- Energy Meter Field Calibrator
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Transformer Test Equipment
- Transformer Test Bench
- Turns Ratio Tester
- DC Resistance Tester
- Transformer Tan Delta Tester
- Sweep Frequency Response Analyzer
- Partial Discharge Tester
- CT PT Analyzer
- Transformer On-Load Tap-Changer Tester
- Short-Circuit Impedance And No-load Integrated Tester
- Winding Resistance And Turns Ratio Integrated Tester
- Transformer Capacitance And Inductance Tester
- Transformer Capacity And Characteristic Tester
- Lightning Arrester Tester
- Short-Circuit Impedance Tester
- Transformer Oil Test Equipment
- SF6 Gas Analyzer
- Secondary Injection Relay Test Set
- Resistance Tester
- Power Quality Analyzer
- HV Switch Tester
- High Voltage Test Equipment
- Cable Fault Locator
- Battery Tester
Products
Huazheng HZKF-2 Trace Moisture Analyzer Oil Water Content Tester
The trace moisture analyzer from our company meets the requirements of GB/T 7600, SH/T 0255, GB/T 6283, SH/T 0246, and other method standards. It employs the Karl Fischer (Coulomb) method to determine the trace moisture content in various types of liquids. This analyzer is characterized by its high measurement accuracy, fast speed, and stable, reliable data. It is widely used in industries such as petroleum, chemical, electric power, environmental protection, and medicine.
Huazheng HZ1200 Volumetric Karl Fischer Titration Apparatus
The HZ1200 Volumetric Karl Fischer Titrator (hereinafter referred to as the instrument) is a highly precise laboratory analyzer. It is mainly used for chemical analysis in colleges, scientific research institutes, the petrochemical industry, pharmaceuticals, drug testing, and metallurgy.
Huazheng HZ182N Transformer Oil Breakdown Voltage Tester
Transformer Oil BDV (Breakdown Voltage) Testers are widely used in high-voltage electrical equipment such as transformers, oil circuit breakers, oil-filled cables, power capacitors, and oil bushings. During operation, the performance of the oil will gradually deteriorate due to the effects of oxygen, high temperature, high humidity, sunlight, strong electric fields, and impurities, so that it cannot fully function as an insulator. To identify whether its performance has deteriorated, the quality of insulation oil is closely related to the breakdown voltage.
Huazheng HZC-4080 High-voltage Switch Characteristic Circuit Breaker Tester
The circuit breaker analyzer (also known as the circuit breaker characteristic tester, high-voltage switch comprehensive tester, etc.) is a specialized instrument for detecting the mechanical dynamic characteristics of high-voltage circuit breakers. It assesses the performance and condition of the circuit breaker by measuring various parameters during the opening and closing processes, such as time, speed, and travel distance.
Huazheng HZLY-50A Double Stage High Vacuum Transformer Oil Filter
The transformer oil filter is a mechanical device specifically designed for filtering and purifying transformer oil. Its core function is to remove solid impurities, water, and gases from the oil, thereby improving the oil's quality and enhancing the insulation strength of the transformer oil.
Huazheng OEM HZSF1467 SF6 Gas Leakage Detector Supplier
The instrument uses an infrared sensor at its core, combined with high-precision sampling ADC (Analog-to-Digital Converter) and a high-speed ARM CPU. This ensures that the sample data is more accurate and reliable. The instrument features a color LCD touchscreen display, with a user-friendly interface that is easy to operate.
Currently, some service providers are still using electrochemical sensors based on the principle of electrical conductivity for SF6 detection. However, these sensors cannot meet the requirements of the power industry for low-range SF6 testing, such as 0-50 PPM or 0-3000 PPM. In contrast, infrared SF6 sensors can be customized to cover these specific ranges.
Huazheng Manufacture HZSF-CZ SF6 Gas Vacuuming And Refilling Device
With the rapid development of the power industry and increasing investment in power industry infrastructure and equipment, the use of SF6 electrical equipment continues to grow. Consequently, the requirements for the installation, commissioning, overhaul, and maintenance of SF6 electrical equipment are becoming increasingly stringent. Relevant departments have set higher quality and time standards for vacuuming and refilling gas during the construction and maintenance of SF6 electrical equipment, especially for Gas Insulated Switchgear (GIS).
Over the years, our company has continuously accumulated experience in testing, calibration, and professional technology for SF6 gas electrical equipment. To meet the evolving needs of this industry, we have developed the SF6 Gas Vacuum and Refill Device. This device not only meets the technical specifications of advanced foreign equipment but also satisfies the pricing requirements of domestic users. It is based on an analysis of the latest and most advanced foreign maintenance technologies.
Huazheng Manufacture HZ1491 SF6 Gas Density Relay Calibrator
The SF6 gas density relay calibrator is an important component used to monitor changes in SF6 gas density within the SF6 switch body during operation. Due to the infrequent action of the SF6 gas density relay calibrator in field operations, it often becomes inflexible and exhibits poor contact after a period of time. Additionally, the temperature compensation performance of the density relay may deteriorate. Sudden changes in ambient temperature can frequently lead to the misoperation of the SF6 density relay calibrator. Therefore, the DL/T596-1996 Preventive Test Code for Power Equipment stipulates that each user of SF6 switches must regularly calibrate the SF6 gas density relay calibrator.
