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Ranking of Three phase Temperature Rise High Current Generator Enterprises
2025-11-18The fully automatic temperature rise test device under Wuhan UHV can help many power workers conduct various power tests more conveniently.In the fields of electrical equipment manufacturing, power system operation and maintenance, and quality inspection research, three-phase temperature rise high current generators are key equipment for conducting temperature rise tests on switchgear, transformers, busbars, and other equipment. It can simulate the heating situation of equipment under long-term full load or overload operation conditions, in order to test the connection reliability, material performance, and insulation tolerance of its current carrying components. It is an important technical means to prevent electrical fires and ensure the safety of the power grid. Enterprises in the industry that provide such equipment need to have strong technical research and development capabilities, strict quality control systems, and rich on-site application experience. Wuhan UHV Power Automation
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Principle of frequency conversion series resonance complete set device
2025-11-18Principle of frequency conversion series resonance complete set device? Wuhan UHV specializes in the production of series resonance, with a wide range of product selection and professional electrical testing. To find series resonance, choose Wuhan UHV. The principle of the variable frequency series resonance complete set device is to use the principle of series resonance. By adjusting the output frequency of the variable frequency controller, the reactor inductance L and the sample capacitance C in the circuit undergo series resonance, and the resonance voltage is the voltage applied to the sample. The frequency conversion resonance test device is widely used in industries such as power, metallurgy, petroleum, and chemical engineering. It is suitable for the handover test and preventive test of high-capacity and high-voltage capacitive specimens, such as generators, power transformers, GIS and high cross-linking power cables, transformers, bushings, etc. The complete set of variable fr
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Principle of frequency modulation series resonance test device
2025-11-18What is the principle of the frequency modulation series resonance test device? Wuhan UHV specializes in the production of series resonance, with a wide range of product selection and professional electrical testing. To find series resonance, choose Wuhan UHV. The frequency modulation series resonance test device applies the principle of series parallel resonance. By adjusting the output frequency of the variable frequency controller, the inductance L of the reactor in the circuit and the capacitance C of the test sample resonate, and the resonant voltage is the voltage applied to the test sample. The power supply is provided through the frequency modulation controller, and the test voltage is initially boosted by the excitation transformer to apply high voltage to the reactor L and the test sample CX. By changing the output frequency of the frequency modulation controller, the circuit is in series resonance state; The resonant frequency of the circuit depends on the capacitanc
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Quotation for Voltage Impulse Test Tester
2025-11-17The lightning impulse voltage generator test device under Wuhan UHV can help many power workers conduct various power tests more conveniently.In the fields of power energy, electrical manufacturing, and scientific research and testing, voltage impulse testing equipment is the core equipment for evaluating the insulation performance of electrical equipment and ensuring the safe and stable operation of the power grid. It is mainly used to simulate lightning overvoltage in nature or operational overvoltage inside the power grid, and to conduct tolerance tests on key equipment such as transformers, circuit breakers, insulators, and power cables. When users need to introduce such equipment to laboratories or quality inspection departments, it is crucial to understand its technical composition and value evaluation factors. This article will focus on the products of Wuhan ultra-high voltage and explore the key elements that affect the comprehensive value of voltage impulse testing instruments
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Principle of Frequency Conversion Series Resonance
2025-11-17The principle of frequency conversion series resonance? Wuhan UHV specializes in the production of series resonance, with a wide range of product selection and professional electrical testing. To find series resonance, choose Wuhan UHV. 1、 Principle of Frequency Conversion Series ResonanceAnalysis of the principle of variable frequency series resonance: In a series circuit composed of resistors, inductors, and capacitors, when the capacitance and inductance are equal, the voltage and current phases in the circuit are the same, and the circuit exhibits pure resistance, which is called series resonance. When a series resonance occurs in a circuit, the impedance of the circuit is Z=R, at which point the total impedance of the circuit is minimized and the current of the circuit is maximized. The diagram shows a one port network composed of inductor and capacitor elements in series. Its equivalent impedance is such that when resonance occurs, the port voltage and current are in phas
