The intermolecular forces form the interfacial tension or surface tension of a liquid, and the magnitude of the tension value can reflect the physical and chemical properties of the liquid and its material composition. It is one of the important indicators for evaluating product quality in related industries. The fully automatic tension tester produced by our company complies with the GB/T6541 standard and is based on the ring method (platinum ring method) to measure the surface tension (liquid gas phase interface) and interfacial tension (liquid-liquid phase interface) of various liquids. This method is widely used due to its advantages of simple operation and high accuracy. Widely used in industries such as electricity, petroleum, chemical, pharmaceutical, food, teaching, etc
The intermolecular forces form the interfacial tension or surface tension of a liquid, and the magnitude of the tension value can reflect the physical and chemical properties of the liquid and its material composition. It is one of the important indicators for evaluating product quality in related industries. The fully automatic tension tester produced by our company complies with the GB/T6541 standard and is based on the ring method (platinum ring method) to measure the surface tension (liquid gas phase interface) and interfacial tension (liquid-liquid phase interface) of various liquids. This method is widely used due to its advantages of simple operation and high accuracy. Widely used in industries such as electricity, petroleum, chemical, pharmaceutical, food, and education.
KDYD-2845kV Intelligent Surge Withstand Voltage Tester A high-precision, smart testing solution for turn-to-turn insulation in motors, transformers, and coils up to 15kV. Featuring automated waveform analysis, robust safety protection, and 101J high-energy output, it ensures fast, reliable, and traceable quality control in manufacturing and maintenance.
The KDYD-2845kV Intelligent Turn-to-Turn Withstand Voltage Tester is a digital device designed to test turn-to-turn insulation in motor and transformer windings. It applies high-voltage pulses and utilizes an integrated industrial computer and software to analyze waveforms, intelligently detecting defects such as inter-turn short circuits. Featuring high safety (multiple protections), high precision, and high energy output, this tester is suitable for production and quality control of electrical equipment rated at 15,000V and below, serving as an advanced instrument for intelligent and efficient withstand voltage testing.
The KDZR-ZL conductive shoe DC resistance tester is used to measure the resistance of conductive shoes in power safety tools. The preventive test is mainly conducted to discover the hidden dangers of conductive shoes. According to the requirements of GBT 6568-2008 Shielding Clothing for Live Working and DLT 976-2017 Preventive Testing Regulations for Live Working Tools, Devices and Equipment, the resistance of conductive shoes shall not exceed 500 Ω. Not only must the manufacturing plant be inspected according to this standard before leaving the factory, but it can only be shipped after passing the inspection. Regular inspections must also be carried out according to this regulation during actual use, and only after passing the inspection can it be worn. This instrument is a specialized device developed in accordance with national regulations for measuring the resistance of conductive shoes. It has the characteristics of small size, light weight, and high accuracy. The instrument adopts a touch screen integrated design, with simple operation and one click testing. It is equipped with a micro printer, which can print in real-time or query.
Product Description: Portable Relay Protection Tester The Portable Relay Protection Tester is a high-precision, handheld test instrument designed for comprehensive field verification of relay protection systems, intelligent electronic devices (IEDs), and automation equipment in power systems. Combining advanced digital signal processing, high-resolution output, and an intuitive interface, this compact yet powerful tester delivers laboratory-grade accuracy in a rugged, portable form factor—perfect for on-site commissioning, maintenance, and troubleshooting. Equipped with multi-channel programmable AC voltage and current sources, precise phase and frequency control, built-in battery power, and a full suite of dedicated test modules, it supports a wide range of protection relay testing scenarios—from basic manual tests to complex multi-state fault simulations.
The KDJB-1200Y is a high-precision, six-phase relay protection tester designed for comprehensive testing of power system protection devices. It delivers flexible voltage and current outputs with excellent accuracy and stability, supporting a wide range of test scenarios including overcurrent, impedance, and transient fault simulations. Equipped with advanced DSP technology, a high-fidelity linear amplifier, and multiple digital interfaces, it ensures reliable, efficient, and automated protection system calibration. Compact and portable, it's ideal for field and laboratory use in power systems.
The KDDT-10A Ground Conductance Tester is a high-precision device designed for measuring the conductivity and contact resistance of grounding systems, ensuring electrical safety and reliability in power systems, industrial equipment, and building infrastructure. Compliant with DL/T475-2006 (Guidelines for Measuring Grounding System Parameters), it delivers accurate results for grounding electrode resistance, bonding integrity, and network continuity.
The KDZD-JC softening breakdown tester follows the standard GB/T4074.6-2008/IEC 60851-6; Inspection standard: JB/T4279.8-2008, suitable for testing the insulation performance of enameled round wires and thin film wrapped round wires with a nominal diameter of 0.020mm to 3.000mm and below, as well as flat wires with a diameter of 10mm to 2mm and below, after softening in a hot state. The instrument can automatically measure, control, adjust and display temperature; According to the set preheating time, target temperature, and test time, the instrument automatically completes the preheating of the sample, applies load, and test voltage. When the test time is reached or the sample is broken down, it automatically unloads the load and alarms, and displays the test time and temperature. The entire testing process is automatically completed.
The KDZD5550 series cable testing terminal is used for AC testing and measurement of partial discharge and tan δ plastic insulated medium voltage cables. These cable terminals are oil insulated. Its main features include easy operation, short cable preparation time, and short setup time. The cable end can be prepared far away from the testing laboratory, and the cable can be easily installed on the terminal. Under normal circumstances, the insulation oil (commercially available mineral oil) used in cables can be used at the terminal for several months before replacement or filtration is required.
