Transformer Ratio Group Tester HZZB-202 Ratio Group Tester

Transformer Ratio Group Tester HZZB-202 Transformer Ratio Group Tester, used for transformer ratio group testing, has Z-type transformer, rectifier transformer, grounding transformer, electric furnace transformer, phase-shifting transformer, balance transformer, Scott transformer, and inverse Scott transformer measurement functions. By using a three-phase precision inverter power supply, the harmonic effects of the mains voltage during measurement are eliminated, resulting in more accurate measurements. Execution standard: DL/T 963-2005. 1、 Complete the three-phase transformation ratio test in one go, with fast testing speed and high accuracy; 2、 Can test special transformers such as Z-type transformer, rectifier transformer, grounding transformer, electric furnace transformer, phase-shifting transformer, balancing transformer, Scott transformer, inverse Scott transformer, etc; 3、 The instrument can be controlled through dedicated software using an Android phone or tablet, and the test data can be stored and uploaded for easy reference.

1、 Product Overview:

According to IEC and relevant national standards, transformer ratio testing is a necessary item in the production, user handover, and maintenance testing of power transformers. This can effectively supervise the quality of transformer products during factory delivery and use, prevent inter turn short circuit, open circuit connection errors, and internal faults or contact faults of voltage regulating switches. For this purpose, our company has developed and produced a fully automatic variable ratio tester that, based on the original requirements of users' on-site use, makes operation more convenient, has complete functions, stable and reliable data, and greatly improves testing speed. Adapt to the needs of ratio testing for various large, medium, and small transformers.

Product nickname: Special Transformer Ratio Tester, Ratio Group Tester, Special Transformer Ratio Tester, Transformer Ratio Fully Automatic Tester, Fully Automatic Transformer Ratio Tester, Transformer Ratio Group Measuring Instrument, Special Transformer Ratio Measuring Instrument, Transformer Ratio Fully Automatic Measuring Instrument

2、 Product features:

1. The instrument uses a three-phase precision inverter power supply instead of a single-phase mains power supply as the measurement voltage, which eliminates the harmonic influence of mains voltage during measurement and makes the measurement more accurate. There is no impact when the working power source is a generator.

2. By using three-phase output voltage to improve testing speed, the phase to phase angle can be measured and the transformer wiring group 0-11 can be automatically identified.

3. Suitable for a wide range of transformer types, including Z-type transformers, rectifier transformers, grounding transformers, electric furnace transformers, phase-shifting transformers, balancing transformers, Scott transformers, and inverse Scott transformers, with measurement functions.

4. Adopting a self-made precision three-phase inverter power supply with high and low voltage reverse connection protection, transformer turn to turn short circuit protection, tap changer failure protection, output full short circuit protection to increase instrument stability.

5. After inputting the rated parameters, the transformer transformation ratio, error value, and tap position of the tap changer can be automatically measured. Especially for tap changers with asymmetric tap changers, the accurate position of the transformer tap changer can be accurately measured. Up to 99 tap changer positions can be measured.

6. Adopting high-definition color LCD modular LCD display, each operation step has Chinese prompts. No manual is required, just read the LCD prompts to complete the instrument operation.

7. The instrument has both a print output USB interface and an RS232 interface for paperless office.

8. Adopting a multi-functional engineering plastic box that is cold resistant, temperature resistant, sealed, waterproof, anti drop, and shockproof for easy field testing.

9. The instrument can use an Android phone or tablet to follow the WeChat official account to download a special APP and use a special software to control the storage and upload of the instrument's test data throughout the process for easy reference.

1. Test range: 0.9 to 10000

2. Measurement accuracy: ± 0.1%+2 words (0.9-500)

± 0.2%+2 characters (501-2000)

± 0.5%+2 characters (2001-10000)

3. Resolution: Minimum 0.0001

4. Output voltage: automatically adjusted according to the load

5. Working power supply: AC220V ± 10% 50 ± 1Hz

6. Environmental temperature: -10 ℃ to 40 ℃

7. Relative humidity: ≤ 85% without condensation

8. External dimensions; Host: 360 * 290 * 170 (mm) Wiring box: 360 * 290 * 170 (mm)

9. Weight: Main unit 5.9KG Wire box: 5.65KG

The enterprise's products are strictly produced in accordance with international and national standards and industry regulations, and have passed the testing of national, provincial, and municipal power research institutes, measurement centers, and authoritative power departments. They have fully passed the ISO9001 international quality management system certification, the People's Republic of China Manufacturing Measuring Instrument License, GB/T19001-2008 quality management system requirements.

We will strictly follow the "Quality and After sales Service Commitment Letter" to provide relevant product services. We firmly believe that high-quality, systematic, comprehensive, and fast services are the foundation of enterprise development. After years of continuous exploration and progress, we have formed the service philosophy of 'customer centricity, quality as the first life of the enterprise'. And with the goal of creating a first-class service enterprise in China through strict quality management and advanced technology, we have formulated a quality policy of 'standardized management system, strict process control to ensure product quality and customer satisfaction'. For many years, we have adhered to the principle of 'customer first' and built a good sales and after-sales service system to provide customers with better pre-sales, in sales, and after-sales services!

Our after-sales service commitment is: 'Refund within 3 months, replacement within 1 year, free repair for 3 years, and lifelong maintenance'. In the days to come, we will continue to adhere to the three-star service as always!

Note: The detailed product information is subject to the actual product. Please confirm the specific model parameters with the sales personnel before purchasing. Please refer to the instruction manual.

The final interpretation of this service commitment belongs to Wuhan Hezhong Electrical Equipment Manufacturing Co., Ltd.

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