Digital Transformer Loss and Capacity Calculation Instrument Provide Other Electrical Tester

Product Description

Product Description

PRODUCT FUNCTION

NRB506A Transformer Capacity & Loss Tester

Function

We can measure a variety of distribution transformer, power transformer capacity instead of the additional extra power. It is more convenient and efficient.
Combined with the external power source, voltage, current regulator equipment etc, it can measures various transformer parameter such as no-load current, no-load loss, impedance voltage, load loss and so on.
Characteristic test of transformer, test range is wide,flexible configured.only through the simple connection to current transformer and voltage transformer, test scope can be enlarged to high-grade power transformer.
Short-circuit the terminals of cable,humanization design,with lock,easy connected to fasten units of transformation.
All results are automatically carried out relevant correction. You only need to input the related parameters (such as temperature, load adjustment coefficients etc), then the instrument can automatically calibrate such as waveform deformity correction, temperature correction, correction of non rated voltage, rated current correction,so that the accurate is much higher
The maximum voltage is up to 750V and the maximum current is up to 100A range with protection circuit in it,when you make the characteristic test of transformer.don't worry the precision and damage of the instrument due to in-proper shift. 
The voltage and current range can be very flexible and easy to expand by connecting the external CT or VT
It has large screen, high brightness LCD display, English menu and operation tips, friendly man-machine interface and wide temperature tolerance, brightness adjustable type LCD screen, which can adapt to the different temperature.
Thermal sensitive printer is set inside the instrument,it can easily print on site.

Technical Parameters

1. Output Range of Built-in Battery	Voltage: 0-10V Current: 0-10A
2. Input Range of Characteristic Test Power Source	Voltage: 0-750V Current: 0-100A
3. Test Accuracy	Voltage, Current: ±0.2% Power: ±0.5% (CosΦ>0.1), ±1.0% (0.02<CosΦ<0.1) No-Load Loss: ±2% (0.1≤CosΦ≤1) Load Loss: ±2% (0.1≤CosΦ≤1)
4. Working Temperature	-20℃-+60℃
5. Charger Requirement	Adapter Output: 12.6V 1000mA Power Supply: AC 160V-265V
6. Insulation	a. Insulation Resistance (Capacity, Voltage, Current to Enclosure): ≥100MΩ b. Withstand Voltage: 2kV Power Frequency (Effective Value) between Input Power and Machine Enclosure, Test Duration: 1 Minute
7. Volume	32cm×25cm×12cm
8. Weight	2.5KGS

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.

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.)