KDSL-82-500A short-time overcurrent tester is applicable to various power and industrial site environments, mainly including:
Substation and power distribution room: used for transformation ratio and polarity verification after installation of current transformer (CT) and short-time overcurrent test of relay protection device;
Power construction and maintenance site: quickly verify CT performance before equipment is put into operation or during maintenance to ensure accurate and reliable protection system;
Electrical equipment manufacturer and laboratory: carry out ex-factory test, metering verification or R&D test of transformer;
Railway, petrochemical, metallurgical, mining and other enterprise owned power stations: used for regular detection and troubleshooting of internal power supply and distribution systems.
The equipment conforms to GB6587.1-86 Group III standard, and can operate stably in indoor and outdoor environment of - 10 ℃ -+50 ℃, humidity ≤ 90% (non-condensing) and altitude below 1500m. It supports AC 220V single-phase power supply and is compact and easy to carry. It is especially suitable for mobile operation and site use with limited space.
KDSL-82-500A short-time overcurrent tester is applicable to various industrial and power field environments, and its main applications include:
Substation and power supply station: used for transformation ratio and polarity verification of current transformer (CT) and short-time overcurrent test of primary bus protection device;
Power engineering and commissioning site: quickly verify CT installation quality in new or reconstructed projects to ensure accurate action of relay protection system;
Manufacturer of electrical equipment: function and accuracy test shall be carried out before ex-factory of transformer, switch cabinet, protection device and other products;
Railway, petrochemical, metallurgical, mining and other industrial and mining enterprises: used for maintenance and overhaul of their own power distribution systems to ensure reliable protection of key equipment under fault current;
Measurement and testing and the third party laboratory: carry out high-accuracy current comparison, transformer verification and other standardized tests.
The equipment conforms to GB6587.1-86 Group III instrument standard, and can work stably in indoor and outdoor environment with temperature of - 10 ℃ -+50 ℃, humidity ≤ 90% (non-condensation) and altitude below 1500m. Integrated structure design, light and portable, support AC 220V single-phase power supply, without complex auxiliary equipment, especially suitable for space limited or mobile operation scenes, is an ideal tool for efficient, safe and accurate on-site electrical test.
KDSL-S500A three-phase large current generator is applicable to a variety of power and industrial test scenarios, and its main application environments include:
Low-voltage complete switchgear manufacturer: used for temperature rise test and type test of GCK, MNS, GGD and other switchgear, meeting the requirements of GB 7251.1-5 standards;
Power system operation&maintenance and inspection center: conduct verification and function test on circuit breaker, thermal relay, contactor and other protection devices in substation, power supply station or maintenance base;
Electrical laboratory and quality inspection organization: carry out type test, ex-factory inspection and third-party certification test of electrical products, and support long-term stable output;
Project commissioning site: it can be deployed in the power distribution room, power plant or construction site, and the installed equipment shall be subject to power-on verification and protection characteristics verification;
University and scientific research unit: used for teaching demonstration or research on thermal effect and current-carrying capacity of electrical equipment.
The working environment of the equipment is wide (- 10 ℃ -+50 ℃, humidity ≤ 90% non-condensation, altitude ≤ 1500 m), with IP20 protection grade and forced air cooling system, which can operate stably for a long time in the normal indoor industrial environment, and also suitable for temporary outdoor operation. Its high-precision, strong anti-jamming capability and full-automatic control characteristics ensure that the high-current test task can still be completed safely and efficiently in a complex electromagnetic environment.
Introduction to Application Environment of KDSL-S500A Three-phase Large Current Generator (simplified version)
KDSL-S500A three-phase large current generator is applicable to the site and laboratory environment of power system, industrial and mining enterprises, electrical equipment manufacturing and testing units, and is mainly used for power-on verification and overload/short circuit characteristic test of thermal relay, motor protector, circuit breaker, contactor, switch cabinet, protection panel and other equipment.
The equipment conforms to GB6587.1-86 Group III instrument standard, can operate stably in indoor or outdoor conventional environment, and adapt to substation, distribution room, maintenance workshop, commissioning site and other working conditions. It is small in size, light in weight, strong in anti-jamming capability, supports AC 380V/220V three-phase four-wire power supply, outputs 0~500A continuously adjustable standard sine wave large current, meets the test requirements of high accuracy (0.5 level) and high stability (current stability of 0.5%), and is an ideal tool for verification and function verification of electrical protection devices.
