High Voltage Test Set

Your Professional High Voltage Test Set Supplier

Our goal is to become your true partner in the field of high voltage test set China. Beijing Huazheng Technology Co., Ltd. is an enterprise with outstanding innovation capabilities in the field of high voltage testing equipment. We have established a comprehensive pre-sales, sales, and after-sales service system to provide customers with comprehensive support and solutions. The factory has accumulated rich manufacturing experience. The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.

Why Choose Us

Customized solutions

We understand that each client's needs are unique, so we can tailor solutions to meet your specific requirements to meet individual client needs.

Quality control

We strictly abide by the international quality management system and strictly control every link from raw material procurement, production process, product quality inspection, etc. to ensure the stability and reliability of our products and services.

Our service
The company has a professional sales team to provide you with high-quality pre-sales consulting services. During the order production process, customers can communicate with us at any time to understand the production progress. At the same time, we provide high-quality after-sales service to meet the different needs of customers.

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Advantages of High Voltage Test Set

To evaluate the insulation performance of the equipment: The high voltage testing help evaluating the strength and quality of electrical insulation used in the equipment. It determines how much electrical stress the insulation can handle without breaking down.

To estimate risk and ensure safety: The high voltage testing is an important process to estimate that how safer the equipment is. It is an important parameter to know for equipment mainly used in public areas.

To verify safety standards: The high voltage testing is also important to ensure that the equipment comply with national and international electrical standards such as IEEE standards, IEC standards, and many other.

To detect manufacturing defects and assure product quality: High voltage testing is performed on very high electric potential. If there is any manufacturing defect or low quality material is used, it will be revealed during this testing that might not be visible under normal operation.

To estimate lifespan of equipment: The extra electrical stress is imposed on the equipment during the high voltage testing. This helps predict the lifespan of the machine or component.

Applications of High Voltage Test Set

Cable Testing & Diagnostics: The generators can be incorporated with field-proven diagnostic test methods to help save companies and utilities significant money, reducing unnecessary outages, and optimizing maintenance planning/budgets.

Cable Fault Location Systems: Although cables used for the distribution of electrical energy are highly developed, there are sometimes malfunctions in the cable system. To keep the consequential damages and costs as low as possible, trained staff and efficient equipment is needed.

Insulating Oil Test Equipment: Oil Diagnostic Systems provided can alert you to losses in the insulating and cooling properties of oil due to impurities and ageing. Consequences to these losses include damage and failures of equipment and systems, even catastrophic failures resulting in transformer fires. The testing of insulating fluids can extend the life of your electrical equipment.

Measurement Systems: It provides accurate and reliable HV measurement systems for test and diagnostic information used to assess the HV insulation of electrical generation, distribution, and transmission apparatus, as well as HV insulating materials and components. Whether it is the measurement and analysis of partial discharge (PD), tan delta / power factor, AC/DC, voltage or current impulse signals, or transformer testing and electrical meter testing, we have affordable quality solutions.

AC/DC Dielectric Test Systems: We specialize in providing High Voltage Test Systems for the generation of AC, DC, and Impulse voltage and current sources to meet your factory, laboratory, and on-site test requirements. Our product innovations and expertise provide your company with a solid return on investment.

Impulse Testing: Impulse testing systems are designed to generate impulse voltages that simulate lightning strikes and switching surges.

Types of High Voltage Test Set

Insulation Testers

These are used to measure the insulation resistance of electrical apparatus, which helps prevent the occurrence of electric shock and equipment damage.

High Voltage Detectors

These devices are utilized to detect the presence of high voltage, ensuring worker safety during maintenance or operation of high voltage equipment.

Transformer Test Systems

These systems help evaluate the performance and durability of transformers, an integral component in power distribution.

Specification of High Voltage Test Set

Model	Rated voltage	Carrying capacity	Power source Safety tube	Product structure and weight
50/1.1	50kV (Peak value)	0.1Hz,≤0.5µF	15A	Controller：4㎏ Voltage booster：40㎏
		0.05Hz,≤1.1µF
		0.02Hz,≤2.2µF
		0.01Hz,≤5.5µF

Use Requirements of High Voltage Test Set

Barriers and signs indicating "Stop High Voltage Danger" should be installed around high voltage test equipment and high voltage leads. Places where barriers are installed should be guarded to prevent outsiders from accidentally entering, and to prevent the occurrence of high voltage in the distance (such as cable tests) Places should also be equipped with barriers and guarded by personnel.

Before the experiment, the person in charge of the experiment should clarify the division of labor for each person participating in the experiment and provide detailed instructions on safety precautions. When disconnecting the equipment from the external connection due to testing needs, markings should be made before disassembly to avoid wiring errors during recovery.

The metal shells of the test equipment and the tested equipment should be grounded; High voltage test leads should be as short as possible: the high voltage circuit should have sufficient safety distance from ground potential objects (grounding bodies) such as barriers, equipment shells, and walls to prevent discharge.

Tests That Can Be Performed with a High Voltage Test Set

Megohm Bridge

The megohm bridge measures the opposition to the flow of an electric current—or high resistance. The higher this resistance is, the better and more effective the insulator.

Capacitance Bridge

This test is used to measure a capacitor’s unknown capacitance, or ability to store an electric charge. The higher this value is, the better the insulator, as they produce a layer of opposite charge, increasing capacitance.

Dissipation Factor Testing

This test uses electricity to define and determine the overall condition of the insulation material. Many times, the dissipation factor is used to determine the quality of insulation.

Other Service of High Voltage Test Set

Transport Package	Wooden Box with Foam Inside
Storage condition	Temperature: -10℃～40℃, Humidity: Less than 90%
Transportation	Land, air, sea

FAQ

Q: What are the tests for high voltage?

A: A high voltage is used to verify that the clearances and solid insulation of components have adequate dielectric strength to resist expected overvoltage conditions. It also shows that the equipment is able to work safely over its complete lifetime.

Q: What instrument is used to measure high voltage?

A: Voltmeter or digital multimeter is used to measure Voltage. Digital multimeter is hand held instrument. You can measure Voltage with that.

Q: What is the standard for high voltage testing?

A: Standard methods and basic techniques for high-voltage testing applicable to all types of apparatus for alternating voltages, direct voltages, lightning impulse voltages, switching impulse voltages, and impulse currents are established in this standard.

Q: What is the formula for high voltage test?

A: A general rule of thumb for establishing the hipot test voltage is two times the working voltage + 1000 V. For a working voltage of 220 V, the rule of thumb test voltage is (2 × 220 + 1000) = 1440 V. Therefore, 1500 V is a common hipot test voltage.

Q: How many volts is considered high voltage?

A: The International Electrotechnical Commission and its national counterparts (IET, IEEE, VDE, etc.) define high voltage as above 1000 V for alternating current, and at least 1500 V for direct current.

Q: What is the instrument used to measure high voltage?

A: A potential transformer (P.T.) is an instrument transformer that is used for the measurement of high alternating voltage in a power system by stepping it down towards the secondary side.

Q: What is the maximum voltage a standard voltmeter can measure?

A: A voltmeter measures the difference in electric potential (voltage) across a circuit element. The batteries in a flashlight are DC voltage sources. The scale settings range from 200 mV (millivolts) to 1000 V (volts).

Q: How is high voltage measured?

A: Direct measurement of high voltages is possible up to about 200 kV, and several forms of voltmeters have been devised which can be connected directly across the test circuit.

We're professional high voltage test set manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to buy high voltage test set for sale here from our factory. For price consultation, contact us.

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