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Huazheng

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.