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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.

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.

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.

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.

The battery charger is primarily designed for charging batteries and for the initial charging of batteries that have been stored for more than three months before installation. It can also serve as a mobile, standby DC power supply for vehicles. The instrument offers several advantages, including high power, compact size, lightweight design, simple operation, and a user-friendly interface. It is the ideal tool for battery maintenance.

Battery Load Bank is a special instrument for the test of NiCD and Lead-acid storage battery string of the whole string voltage of 24V, 48V, 110V, 220V, and it adopts current advanced testing technology theory, and has obtained a series of breakthrough in research and application of new technology, new parts, new material and new techniques, which is designed in accordance with the requests of national related testing and maintenance regulations and it is a special detection instrument for the performance detection of stationary battery. Its big discharge power, small volume, light weight, complete function of data management software of upper computer could greatly reduce the work load of daily testing and maintenance of stationary battery.

The HZFD-300 Battery Discharge Tester is specifically designed for performing discharge tests on battery packs (24V, 48V, 110V, 220V), testing the remaining capacity of battery packs, conducting daily battery maintenance, and checking the load capacity of DC power supplies. Based on the discharge characteristics of lead-acid and lithium batteries, the tester can monitor parameters such as battery voltage, discharge current, discharge time, discharge capacity, and more, in real time during the discharge process. The instrument uses an embedded operating system to automate the entire discharge process, ensuring complete intelligent operation.

The equipment is designed for use with batteries of 2V, 6V, or 12V, specifically to activate valve-regulated lead-acid batteries (VRLA) that have experienced capacity loss due to the crystallization of the plate material. It serves as a special tool for "activating" the battery and includes functions such as "check discharge," "automatic charging," and more.
The instrument offers high power, compact size, and lightweight design. It comes with fully functional PC data management software and features a user-friendly interface for seamless human-computer interaction. This greatly reduces the daily workload of battery testing and maintenance, making it the ideal assistant for battery maintenance tasks.

Internationally, conductivity and internal resistance testing have become widely used in the daily maintenance of batteries, replacing the traditional voltage inspection method. Since conductivity or internal resistance reflects the internal condition of the battery, it has been recognized as a critical parameter for accurately and quickly assessing the health of a battery.

The battery conductance or internal resistance tester is a digital, multifunctional portable device designed to quickly and accurately measure key battery operating parameters. The tester can display and record important data such as battery voltage, conductance or internal resistance, and connecting strip resistance through online testing, allowing for a precise assessment of the battery’s condition. When connected to a computer and specialized battery data analysis software, it forms an intelligent testing system that tracks the battery's performance over time. The system can provide advance warnings of potential issues, enabling engineering and management personnel to take appropriate action for maintenance and management.

The battery internal conductance tester uses a color resistance touch screen. The instrument can be operated by finger or stylus, making it flexible and convenient. It is a digital, multifunctional, portable tester designed for fast and accurate measurement of battery operating parameters. The instrument can detect the voltage, impedance, or conductance of a single battery online, store and process the detected data, issue alarms for battery failure, and accurately distinguish the condition of the battery. The instrument allows for saving, querying, deleting, and exporting test data. The upper computer software analyzes and displays the test data through various charts and automatically generates a battery test report.

The HZRC series of Pincers Earth Testers is widely used for measuring grounding resistance in power, telecommunications, meteorology, oilfields, construction, and industrial and electrical equipment.When measuring a grounding system with loop current, does not require disconnecting the grounding wire and does not need an auxiliary electrode. It is safe, fast, and easy to use.The HZRC series of Pincers Earth Testers can detect faults that are beyond the reach of traditional methods and can be applied in situations where traditional methods are not effective.

Dielectric damage measurement is a fundamental method in insulation testing, which can effectively detect both overall damp deterioration of electrical equipment insulation and localized defects. It is widely used in electrical manufacturing, electrical equipment installation, handover, and preventive testing. The dielectric damage measurement of transformers, reactors, capacitors, casings, and lightning arresters is the most basic method for assessing their insulation performance.

This method breaks through the traditional bridge measurement technique by using frequency conversion power supply technology, a microcontroller, and modern electronic technologies for automatic frequency conversion, analog/digital conversion, and data processing. It offers fast testing speed, high accuracy, automatic digital operation, and ease of use. The power supply utilizes a high-power switch, outputting 45Hz, 50Hz, and 55Hz pure sine waves with automatic voltage regulation, providing up to 500V. An automatic filter eliminates 50Hz interference, making it suitable for substation electromagnetic interference field tests.

It is widely used in the power industry for testing transformers, reactors, casings, capacitors, lightning arresters, and other equipment.

The device is a new generation of innovative CT and PT testing instruments, launched after extensive market research and certification by strict professional testing and certification authorities. The device adopts a high-performance processor and microcomputer control architecture, along with advanced manufacturing technology, ensuring stable and reliable product performance, complete functions, high automation, and high testing efficiency. It is a leading product in the domestic relay protection and high-voltage insulation industry for testing current transformers (CT) and voltage transformers (PT).

The Transformer Volt-Ampere Characteristics Comprehensive Test Instrument is a fully automated CT and PT testing device. It can perform tests such as the CT and PT volt-ampere characteristic test, CT and PT polarity test, CT and PT ratio and polarity ratio test, automatic calculation of arbitrary point CT error curves, and analysis of CT/PT ratio discrepancies. The instrument can automatically collect, analyze, store, and print test data, and the data can also be stored on a USB drive.

Additionally, the monitor features an 8-inch color screen with a high resolution of 800x600, full-touch operation, and real-time display of test curves. This allows operators to immediately observe test results and identify any potential issues. The test report not only displays the test curve but also lists the test data in the preferred numerical order, including test time and print time, making it suitable as the original test data.

This product is ideal for field testing and calibration of various CTs and PTs due to its large output capacity and comprehensive functionality.  

The transformer short-circuit impedance tester uses a popular ARM processor with a 168MHz main frequency and 128MB of memory, which can be expanded with a 4GB memory card. The instrument features a 7-inch high-definition color touch screen and employs the EmWin display interface, making the user interface intuitive and easy to operate. It can be fully operated via the touch screen, eliminating the need for a keyboard.

The instrument supports a database and allows data export via a USB flash drive or transmission to a background computer through a data cable.

The circuit design of the instrument is both elegant and innovative, providing superior performance, powerful functionality, compact size, and lightweight construction. In addition to testing the impedance load parameters of the transformer, the instrument can also measure harmonic content and waveforms on-site. With its user-friendly operation, the instrument offers a reliable foundation for transformer parameter analysis.  

The Transformer LV Short-Circuit Impedance Tester is designed for use in LV load impedance testing during delivery, overhaul, trial tests, and handover tests of power transformers (both single-phase and three-phase).

It measures the short-circuit impedance (%) of the power voltage on-site and compares it with the value indicated on the nameplate or the factory default. This helps identify any defects, such as winding displacement or deformation, which may result from major failures during transportation, installation, or operation after the delivery test. (A significant change in short-circuit impedance is considered if it exceeds ±3%, as specified in the China International Conference on Electricity Distribution 2000 (“CICED 2000”)).

The Transformer LV Short-Circuit Impedance Tester does not require an external voltage regulator and uses a primary connection mode. Once the parameters are entered, the tester automatically begins the three-phase testing, calculates the impedance error percentage, and provides intuitive results. This is a rapid and efficient tester for detecting winding deformation in transformers on-site.