Application Environment of KDJS-8A Intelligent Insulating Gloves/Shoes Withstand Voltage Test Device (simple version)
KDJS-8A intelligent insulating gloves/boots withstand voltage test device is specially designed for preventive test of power system safety tools and widely used in the following scenes:
Power supply bureau, substation and power plant: it is used to regularly test the withstand voltage performance of insulation gloves, insulation boots and other personal protective equipment to ensure the personal safety of operators;
Power maintenance and operation center: carry out batch automatic withstand voltage test for insulating tools and instruments in use every half a year according to the requirements of Preventive Test Procedures for Electric Safety Tools and Instruments;
Safety tools testing station or the third party laboratory: as a standardized testing equipment, it meets the requirements of multi-channel synchronous testing, automatic data recording and tracing;
Electric power construction and engineering unit: carry out quick acceptance or re-inspection on the construction site or warehouse for newly purchased or in-service insulating articles;
Universities and scientific research institutions: used for electrical safety teaching demonstration or insulation material performance research.
The equipment supports dry test (insulating boots) and wet test (insulating gloves) modes, and is equipped with automatic water injection, wireless leakage current monitoring, over-current and over-voltage protection, etc. It can operate stably in the indoor laboratory or on the mobile detection vehicle, adapt to the normal temperature and humidity environment, operate safely and efficiently, and fully meet the "batch, intelligent and compliance" detection requirements of insulation protection articles in the power industry.
KDSF-300 SF6 comprehensive tester is a portable high-precision comprehensive analysis instrument specially designed for detecting the gas state of SF6 electrical equipment in the power system, which is applicable to various severe or complex field and laboratory environments. The main application environments include:
HV/EHV Substation
It is used for daily patrol inspection, handover test and state maintenance of SF6 gas-filled equipment such as GIS (gas-insulated metal-enclosed switchgear), GCB (SF6 circuit breaker) and CT/PT (current/voltage transformer).
It can work stably in outdoor or indoor environment of 500kV and above substations and adapt to high temperature, low temperature, humidity change and other climate conditions.
Power plant and power transmission and distribution operation and maintenance site
Periodic gas quality evaluation shall be carried out for SF6 equipment in operation at the step-up station and regional distribution center of the power plant to prevent insulation failure caused by excessive moisture or accumulation of decomposition products.
Power equipment manufacturing and maintenance workshop
SF6 equipment such as transformer and switch cabinet shall be used to verify the gas charging quality, test the tightness and discharge of internal materials before delivery or during the overhaul process, so as to ensure that the products meet the requirements of national standards (such as GB/T 8905 and DL/T 596).
Emergency repair and fault diagnosis scene
When the equipment is abnormal (such as alarm and trip), rush to the site quickly to obtain dew point, purity and decomposition product data synchronously by taking gas once to assist in judging whether there are internal overheating, partial discharge or moisture and improve the fault locating efficiency.
Environmental protection and gas recovery management
In the process of SF6 gas recovery, purification or reuse, it is used to monitor the gas quality, ensure that the recovered gas meets the recharge standard, and help green grid construction and greenhouse gas emission reduction.
Environmental adaptability characteristics:
Wide temperature working range: it can operate normally under the ambient temperature of - 20 ℃ -+50 ℃, meeting the demand of most regions in China in four seasons;
Dust-proof and splash-proof design: good protection grade, suitable for outdoor substation dust, light rain mist and other complex working conditions;
No external air source or power supply required: built-in battery power supply, supporting independent operation on site, especially applicable to GIS bay area without power supply or limited space;
Strong anti-electromagnetic interference capability: the measurement stability can still be guaranteed under strong electromagnetic field environment (such as close to the high-voltage bus in operation).
To sum up, KDSF-300 SF6 comprehensive tester has become an indispensable core testing tool in the whole life cycle management of SF6 equipment of power system due to its multi-function integration, high reliability and strong environmental adaptability.
