Products

Contact Resistance Tester is made and contained of advanced high-power switching power supply technology and advanced electronic circuit. It is the dedicated tester for the resistance of high and low switch, cable wire and welding joint. Its current uses national standard GB736 recommended standard DC, can measure the resistance value of being tested object under standard current status. The tester is small dimension, light weight, strong anti-interference, high precision, easy operation and perfect function protection and so on.

The HZ1151 fully automatic apparent viscometer (CCS) complies with technical specifications such as GB/T6538-2010 and ASTM D5293; it is suitable for testing the low-temperature dynamic viscosity index of engine oil. The instrument can measure the apparent viscosity of oil at a temperature of -35°C to -5°C with an interval of 5°C. It has the advantages of accurate measurement, good repeatability, stable performance and simple operation.

It is suitable for measuring the apparent viscosity of engine oil at a shear stress of about 500 to 20000 mPa.s and a shear rate of 105 to 104 S-1 at -5°C to -30°C. The instrument uses fully automatic temperature control equipment, users only need to operate on the color touch screen to quickly and easily perform testing and analysis.

The device is controlled by the single-chip microcomputer , with a high degree of automation, automatic discharge functions. It is a test instrument of high precision, simple, direct way to achieve fast transformer measurement.

The Insulation Resistance Tester is a vital tool in electrical engineering that ensures safety and reliability by measuring the insulation quality of electrical equipment. By identifying potential issues before they escalate, these testers help prevent hazardous situations and costly downtime. Available in various models with features like adjustable test voltages and data logging, modern Insulation Resistance Testers are portable and easy to use. Investing in high-quality testers, such as those from Huazheng Electric, allows organizations to protect assets, comply with safety standards, and reduce costs associated with electrical failures.

The device is controlled by the single-chip microcomputer , with a high degree of automation, automatic discharge functions. It is a test instrument of high precision, simple, direct way to achieve fast transformer measurement.

The DC Winding resistance is the transformer’s semi-finished product, finished product test, installation, commissioning test, and electric part prevention test necessary test project，the transformer coil can effectively find the device welding, connecting parts loose, missing unit, disconnection, and other manufacturing default and other hidden danger occurred after operation.

To meet fast measurement requirement, we developed DC Winding Resistance Tester. The instrument is a newpowerful technology, small size, light weight, high output current and other characteristics.

The device is controlled by the single-chip microcomputer , with a high degree of automation, automatic discharge functions. It is a test instrument of high precision, simple, direct way to achieve fast transformer measurement.

Our export-type vehicle-mounted intelligent cable fault location system is a high-performance device developed by our company to keep pace with the development trends of the international power industry and meet the dynamics of rapid power development. Designed to meet the needs of power cable operation and maintenance sites, it integrates a complete set of cable fault testing functions. The entire system is designed with an integrated approach, eliminating the need for vehicle transport during export. This allows for flexible vehicle selection and portable installation in the destination country.

The entire system meets the General Technical Conditions for Special Testing Instruments for Power Equipment as specified in the People's Republic of China power industry standards DL/T849.1-2019 ~ DL/T849.3-2019. It is used for testing various faults in power cables, and its functions cover accurate testing of faults in power cables, railway and airport signal control cables, and street light cables.

HZ5375 5000A Primary Current Injection Tester (referred to as upconverter), our own self-developed test equipment, it combines the advantages of similar products at home and abroad, using CNC technology, strong anti-interference ability, compared with the previous generation upconverter Because of the use of low-power, large-capacity self-coupling voltage regulator and high permeability iron core converter, it has the advantages of large output power, small size and light weight. Mainly used in primary bus protection and various current transformer transformation ratio test projects, it is widely used in electric power, railway, petrochemical, metallurgy and mining companies such as scientific research, production and electrical test site.

A Primary Current Injection Tester is an essential tool for electrical engineers and technicians. It plays a vital role in maintaining the safety and reliability of electrical systems by ensuring that protective devices function correctly under fault conditions.The  HZ5376 High Current Generator (hereinafter referred to as the current booster) is a testing equipment independently developed by our company.

A Primary Current Injection Tester is a specialized device used in the electrical engineering field to test and verify the performance of protective relays, circuit breakers, and other electrical equipment. This testing method involves injecting a high current directly into the primary circuit of the device under test, allowing engineers to assess its operational integrity and response to fault conditions.

An Impulse Withstand Generator (IWG) is a specialized electrical testing device designed to evaluate the insulation strength of electrical equipment and components under high-voltage conditions. This generator simulates the transient overvoltages that electrical systems may encounter during lightning strikes or switching operations, allowing engineers to assess the durability and reliability of insulation materials.

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.