Product List
Hubungi kami
Email：qiao@hvtest.cc
Seluler：+8615871365102
Aplikasi apa：+8615871365102
-
Be wary of electrical "killers": How can insulation oil withstand voltage testers safeguard equipment safety?
2026-06-12In the operation of the power system, insulating oil plays a crucial role. It is not only the insulating medium for electrical equipment, but also responsible for heat dissipation and arc extinguishing. The breakdown voltage of insulating oil, also known as "withstand voltage", directly affects whether the equipment can work safely and stably. If the voltage resistance of insulating oil decreases, it is like planting a time bomb for electrical equipment, which may cause insulation breakdown accidents at any time.What is an insulation oil withstand voltage tester? Simply put, it is an instrument specifically designed to measure the breakdown voltage of insulating oil. By applying gradually increasing voltage until the insulating oil is broken down, and recording this voltage value, we can evaluate the insulation performance of the insulating oil. Wuhan UHV Power Technology Co., Ltd. is well aware of the importance of this testing and is committed to providing reliable testing equipment.
LAGI -
In depth: The Key Role of DC High Voltage Pulse Generator in Power System
2026-06-12What is a DC high-voltage pulse generator?Are you a bit unfamiliar with the name DC high-voltage pulse generator? Don't worry, let's talk about it today. Simply put, it is a device capable of generating high-voltage, short-term, repetitive DC pulse signals. Imagine taking a quick "X-ray" of the power system, by applying high-voltage pulses, we can "see" the subtle "lesions" inside the equipment. It plays a crucial role in the insulation status detection and fault location of power equipment such as transformers and cables.Influencing factors and application toolsThere are many factors that affect the performance of DC high-voltage pulse generators, including pulse amplitude, width, rise time, repetition frequency, etc. The precise control of these parameters is directly related to the accuracy of detection.In practical applications, we often need to combine multiple tools to work collaboratively. In addition to the generator itself, high-voltage detectors, oscilloscopes, signal
LAGI -
Why do you need to know your insulation resistance? How to choose a qualified insulation meter?
2026-06-10In the power system, the stability of insulation resistance is the cornerstone for ensuring the safe operation of equipment. Have you ever thought about the serious consequences that may arise from aging or damage to seemingly insignificant insulation materials? Today, let's talk about the small tool of insulation meter, what role it plays in our daily power maintenance, and how to choose a reliable device.What is insulation resistance?Simply put, insulation resistance measures an object's ability to prevent current from passing through. In power equipment, the function of insulation materials (such as rubber, plastic, porcelain, etc.) is to separate live and non live parts to prevent leakage. The higher the insulation resistance, the better the insulation performance and the safer the equipment. On the contrary, if the insulation resistance is too low, it means that the insulation performance has decreased, and there is a risk of leakage, short circuit, and even fire.The '
LAGI -
Relay protection tester: the hero behind the stable power grid, do you really understand it?
2026-06-10In the safe operation of the power system, there are always some "behind the scenes heroes" silently contributing their strength, and the relay protection tester is an indispensable member among them. You may not be familiar with it, but it is a key device that ensures the stability of the power grid and prevents the spread of faults. What exactly is it? How does it work?What is a relay protection tester?Simply put, a relay protection tester is a specialized instrument used for functional and performance testing of protective devices in power systems. Protective devices are like "sentinels" of the power grid, constantly monitoring the operating status of the grid. Once abnormalities are detected, they will quickly respond, isolate faults, and protect the safety of the entire power grid. And the relay protection tester is used to "examine" these sentinels, ensuring that they can function accurately and reliably at critical moments.Factors affecting the performance of relay protection te
LAGI -
Why do you need to regularly measure the insulation resistance of your electrical equipment?