This instrument is a multi-functional measuring instrument, equivalent to four conventional test instruments: active transformer capacity tester+transformer characteristic parameter tester+transformer DC resistance tester+transformer material analyzer. It can accurately measure a series of power frequency parameters such as material, capacity, type, no-load current, no-load loss, load loss, impedance voltage and DC resistance of various transformers.
This product has many advantages such as small size, light weight, high measurement accuracy, good stability and simple operation. It can completely replace the previous method of measuring transformer loss and capacity with multi-meter method. The wiring is simpler, the testing and recording are more convenient, and your work efficiency is greatly improved.
Application of ball gap gauge:
When conducting the experiment, connect the ball gap device in parallel with the test sample. The ball gap device itself has a protective resistor of 1 ohm per volt in series. First, adjust the ball gap to 60% of the test voltage (the discharge distance of the ball gap can be checked from the ball gap discharge voltmeter below, Tables 1 and 2). At this time, the test sample should be connected simultaneously. Measure the readings of the test transformer and low-voltage side voltmeter when the ball gap is discharged (take the average of 3-4 times), and then measure the readings of the voltmeter at 70% and 80% of the test voltage in the same way. Use this three-point line value as a curve (mostly a straight line), and then extend this curve (mostly calculated proportionally) to a position 10-15% higher than the required test voltage, as a discharge protection against overvoltage that may occur during the withstand voltage test process.
When conducting the experiment, connect the ball gap device in parallel with the test sample. The ball gap device itself has a protective resistor of 1 ohm per volt in series. First, adjust the ball gap to 60% of the test voltage (the discharge distance of the ball gap can be checked from the ball gap discharge voltmeter below, Tables 1 and 2). At this time, the test sample should be connected simultaneously. Measure the readings of the test transformer and low-voltage side voltmeter when the ball gap is discharged (take the average of 3-4 times), and then measure the readings of the voltmeter at 70% and 80% of the test voltage in the same way. Use this three-point line value as a curve (mostly a straight line), and then extend this curve (mostly calculated proportionally) to a position 10-15% higher than the required test voltage, as a discharge protection against overvoltage that may occur during the withstand voltage test process.
Typical application environment of discharge ball gap pressure gauge (horizontal type)
The discharge ball gap pressure gauge (horizontal type) is mainly used in various professional scenarios that require high-voltage testing, overvoltage protection, and voltage calibration
The KDRS638E handheld infrared thermal imager is a high-performance infrared temperature measurement device designed for professional engineers and researchers. It integrates high-resolution thermal imaging, visible light fusion, intelligent analysis, and multi terminal interconnection, and is widely used in high demand application scenarios such as power inspection, industrial automation, building inspection, HVAC, and pipeline system maintenance.
Application field
Product development, house inspection, equipment maintenance, power inspection, electrical maintenance
The KDRS638E handheld infrared thermal imager is a high-performance infrared temperature measurement device designed for professional engineers and researchers. It integrates high-resolution thermal imaging, visible light fusion, intelligent analysis, and multi terminal interconnection, and is widely used in high demand application scenarios such as power inspection, industrial automation, building inspection, HVAC, and pipeline system maintenance
The KDRM200F entry-level handheld infrared thermal imager is designed for scenarios such as power inspection, equipment maintenance, building inspection, and HVAC system diagnosis. Equipped with a 256 × 192 high-resolution infrared core, 40mK thermal sensitivity, and manual focusing lens, it supports temperature measurement over a wide range of -20 ℃~550 ℃ with an accuracy of ± 2 ℃. Equipped with a 3.5-inch touch screen, 2 million visible light camera, laser pointer, and IP54 protection level, it is sturdy and durable, supporting WiFi/USB data transmission, cloud services, and professional analysis software. It can quickly locate thermal faults and generate reports, making it an efficient and reliable on-site inspection assistant for engineers.
In modern data centers, uninterruptible power supply (UPS) systems are critical components for ensuring data security and continuous operation. These systems rely on large battery packs to provide emergency power support in case of power outages. Regular maintenance, testing, and performance evaluation are crucial to ensure that these battery packs can operate reliably when needed. The KDZD886 series battery charge and discharge tester is an ideal tool designed for such requirements.
