DAHU electrical specializes in the production of 0.5-40.5kv transformers. It has cooperated with many national power bureaus for 10 years and exported to foreign markets. If there is any quality problem within the warranty period, it can be replaced free of charge.
Outdoor fully enclosed dry epoxy resin pole mounted voltage transformers are a type of electrical equipment suitable for outdoor environments, they usually have the following characteristics:
Resistant to environmental influences: These voltage transformers are able to withstand harsh outdoor climatic conditions such as ultraviolet radiation, humidity and temperature changes because they are cast in fully enclosed epoxy resin, which is resistant to arcing, ultraviolet rays and aging.
The product is characterized by arc resistance, UV resistance, and aging resistance.
Structural characteristics: outdoor fully enclosed dry epoxy resin pole mounted voltage transformers are usually of pillar type construction, which makes them small in size and light in weight, and easy to be installed in any position and in any direction.
The design makes them small in size and light in weight, easy to install in any position and in any direction.
Insulation performance: the use of epoxy resin as an insulating material provides good insulation performance, at the same time, the high and low voltage coils are wound with non-oxidized copper foil, F-class insulating material is used between the layers of the coil winding, the inside and outside of the glass mesh board reinforcement, all the leads are argon arc welded and cast with epoxy resin under high vacuum to ensure the insulation performance of the product.
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Scope of application: Suitable for AC 50Hz or 60Hz, rated voltage of 35kV and below in the power system, for power measurement, voltage monitoring and relay protection.
Technical Parameters: High rated insulation level.
Technical parameters: high rated insulation level, such as 40.5/80/185kV; load power factor COSφ = 0.8 (lagging); surface creepage distance to meet the requirements of class II filth level.
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Product standards: in line with GB national standards and IEC international standards, and can be customized production.
Customized production is also available.
Installation and use: due to the fully closed cast insulation, small size, light weight, suitable for any position, any direction of installation. The terminal box can be installed at the secondary outlet terminal, and the three different directions of the terminal box can lead out the secondary line, which is convenient for wiring and can realize the anti-electricity theft measures.
Special materials: some products use imported outdoor materials.
Special materials: some products use imported outdoor epoxy resin casting insulation fully enclosed, such as Switzerland Ciba CW5837, providing strong resistance to climate change and other advantages.
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These voltage transformers are widely used in outdoor power systems, especially in rural outdoor substations, industries, small businesses, and power distribution offices, due to their excellent outdoor resistance and fully enclosed construction
The voltage transformers are widely used in outdoor power systems, especially in rural outdoor substations, industries, small businesses and distribution houses.
A high-frequency voltage transformer is a device designed to measure and monitor high-frequency voltages, which are capable of converting high voltages to low voltages for use in measuring instruments, relay protection and other similar appliances. Here is some key information about high frequency voltage transformers:
Principle of operation:
High-frequency voltage transformers utilize the principle of electromagnetic induction to achieve voltage conversion by winding two windings with different number of turns and mutual insulation on a closed iron core. The primary winding is connected to the power supply side, and the secondary winding is on the output side. When a voltage is added to the primary winding, an alternating magnetic flux with the same frequency as the power supply is generated in the iron core, and according to the law of electromagnetic induction, an induced electromotive force with the same frequency but a different value is generated in the secondary winding
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Type:
High-Frequency Electronic Voltage Transformer (High-Frequency Electronic Voltage Transformer) is a new type of transformer, which adopts electronic technology and sensor technology, and through special design and construction, it is able to convert high-frequency voltage into low-frequency signals and provide accurate voltage measurement results
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Features:
High-frequency electronic voltage transformers are characterized by high accuracy measurement, wide frequency band operation, compact size and fast response speed. They are capable of voltage measurement in a wide range of frequencies, adapting to high-frequency voltage signals of different frequencies
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Application Scenario:
High-frequency voltage transformers are widely used in power systems, industrial control, communication equipment and other fields, providing a reliable solution for electrical measurement and protection. They can be used for real-time measurement and monitoring of high-frequency voltage signals, power system protection and control, etc.
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Technical Advantage:
Compared with traditional power transformers, high frequency electronic voltage transformers have a wider range of applications and higher accuracy requirements. They can realize higher resolution and smaller measurement error.
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Voltage conversion:
High-frequency voltage transformers can convert high-voltage electrical energy through the electromagnetic coupling between the coils, and utilize the change in the number of turns of the windings between the primary and secondary to change the ratio of the voltage between the primary and secondary, thus realizing the conversion of high voltage to low voltage
The primary and secondary winding turns change the voltage ratio between the primary and secondary, thus realizing the conversion from high voltage to low voltage.
In summary, high-frequency voltage transformers are indispensable equipment in the power system, they convert high voltage to low voltage through the principle of electromagnetic induction to ensure the stable operation of the power system and safety protection.
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Outdoor fully enclosed dry epoxy resin pole mounted voltage transformers are a type of electrical equipment suitable for outdoor environments, they usually have the following characteristics:
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