2026-06-10In the guarantee system for the safe operation of power equipment, the insulation resistance meter plays a crucial role. Perhaps you may feel a little unfamiliar with this name, but it is a ruler for measuring the "health status" of electrical equipment. What is insulation resistance, why do we need to care about it, and how can we use an insulation resistance meter to perform this test?Understand insulation resistance and insulation resistance meterSimply put, insulation resistance refers to the resistance of current flowing through an insulating material. Good insulation means that current can only flow along the designed conductor and will not 'deviate' to the equipment casing or other non electrified parts. When the insulation performance decreases, there is a risk of leakage, short circuit, and even electric shock in the equipment.As the name suggests, an insulation resistance meter is an instrument specifically designed to measure the magnitude of insulation resistance. I
LAGI -
Why is the dielectric strength of insulating oil so important? Understand the mystery of its detection in one article
2026-06-10Behind the safe operation of power equipment, there is a crucial testing task - insulation oil dielectric strength testing. You may ask, what exactly is this' insulating oil '? Simply put, it is like a "protective fluid" for power equipment (such as transformers), which not only provides heat dissipation for the equipment, but more importantly, provides insulation to prevent leakage and short circuits. And dielectric strength is the key indicator for measuring this insulation ability.Why should we pay attention to the dielectric strength of insulating oil?Equipment safety is the core: the dielectric strength of insulating oil directly affects the safe and stable operation of power equipment. If the intensity decreases, it may lead to a slight decrease in equipment performance, and in severe cases, it may cause major accidents.There are many influencing factors: the dielectric strength of insulating oil is not constant, it can be affected by various factors, such as the water co
LAGI -
Recommendation: ZGF DC High Voltage Generator, the secret weapon for precise testing!
2026-06-08In the research and development, production, and quality inspection of power equipment, the DC high voltage generator ZGF plays a crucial role. It is like a rigorous but impartial 'medical examiner', evaluating insulation performance by applying high voltage to ensure the safety and reliability of equipment during operation. For many engineers and technicians, understanding and mastering the use of the DC high voltage generator ZGF is the key to improving work efficiency and product quality.Unveiling the Mysterious Veil of DC High Voltage GeneratorWhat is the ZGF DC high-voltage generator? Simply put, it is a device capable of generating high-voltage direct current, mainly used for conducting DC withstand voltage tests on various electrical equipment such as transformers, cables, insulators, etc. By applying a DC voltage higher than its normal operating voltage, the insulation material can be detected for defects or aging, thereby predicting its potential breakdown risk.Key fac
LAGI -
Why is insulation resistance so important? Understand the key and practical aspects of an article
2026-06-08In the field of power equipment and electrical engineering, we often hear a term - insulation resistance. What exactly is it? Why does it play such an important role in maintaining the safety and stable operation of equipment? Today, let's talk about a concept that may sound professional, but is actually closely related to us.What is insulation resistance?Simply put, insulation resistance refers to the ability of insulation materials (such as rubber, plastic, ceramics, etc.) in electrical equipment or circuits to block direct current when energized. The higher this value, the better the performance of the insulation material and the less likely it is to leak electricity. Imagine that the insulation layer is like a "protective cover" for wires, and insulation resistance is an indicator of how "strong" this protective cover is.The 'mastermind behind' affecting insulation resistanceSo many factors can affect the "high or low" insulation resistance?Environmental factors such as
LAGI -
Why does the reading of the DC grounding resistance tester fluctuate? Influencing factors and solutions
2026-06-08The stability of grounding resistance is crucial for the safe operation of the power system. The DC grounding resistance tester, as a key tool for detecting the quality of grounding systems, its accurate readings are directly related to the safety of equipment and personnel. Many users may find that sometimes the readings of the tester seem unstable and even fluctuate during actual operation. What the hell is going on here? Today we will talk about what affects the reading of the DC grounding resistance tester and how to obtain more reliable results.What is a DC grounding resistance tester?Simply put, a DC grounding resistance tester is a specialized instrument used to measure the grounding resistance of grounding devices. It applies a certain amount of direct current to the grounding body, measures the potential difference between the grounding body and the ground, and then calculates the grounding resistance value according to Ohm's law. The smaller the grounding resistance, the
LAGI -
DC High Voltage Tester: Guardian of Safe Operation of Power Systems
2026-06-08Ensuring the reliability of equipment insulation performance is crucial in the operation and maintenance of the power system. The DC high-voltage tester, as a key detection equipment, plays an indispensable role in ensuring the safe and stable operation of the power system. What exactly is it? How can we better utilize it?What is a DC high voltage tester?Simply put, a DC high-voltage tester is a device that can generate high voltage DC electricity and test the insulation strength of electrical equipment by applying DC voltage. We know that after prolonged operation, the insulation materials of power equipment may age, become damp, or be damaged, which greatly increases the risk of insulation breakdown and can lead to power accidents. Using a DC high-voltage tester for insulation withstand voltage testing can effectively evaluate the health status of equipment insulation and promptly detect potential hazards.Factors affecting the effectiveness of DC high voltage testsTo ensure the accur
LAGI -
Why is DC resistance measurement so important? This instrument tells you the answer
2026-06-05In the maintenance and testing of electrical equipment, the measurement of DC resistance is a crucial step that cannot be ignored. It's like giving a 'health check' to the device, which can help us detect potential problems in a timely manner. What is a DC resistor? Why is its measurement so crucial? What other useful tools can help us handle it? Today, let's talk about this topic.What is a DC resistor?Simply put, DC resistance is the obstruction encountered by current flowing in a DC circuit. Imagine the water flow in a pipe. If there are wrinkles or blockages in the pipe, the water flow will be obstructed, just like a resistor in an electrical circuit. For electrical equipment, its conductive components (such as transformer windings, switch contacts, etc.) have a certain resistance.What are the factors that affect DC resistance?The material itself: Different conductive materials, such as copper and aluminum, have different electrical resistivity.Length and cross-secti
LAGI -
Why does your circuit test get stuck? It's time to learn about the resistance circuit tester!
