High-Sensitivity Accurate Real-Time Transformer Capacitance & Tan Delta Tester - Multi-Functional Comprehensive Precise-Detection Non-Destructive

• Customization: Available
• After-sales Service: Provided
• Warranty: One-Year
• Model NO.: NRJS600
• Accuracy Grade: 1
• Load Way: Electronic Load
• Display: Digital
• Control: Computer Control
• Accuracy: Cx:±(Reading×1%+1PF) Tgδ:±(Reading×1%+0.00040)
• Anti-Interference Index: Frequency Conversion Anti-Interference,The Above a
• Internal Voltage: 3PF~60000PF/10kv 60PF~1μF/0.5kv
• External Voltage: 3PF~1.2μF/10kv,60PF~30μF/0.5kv
• Resolution: up to 0.001PF, 4 Significant Digits
• Tgδ Range: Unlimited, Resolution of 0.001%, Automatic Identif
• Types of Samples: Capacitance, Inductance and Resistance
• Test Current Range: 10μa~5A
• Maximum Output Current: 200mA
• Lifting and Pressing voltage Method: Continuous and Smooth Adjustment
• Transport Package: Wooden Box with Foam Inside
• Specification: standard
• Trademark: Refine On
• Origin: China
• HS Code: 9030899090
• Production Capacity: 100 Set Per Week
• Package Size: 60.00cm * 50.00cm * 40.00cm
• Package Gross Weight: 35.000kg

Product Description

Product Description

NRJS600  Transformer Capacitance &Tan Delta Tester

Main features of capacitance and dielectric loss measurement

1.Frequency conversion anti-interference

Using frequency conversion anti-interference technology, it can still measure accurately under 200% interference, and the test data is stable, suitable for on-site anti-interference dielectric loss test.

2.High-precision measurement

Using techniques such as frequency floating, digital waveform analysis and bridge self-calibration, combined with high-precision three-terminal standard capacitors, high-precision dielectric loss measurement is achieved, and the accuracy and stability of the positive/reverse wiring measurement are consistent..

The input resistance of all ranges of the instrument is lower than 2Ω, which eliminates the influence of the additional capacitance of the test line.

It can be connected to the oil cup for precision insulation oil dielectric loss test, and it can be connected to the solid material measuring electrode for precision insulation material dielectric loss test.

3 Good compatibility

Automatically identify 50Hz/60Hz system power supply, support generator power supply, even if the frequency fluctuates greatly, it can be measured normally.

Built-in series and parallel dielectric loss measurement models, which can be fully compatible with the calibration table and dielectric loss standard device, which is convenient for instrument verification.

4 Multi-level safety protection to ensure personal and equipment safety

High-voltage protection: short-circuit, breakdown or high-voltage current fluctuations of the test product can cut off the output at a high speed in a short-circuit mode.

Low voltage protection: wrong connection of 380V, power supply fluctuation or sudden power failure, start protection, will not cause over voltage.

 Grounding protection: When the instrument's poor grounding causes the enclosure to carry dangerous voltage, the grounding protection is activated.

 

Technical Parameters

1.1 Main technical indicators

1.1.1Dielectric loss and capacitance measurement

Accuracy:  Cx:  ±(reading×1%+1pF)

tgδ: ±(reading×1%+0.00040)

Anti-interference index: Frequency conversion anti-interference,The above accuracy can still be achieved under 200% interference

Capacity range: Internal voltage: 3pF~60000pF/10kV  60pF~1μF/0.5kV

External voltage: 3pF~1.2μF/10kV 60pF~30μF/0.5kV

Resolution:  Up to 0.001pF, 4 significant digits

Tgδ range: Unlimited, resolution of 0.001%, automatic identification of three types of samples: capacitance, inductance and resistance.

Test current range:10μA~5A

Internal voltage: Set voltage range: 0.5~10kV

Maximum output current: 200mA

Lifting and pressing votlage method: continuous and smooth adjustment

Voltage accuracy:  ±(1.5%×reading+10V)

Voltage resolution:  1V

Test frequency: 45~65Hz Integer frequency

49/51Hz,45/55Hz Automatic double frequency conversion

Frequency accuracy:±0.01Hz

External voltage: Maximum test current during positive connection1A / 40~70Hz

Maximum test current when reverse wiring10kV / 1A / 40~70Hz

CVT Self-excited low voltage output: output voltage 3~50V, output current3~30A

Measuring time: about 30s,Related to measurement method

1.1.2 Other indicators

Input power: 180V~270VAC,50Hz/60Hz±1%,Mains or generator power supply

Computer interface: Standard RS232 interface (optional)

