3.6KV 7.2KV 12KV 24KV 40.5KV Epoxy Resin Casting Voltage Transformer
Key attributes
| Brand | Wone |
| Model NO. | Epoxy Resin Casting Voltage Transformer |
| Rated voltage | 40.5kV |
| Rated frequency | 50（Hz） |
| Series | JDZW |
Product descriptions from the supplier
Product Description
Transformer is also known as the utility Transformer, is the current Transformer and voltage transformer collectively. Can turn high voltage into low voltage, large current into small current, used to measure or protect the system. Its main function is to convert high or large current into standard low voltage(100V) or standard small current(5A or 1A) in proportion so as to standardize and miniaturize measuring instruments, protective equipment and automatic control equipment. At the same time, the transformer can also be used to separate the high voltage system to ensure the safety of the person and equipment.
In power lines, the current difference from a few to a few thousand, voltage difference from several volts to several million volts. The current voltage in the line is high, so it is very dangerous to measure directly. To facilitate the conversion of the secondary instrument to a uniform current voltage, the Transformer is used to change current pressure and isolate electricity.
Basic Info.
Packaging & Delivery
Overall dimension drawing
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On-time delivery rate
Response time
100.0%
≤4h
Company overview
Workplace: 65666m²m²
Total staff: 300+
Highest Annual Export(usD): 50000000
Services
Business Type: Design/Manufacture/Sales
Main Categories: Wire cable/High Voltage Electrical Apparatus/Low Voltage Electrical Apparatus/Instrument meters/New energy/Tester/Integrated Electrical Equipment/Production equipment/Generator/Electrical fittings
Whole life care manager
Whole-life care management services for equipment procurement, use, maintenance, and after-sales, ensuring safe operation of electrical equipment, continuous control, and worry-free electricity consumption.
The equipment supplier has passed platform qualification certification and technical evaluation, ensuring compliance, professionalism, and reliability from the source.
Related Knowledges
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Faults and Handling of Single-phase Grounding in 10kV Distribution LinesCharacteristics and Detection Devices for Single-Phase Ground Faults1. Characteristics of Single-Phase Ground FaultsCentral Alarm Signals:The warning bell rings, and the indicator lamp labeled “Ground Fault on [X] kV Bus Section [Y]” illuminates. In systems with a Petersen coil (arc suppression coil) grounding the neutral point, the “Petersen Coil Operated” indicator also lights up.Insulation Monitoring Voltmeter Indications:The voltage of the faulted phase decreases (in01/30/2026 -
Neutral point grounding operation mode for 110kV～220kV power grid transformersThe arrangement of neutral point grounding operation modes for 110kV～220kV power grid transformers shall meet the insulation withstand requirements of transformer neutral points, and shall also strive to keep the zero-sequence impedance of substations basically unchanged, while ensuring that the zero-sequence comprehensive impedance at any short-circuit point in the system does not exceed three times the positive-sequence comprehensive impedance.For 220kV and 110kV transformers in new constructi01/29/2026 -
Why Do Substations Use Stones, Gravel, Pebbles, and Crushed Rock?Why Do Substations Use Stones, Gravel, Pebbles, and Crushed Rock?In substations, equipment such as power and distribution transformers, transmission lines, voltage transformers, current transformers, and disconnect switches all require grounding. Beyond grounding, we will now explore in depth why gravel and crushed stone are commonly used in substations. Though they appear ordinary, these stones play a critical safety and functional role.In substation grounding design—especially when multiple gr01/29/2026 -
Why Must a Transformer Core Be Grounded at Only One Point? Isn't Multi-Point Grounding More Reliable?Why Does the Transformer Core Need to Be Grounded?During operation, the transformer core, along with the metal structures, parts, and components that fix the core and windings, are all situated in a strong electric field. Under the influence of this electric field, they acquire a relatively high potential with respect to ground. If the core is not grounded, a potential difference will exist between the core and the grounded clamping structures and tank, which may lead to intermittent discharge.I01/29/2026 -
Understanding Transformer Neutral GroundingI. What is a Neutral Point?In transformers and generators, the neutral point is a specific point in the winding where the absolute voltage between this point and each external terminal is equal. In the diagram below, pointOrepresents the neutral point.II. Why Does the Neutral Point Need Grounding?The electrical connection method between the neutral point and earth in a three-phase AC power system is called theneutral grounding method. This grounding method directly affects:The safety, reliabilit01/29/2026 -
What’s the Difference Between Rectifier Transformers and Power Transformers?What is a Rectifier Transformer?"Power conversion" is a general term encompassing rectification, inversion, and frequency conversion, with rectification being the most widely used among them. Rectifier equipment converts input AC power into DC output through rectification and filtering. A rectifier transformer serves as the power supply transformer for such rectifier equipment. In industrial applications, most DC power supplies are obtained by combining a rectifier transformer with rectifier equ01/29/2026
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