2026-06-05In the electronic world, stable operation of circuits is crucial. But sometimes, even if we are cautious, we may encounter various obstacles. Among them, accurate measurement of circuit grounding resistance is particularly important. Today, let's talk about how to use a reliable assistant - a resistance circuit tester, to make your circuit testing twice as efficient.What is a resistance circuit tester?Simply put, a resistance circuit tester is an instrument specifically designed to measure the resistance of the grounding circuit in a circuit. It calculates the total resistance of the grounding circuit by injecting a certain current and measuring the voltage drop. This value is directly related to the safety performance of electrical equipment, especially in the event of a fault, whether the fault current can be quickly and effectively introduced into the ground to protect personal and equipment safety.What are the "behind the scenes" factors that affect grounding resistance?To make
LAGI -
Recommendation: DC resistance rapid measuring instrument, doubling the efficiency of electrical detection!
2026-06-04In the field of electrical equipment maintenance and testing, DC resistance rapid measuring instruments play a crucial role. It is not only a measuring tool, but also the "eyes" that ensure the safe and reliable operation of electrical equipment. What exactly is this device that sounds a bit technical?What is a DC resistance rapid measuring instrument?Simply put, it is an instrument used to quickly and accurately measure the DC resistance of various electrical equipment, such as transformers, switches, motor windings, etc. The DC resistance of electrical equipment is a key indicator for evaluating its insulation performance, connection reliability, and determining the presence of internal faults such as wire breakage and poor contact. Traditional methods may be time-consuming and labor-intensive, while DC resistance rapid measuring instruments can significantly improve efficiency and reduce downtime.Influencing factors and clever responsesThere are many factors that can affect the meas
LAGI -
DC Voltage Generator: Science and Applications Behind Stable Output
2026-06-03In the field of electronics and electrical engineering, there is a widespread demand for stable and controllable DC voltage. And the DC voltage generator is a powerful tool to meet this demand. What exactly is it? What are the key "tricks" worth understanding?What is a DC voltage generator?Simply put, a DC voltage generator is a device that can generate stable and constant directional DC electricity. Unlike the alternating current we use in our daily lives, the direction of current in direct current is single. A stable and reliable DC voltage source is crucial in various precision instruments, electronic equipment testing, and insulation withstand voltage experiments. For example, in the research and production of power equipment, it is necessary to accurately control the output DC voltage to simulate various operating conditions and ensure the reliability of the equipment.Key factors affecting DC voltage outputTo obtain high-quality DC voltage, several factors cannot be ignored:Filter
LAGI -
Do you know how the cable breakpoint tester works?
2026-06-03In the operation and maintenance of power systems, cable faults in cable lines are a thorny issue, and cable breakpoint testers are a key tool to solve this problem. How does it actually work? Today we will talk about this topic.What is a cable breakpoint tester?Simply put, a cable breakpoint tester is a device specifically designed to detect open circuit faults (i.e. breakpoints) in cable circuits. It can accurately locate the location of breakpoints in complex cable networks through specific electromagnetic principles, greatly reducing the time for fault diagnosis and repair, and providing strong support for ensuring the continuity and stability of power supply.Factors affecting the accuracy of cable breakpoint testingTo achieve the best performance of the cable breakpoint tester, some factors need to be particularly noted:The burial depth and environment of cables: The deeper the cable, the greater the signal attenuation and the greater the difficulty of testing. The properties and
LAGI -
Do you know the secrets of mastering cable DC resistance?
