Supply & Battery Life | DC 6V alkaline dry batteries (4 × 1.5V AAA), approx. 30 hours continuous working |
Operating Procedures for Wireless CT Ratio Tester
- Install batteries into the main unit and high-voltage wireless detector, switch on all devices.
- Mount the high-voltage detector on the insulating stick and clamp it onto the primary high-voltage conductor.
- Attach the low-voltage current clamp to the secondary CT circuit.
- Establish wireless communication between the detector and the host.
- Set test parameters, start measurement to read ratio, phase and polarity data.
- Save test records. After testing, power off all equipment and remove clamps.
Packing List
| Item No. | Description | Qty | Unit | Remarks |
|---|---|---|---|---|
| 1 | Main Controller | 1 | Set | Handheld unit with LCD screen |
| 2 | High Voltage Wireless Detector | 1 | Pc | U-shaped current sensor |
| 3 | Low Voltage Current Clamp | 1 | Pc | For CT secondary circuit |
| 4 | Telescopic High Voltage Insulating Stick | 1 | Set | |
| 5 | Low Voltage Flexible Coil | 1 | Pc | Optional accessory |
| 6 | Operation Manual | 1 | Copy | Chinese & English version |
| 7 | Inspection Certificate | 1 | Copy | |
| 8 | AAA Alkaline Batteries | 1 Set | Set | Spare batteries included |
FAQ for HF-IT-205 Wireless CT Ratio Tester
Q1: What data can this tester measure?
A1: It can test primary & secondary current, CT transformation ratio, phase sequence, polarity and leakage current of high and low voltage circuits.
Q2: What is the maximum wireless transmission distance?
A2: Up to 100 meters straight distance under open and unobstructed conditions. Barriers will shorten the communication range.
Q3: What are the measuring ranges of the sensors?
A3: High voltage detector: 0.1mA~1000A; low voltage clamp: 0.01mA~10A; flexible coil (optional): 0.1A~2500A.
Q4: How long can the equipment work continuously?
A4: Powered by 4×AAA alkaline batteries, the continuous working time is about 30 hours.
Q5: Is the flexible coil supplied as standard?
A5: The low voltage flexible coil is an optional accessory and not included in the standard package.
Q6: Can I view historical test data?
A6: Yes. The main unit can store up to 3000 groups of data, and historical records can also be checked via supporting monitoring software.
Q7: Does it come with the insulating stick?
A7: Yes. A lightweight telescopic high voltage insulating stick is provided in standard configuration.
Q8: What scenarios is this instrument suitable for?
A8: Widely used in substations, power plants and power inspection departments for on-site CT testing and power anti-theft inspection.
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