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Price of Transformer Temperature Rise Test Equipment
2025-11-17The fully automatic temperature rise test device under Wuhan UHV can help many power workers conduct various power tests more conveniently.In the field of power transformer manufacturing, maintenance, and scientific research identification, temperature rise testing is a key project to verify the rationality of transformer design, process level, and long-term operational reliability. This experiment simulates the operation of a transformer under rated conditions and measures the stable temperature rise of key parts such as windings, iron cores, and top oil layers. The results directly affect the load capacity, insulation aging rate, and service life of the transformer. The complexity of the technical scheme and the comprehensiveness of the configuration of the transformer temperature rise test equipment relied upon for this experiment determine its value positioning in the market. As an important equipment supplier in this field, Wuhan UHV provides solutions covering the entire process
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The service provided by the series resonance manufacturer is good
2025-11-14When choosing any testing equipment, not only should we consider its quality and brand, but also its manufacturer? Is it worth choosing for oneself? After understanding this detail, it is still very beneficial for oneself to choose a very good series resonance and enjoy excellent service. What is the service of the series resonance manufacturer?Firstly, series resonance manufacturers have always considered problems from the perspective of customers. For example, when designing series resonance devices, they can conduct market research to understand the scarce series resonance styles and models in the market? Then, by designing a series resonance with targeted design, one can naturally ensure their own choice. The designed series resonance is more in line with market demand and can better meet the needs of customers. So when choosing a series resonance, being able to select a suitable one based on one's actual needs can truly make one feel its high value and unparalleled superiority
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Sales of impulse voltage generators
2025-11-14The lightning impulse voltage generator test device under Wuhan UHV can help many power workers conduct various power tests more conveniently.In the field of power equipment testing, impulse voltage generators are crucial testing equipment, and Wuhan UHV has a significant advantage in the sales of impulse voltage generators, winning the trust of customers with its excellent product performance and high-quality service.The impulse voltage generator of Wuhan UHV adopts advanced technology design. For example, it adopts a multi-stage Marx circuit design, which can accurately output standard lightning impulse and operational impulse voltage waveforms. Through this design, parameters such as wavefront time and half peak time are accurately adjusted, and waveform distortion is low, which can effectively assess the insulation withstand performance of the equipment under impulse voltage. At the same time, the device is equipped with an intelligent control system, which ensures stable charging
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Resonant circuit
2025-11-14Resonant circuit, Wuhan UHV specializes in producing series resonance, with a wide range of product selection and professional electrical testing. When looking for series resonance, choose Wuhan UHV. Resonance is a physical harmonic vibration, in which the acceleration of an object is proportional to the displacement from the equilibrium position, and is always caused by the restoring force directed towards the equilibrium position. When a single port network containing inductive, capacitive, and resistive elements experiences resonance at certain operating frequencies when the waveform phases of the port voltage and current are the same, it is called circuit resonance. A circuit that can resonate is called a resonant circuit. In an AC circuit with resistor R, inductor L, and capacitor C components, the voltage at both ends of the circuit is generally different in phase from the current in it. If the parameters or power frequency of circuit components (L or C) are adjusted, they can be
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Principle and generation conditions of series resonance
2025-11-13What are the principles and conditions for series resonance? Wuhan UHV specializes in producing series resonance, with a wide range of product selection and professional electrical testing. When looking for series resonance, choose Wuhan UHV. The series resonance withstand voltage test is a new method of high voltage testing that uses the inductance of a reactor and the capacitance of the test object to form an LC series circuit, adjusts the voltage frequency output of the variable frequency power supply, achieves series resonance, and obtains high voltage on the test object. It has been well received by experts and has been widely used at home and abroad. Currently, we have developed many detection instruments using the principle of series resonance, including series resonance test devices, cable variable frequency series resonance test devices, substation variable frequency series resonance test devices, and resonant boost devices for CVT inspection. According to the principle of res