The SF6 density relay calibrator is developed in accordance with the DL/T259-2012: Calibration Specification for SF6 Density Relay Calibrator, issued by the National Energy Administration.
Huazheng Manufacture HZSF-702 High Precision Portable Dew Point Tester
SF6 gas is widely used as an insulating and arc-quenching medium in high-voltage electrical equipment, such as circuit breakers and gas-insulated switchgear (GIS). The SF6 Dew Point Tester is essential for monitoring the moisture content in these systems, ensuring their safe and reliable operation. Additionally, the tester is used in laboratories and research institutions to analyze the quality of SF6 gas and develop new applications.
In summary, the SF6 Dew Point Tester is a vital tool for ensuring the quality and safety of SF6 gas in various applications. Its accurate measurement, wide range, fast testing, and portability make it indispensable in the power industry and other fields where SF6 gas is used.
Huazheng Manufacture HZSF-15-50 SF6 Gas Recovery Device
This SF6 gas recovery device features an oil compressor imported from Italy. The compressor is specifically designed for SF6 gas recovery, with a displacement capacity of 6.5 m³/h and a maximum output pressure of 4.5 MPa (though the device pressure is controlled at 3.8 MPa). As a high-pressure compressor, it offers low power consumption, which significantly reduces the volume and weight of the SF6 recovery device.
Huazheng Manufacture HZ1434 Portable SF6 Gas Purity Analyzer
The HZ1434 SF6 Gas Purity Analyzer is the latest intelligent measuring instrument developed by our company. This product features a color highlight LCD touch screen as the human-machine interface. The full Chinese interface is user-friendly and convenient for operation, with all types of data displayed in real time. The high-precision, fast-response touch screen serves as the human-machine input, allowing users to switch freely between various functions.
The instrument is equipped with a built-in, high-capacity rechargeable lithium battery pack, providing an ultra-long standby time. It also features a standard USB interface, through which historical data can be exported to a USB flash drive.
Utilizing the most advanced micro thermal conductivity sensor with temperature compensation, the HZ1434 offers users a simple on-site detection method for SF6 purity. It is primarily designed to measure the purity (percentage content) of SF6 gas in bottled SF6 gas, SF6 switches, and other related equipment. Additionally, it can be used in applications involving multiple background gases (with special requirements).
Huazheng Electric Manufacturer HZKC-500 Vacuum Pump Set
The HZKC-50 series equipment is used to evacuate the gas from the transformer, so that the iron core, coil, and insulating materials inside the transformer are completely exposed to a high-vacuum environment. In this high-vacuum environment, the moisture absorbed by the iron core, coil, and insulating materials evaporates into the air and is then discharged by the vacuum pump. This process achieves the function of drying the transformer.
Huazheng Manufacture HZBS-X3 Closed Cup Flash Point Tester
The flash point is the lowest temperature at which a liquid can form an ignitable mixture in air near its surface. The lower the flash point, the easier it is to ignite the material. Nowadays, the flash point is used to determine whether non-volatile or flammable substances contain highly volatile or flammable components. It has become one of the most important parameters for the transportation, storage, and safety management of petroleum products.
The Automatic Closed Cup Flash Point Tester is designed and manufactured in accordance with the National Standards of the People’s Republic of China (GB/T 261-2008, GB/T 21615-2008), European standards, and ASTM D93. It is an advanced analytical instrument primarily used to determine the closed flash point of petroleum products.
Huazheng HZTTR80A Transformer Turns Ratio Tester With Excitation Current
The HZTTR80A Transformer Ratio Test Device is a fully automatic tester that integrates multiple testing functions, including turn ratio, voltage ratio, vector relationship, winding connection, polarity, tap position, and excitation current. This lightweight and portable instrument, along with its accessories, is housed in a multi-functional engineering plastic case. The case is resistant to cold, heat, moisture, water, and shock, making it ideal for field tests. The device is suitable for testing both single-phase and three-phase transformers, with or without taps. The instrument can be controlled via a dedicated app downloaded on an Android phone or tablet, allowing users to store and upload test data for easy review.
Huazheng HZ-3310D Three-Channel DC Resistance Tester with Magnetic Assistance
Testing the DC resistance of a transformer is a mandatory procedure during the ex-factory inspection of semi-finished and final products, as well as during installation, acceptance testing, and preventive maintenance conducted by the electric power department. This test effectively identifies manufacturing defects such as improper material selection for transformer coils, poor welding, loose connections, missing strands, and broken wires, as well as potential issues that may arise after operation.
To meet the demand for rapid measurement of transformer DC resistance, our company has developed a new generation of DC resistance testers based on our technological expertise. This instrument incorporates advanced power technology and is characterized by its compact size, lightweight design, and high output current. The device is controlled by a microcontroller, which enables automatic self-inspection, data processing, and display functions. It also features automatic discharge and audible alarm indications. The tester offers high accuracy, ease of operation, and the ability to quickly measure transformer DC resistance.