2026-06-03In the stable operation of the power system, cables play a crucial role. As the core indicator for measuring the conductivity of cables, the precise measurement of cable DC resistance is not only related to the efficiency of power transmission, but also the key to ensuring equipment safety. Today, let's talk about this topic and see how Wuhan UHV Power Technology Co., Ltd. has been deeply involved in this field.What is cable DC resistance?Simply put, the DC resistance of a cable refers to the degree to which its conductor obstructs the current when a stable DC current is applied to the cable. The smaller this value, the better the conductivity of the cable and the smaller the energy loss. Imagine, just like the thicker and smoother the water pipe, the easier it is for water to pass through, and the same goes for cables.Factors affecting the DC resistance of cablesTo accurately measure, understanding the influencing factors is the first step. There are mainly the following points:Co
LAGI -
Intelligent Diagnosis: The Secret of Efficient Cable Fault Testing System
2026-06-01In the stable operation of the power system, cables play a crucial role. Once a cable malfunctions, it can affect power supply in some cases and cause safety accidents in others. At this point, an efficient and accurate cable fault testing system becomes particularly crucial. What exactly is this system? How does it work?What is a cable fault testing system?Simply put, a cable fault testing system is a set of equipment and software that integrates multiple advanced technologies, specifically designed to quickly and accurately locate the fault point of power cables. It is like the "doctor" of the power system, able to diagnose the "symptoms" of cables and buy valuable time for repairs. This system typically includes components such as a signal generator, pulse generator, high-voltage power supply, locator, and data analysis software.Factors affecting cable fault testingTo make fault location more accurate, we need to consider several aspects:The type and length of cables: Different mate
LAGI -
Why does your power grid need a 'cable fault comprehensive tester'?
2026-06-01Cables are the 'arteries' that transport energy. Once the cable malfunctions, it can affect power supply at a minor level and potentially cause safety accidents at a severe level. At this point, a comprehensive cable fault tester becomes particularly important. It is like a "health detective" of the power grid, able to quickly and accurately locate "lesions" and restore normal power supply.What is a comprehensive cable fault tester?Simply put, the cable fault comprehensive tester is a device that integrates multiple testing functions, specifically designed to detect and locate the fault points of power cables. It can complete precise positioning of various types of cable faults (such as low resistance, high resistance, flashover, grounding, etc.) from insulation resistance testing and DC withstand voltage testing of cables.What are the factors that affect cable faults?Environmental factors such as humidity, high temperature, and corrosive gases may accelerate cable aging.Aging
LAGI -
Still struggling with cable faults? These tips help you quickly locate yourself!
2026-06-01Cable failure is like a sudden but unavoidable "big test" in the power system. When there is a problem with the power transmission line, resulting in cable failure, the entire power supply system may be paralyzed, which can affect daily life or cause huge economic losses. How can we quickly and accurately locate these "hidden" fault points underground or in equipment? Today, let's talk about the cable fault locator as a reliable assistant and how to better utilize it.What is a cable fault locator?Simply put, a cable fault locator is an instrument specifically designed to detect and locate power cable fault points. It uses various physical principles, such as electromagnetic induction, pulse reflection, etc., to "auscultate" the health status of the cable and ultimately provide the specific location of the fault. Imagine this is like performing a 'B-ultrasound' on a long cable, which can accurately pinpoint the location of the 'lesion'.Factors affecting cable fault l
LAGI -
Exploring cable 'lesions': a magical tool for efficiently locating faults
2026-06-01In the process of power transmission, cables play a crucial role as the "arteries" of the city, transporting a continuous stream of energy. Even the strongest "artery" is inevitably prone to "lesions" - cable failures. Once a malfunction occurs, it will not only affect the stability of power supply, but also bring huge economic losses and safety hazards. At this point, an efficient and accurate cable fault locator becomes particularly crucial.What exactly is a cable fault locator? Simply put, it is an instrument specifically designed to locate cable fault points. Think about it, a cable that is several kilometers or even tens of kilometers long, once there is a problem, searching for that "lesion" in the vast "sea of lines" is like looking for a needle in a haystack without suitable tools! The cable fault locator is the "microscope" or "probe" that allows you to quickly and accurately locate the fault location.What is the 'secret weapon' of cable fault addressable devices?The r
LAGI