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Characteristics of series resonant circuit and parallel resonant circuit
2025-11-13What are the characteristics of series resonant circuits and parallel resonant circuits? Wuhan UHV specializes in the production of series resonance, with a wide range of product selection and professional electrical testing. To find series resonance, choose Wuhan UHV. Characteristics of series resonant circuit and parallel resonant circuit1、 Parallel resonant circuit: When an external frequency is applied to a parallel resonant circuit, it has the following characteristics:1. When the external frequency is equal to its resonant frequency, its circuit impedance exhibits pure resistance and has a maximum value. This characteristic is called a frequency selective circuit in practical applications. 2. When the external frequency is higher than its resonant frequency, the circuit impedance is capacitive, equivalent to a capacitor. 3. When the external frequency is lower than its resonant frequency, the circuit becomes inductive, equivalent to an inductive coil. So when the serie
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Why is series resonance equivalent to short circuit
2025-11-13Why is series resonance equivalent to short circuit? Wuhan UHV specializes in the production of series resonance, with a wide range of product selection and professional electrical testing. To find series resonance, choose Wuhan UHV. Series resonance, also known as series resonance test device, refers to a circuit in which the voltage U and current I have the same phase, and the circuit exhibits pure resistance. And short circuit refers to the situation where current does not flow through the electrical appliance in the circuit and is directly connected to the two poles of the power supply. In concept, series resonance and short circuit are completely different, so why is series resonance equivalent to short circuit? What is the connection between the two? In a circuit, if the current does not flow through the electrical appliance and is directly connected to the two poles of the power supply, the power supply will be short circuited. According to Ohm's law I=U/R, it is known that
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Digital relay protection tester
2025-11-12Digital relay protection tester? Wuhan UHV specializes in producing microcomputer relay protection testers, with a wide range of product options and professional electrical testing. When looking for a microcomputer relay protection tester, choose Wuhan UHV.Although digital microcomputer relay protection devices have many advantages such as high performance and multifunctionality, they are easily affected by external environmental conditions, which makes them unable to operate normally and lose their basic protection functions. So in order to avoid this situation, manufacturers have researched and taken various effective anti-interference measures during the production of relay protection devices to prevent interference from entering the system, thus avoiding equipment interference.Anti interference measures for microcomputer relay protection1. Hardware anti-interference measures. In the process of developing products, manufacturers take corresponding anti-interference measures for the
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Microcomputer relay protection setting equipment
2025-11-12Microcomputer relay protection setting equipment? Wuhan UHV specializes in producing microcomputer relay protection testers, with a wide range of product options and professional electrical testing. When looking for a microcomputer relay protection tester, choose Wuhan UHV.With the rapid development of the computer and power industries, microcomputer relay protection technology is moving towards artificial intelligence, network sharing, communication data integration, and computer integration. The relay protection device is actually a highly intelligent and multifunctional computer. As the terminal equipment of the power system network, it can transmit data from the network to the control center, and its practicality and intelligence are unparalleled. However, in order for the microcomputer relay protection device to operate normally, corresponding anti-interference measures must be taken to improve its anti-interference ability. This article elaborates on the advantages and anti-inter
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Characteristics of LLC series resonant transformer
2025-11-12What are the characteristics of LLC series resonant transformers? Wuhan UHV specializes in the production of series resonance, with a wide range of product selection and professional electrical testing. To find series resonance, choose Wuhan UHV.The necessity of conducting AC withstand voltage tests on high-voltage electrical equipment and the application of resonance boosting methods in power systems. In order to accurately determine whether electrical equipment meets operating conditions, prevent equipment damage, and ensure safe system operation, one effective measure is to conduct insulation withstand voltage tests on equipment. The insulation withstand voltage test includes two testing methods: DC withstand voltage and AC withstand voltage. The DC withstand voltage test is widely used due to its device's small capacity, small size, light weight, and easy portability. But not all electrical equipment can be explained through DC withstand voltage tests, such as rotor withstand v
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What is the market sales volume of series resonance?