Printer: Comes with mini thermal printer

Ambient temperature: -10℃~50℃

Relative humidity: <90%, no condensation

PRODUCT APPLICATION

Company Profile

ABOUT US

Refine On (Hebei) Electric Power Technology Co., Ltd. is located in the Mancheng High-tech Development Zone, Baoding. It is fully committed to the high-tech field of power system automation, specializing in the research and development of a series of products such as power system marketing measurement, operation and maintenance high-voltage testing, distribution network testing, power consumption inspection, and tools and meters. It is a technology-oriented enterprise integrating R&D, production, sales and service. The company provides instruments, meters and testing equipment related to power generation, transmission, transformation, distribution and sales. Provide sales of complete sets of instruments and equipment required for installation (repair, testing) of Grade one, Grade Two, Grade Three and Grade Four.

The company is equipped with various production, testing and inspection facilities, has a sound management system, and strictly adheres to the GB/T19001-2016 quality management system standard for production and operation. A number of high-tech instruments and equipment that meet the on-site requirements have been developed. At present, the products have been widely applied in multiple fields such as power, railway, mining, petroleum and chemical engineering.

The company has obtained the Quality management System certification certificate, 2 invention patents, 10 utility model patents and 20 software Copyrights. And it has established long-term and close cooperative relations with units such as Beijing Institute of Metrology, Beijing Electric Power Research Institute, and Hebei Institute of Metrology.

Refine On (Hebei) is committed to providing high-quality products and technical services to users and partners in the power system with its exquisite technology, excellent quality and perfect service.

Our main products include insulating oil tester series, insulating resistance tester, power quality analyzer, circuit breaker, relay protection tester, high-voltage generator, high-voltage capacitor, test transformer, transformer test series, etc.

Certifications

Packaging & Shipping

FAQ

FAQ

1. Insulating Oil Tester Series
1.1 What is the main function of the Insulating Oil Dielectric Strength Tester (80kv/100kv)?
Tests insulating oil's dielectric strength to detect impurities, moisture, or aging, ensuring safe operation of transformers and circuit breakers.

1.2 How often should the Insulating Oil Dielectric Strength Tester be calibrated?
At least once a year; shorten intervals for frequent use, harsh environments, or post-maintenance.

1.3 What is the difference between the Closed Cup Flash Point Automatic Tester and the Open Cup Flash Point Automatic Tester?
• Closed Cup: Tests in sealed containers; for low-flash oils (e.g., diesel) and sealed power equipment.

• Open Cup: Tests in open containers; for high-flash oils (e.g., insulating oil) and air-exposed scenarios.

2. Transformer Test Series
2.1 What can the Transformer Capacity Tester detect?
Detects transformer's actual capacity, no-load/load loss, no-load current, and impedance voltage; judges compliance and faults.

2.2 How to use the Transformer Tap Changer Tester?
1. Connect test lines to tap changer terminals per manual.

2. Power on, select test mode (e.g., resistance test).

3. View results; disconnect and power off after. (Note: De-energize and ground transformer first.)

2.3 What is the purpose of the Transformer Winding Deformation Tester?
Detects winding deformation (axial displacement, short circuits) from short-circuits or vibration; enables early maintenance to avoid accidents.

FAQ

3. Circuit Breaker Test Instruments
3.1 What are the differences between the Single-Chip Microcomputer and Industrial Computer Circuit Breaker Characteristic Testers?
• Industrial Computer: Stronger data processing, more tests (e.g., dynamic resistance), touch interface, and computer data communication.
• Single-Chip: Simple structure, low cost; for basic characteristic tests.
3.2 How to judge whether the Circuit Breaker Characteristic Tester is working normally?
1. Check power and indicator lights.
2. Run self-test; test a standard circuit breaker.
3. Confirm results are within allowable error. Stop use if self-test fails or errors are large.
4. Cable Fault Test Instruments
4.1 What types of cable faults can the Multiple Pulse Cable Fault Tester detect?
Detects low-resistance (short circuits), high-resistance (leakage), and open-circuit faults; locates faults via pulse reflection.
4.2 How to improve the accuracy of the Cable Fault Location Tester?
• Ensure correct, firm test line connections.
• Select proper test mode/parameters for fault type.
• Eliminate environmental interference; keep site clean/dry.
• Calibrate regularly.
• Test multiple times for complex faults; analyze results comprehensively.
5. Insulation Resistance Tester
5.1 What is the application scope of the High-Voltage Insulation Resistance Tester?
Tests insulation of high-voltage equipment (transformers, generators, cables, etc.); checks for moisture, dirt, or aging to support commissioning and maintenance.
5.2 How to (complete based on full content; core steps?

Store in dry environment, avoid impact; clean terminals before use; calibrate regularly to maintain accuracy.)