2025-11-11Series resonance (also known as series resonance withstand voltage device) has gradually entered people's field of vision and has been used in the detection of resistance voltage problems in factories. So, what is the sales volume of series resonance in the market now? What is the market sales volume of a product? It still needs to be analyzed from many different aspects.For example, in terms of its usability, if a product has low usability, it is believed that after being chosen by one customer, it will not be chosen by a second or third customer. However, series resonance has been increasingly used now because it can meet the needs of customers for equipment resistance and voltage detection. Moreover, the entire operation is simple and the data is accurate, which increases the value of the entire detection and can maintain the overall production efficiency of the factory. Therefore, many factories will first consider choosing series resonance when they want to detect the resistan
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Will there be data errors in series resonance?
2025-11-11Choosing series resonance is definitely to meet the battery voltage detection effect of the device, and to find a better solution to solve the problem. Therefore, it is necessary to ask whether there will be data errors in series resonance.The reason why buyers have such questions is also because they are worried that when using a series resonant device to test the equipment, if its overall detection effect is not particularly good, there may be corresponding errors that will lead to errors in the entire data analysis, and the selection of solutions to the problem will also bring great trouble, unable to solve the resistance and voltage problems of the equipment. But when people really choose series resonance, they will find that it has a very high level of safety in the measurement process, requires a very convenient way, and has particularly stable performance. These aspects determine that there will be no errors in the measurement of series resonance. If errors really occur, it is a
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Analysis of rlc series resonance
2025-11-11Analysis of RLC series resonance? Wuhan UHV specializes in the production of series resonance, with a wide range of product selection and professional electrical testing. To find series resonance, choose Wuhan UHV.Analysis of the necessity of replacing DC withstand voltage with AC withstand voltageIn recent years, research results from many international and domestic research institutions have shown that DC withstand voltage testing is not suitable for testing cross-linked polyethylene cables. Some cables, even after passing the DC withstand voltage test, still experience insulation breakdown accidents shortly after being put into operation. The impact on insulation during the DC withstand voltage test is mainly manifested in:(1) DC voltage has an accumulation effect on cross-linked polyethylene insulation, known as "memory". Once a cable has "memory" caused by DC testing, the residual DC charges in the cable need a long time to be released. When the cable is put into operation, the DC
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Analysis of Variable Frequency Resonant Withstand Voltage Test
2025-11-10Analysis of Variable Frequency Resonant Withstand Voltage Test ? Wuhan UHV specializes in the production of series resonance, with a wide range of product selection and professional electrical testing. To find series resonance, choose Wuhan UHV.Background and advantages analysis of using frequency conversion resonance withstand voltage test for power cablesCompared with overhead power lines, cable lines have advantages such as concealed laying, less climate interference, less maintenance, and less impact on urban appearance. Their application in urban power grids is becoming increasingly common, and the cable conversion rate has become an important indicator of the technical level of urban power grids. As oil immersed paper insulated power cables gradually exit the historical stage, they are replaced by rubber insulated power cables that are easy to install and have no oil leakage problems. Among them, cross-linked polyethylene (XLPE) power cables have become the mainstream cables due
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Series resonant voltage withstand device
2025-11-10Series resonant voltage withstand device? Wuhan UHV specializes in the production of series resonance, with a wide range of product selection and professional electrical testing. To find series resonance, choose Wuhan UHV.With the innovation and development of power system application technology, cross-linked polyethylene power cables (XLPE) have gradually replaced oil immersed paper insulated cables in many fields and have been widely used. To test the quality of cable laying and installation before operation and the insulation strength of cables after operation, voltage withstand tests should be conducted on cables. The power testing workshop of the control plant is responsible for insulation testing and protection testing of various high-voltage equipment in the substations and distribution stations of various levels of factories and mines in Benxi Iron and Steel. For many years, DC withstand voltage has been used to assess the insulation strength of cross-linked cables. DC withstan
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