• Grounding/earthing TransformerUp to 36kV
Grounding/earthing TransformerUp to 36kV
discuss personally
Model
JDS/36/3000
Basic info
Brand ROCKWILL
Model NO. Grounding/earthing TransformerUp to 36kV
Rated voltage 36kV
Rated normal current 3000A
Rated frequency 50/60Hz
Series JDS
Product Detail

Description

This grounding transformer, suitable for systems up to 36kV, is a specialized electrical device. It creates an artificial neutral point in power grids, playing a crucial role in grounding protection. By effectively handling single - phase ground faults, it ensures the stable operation of medium - voltage power systems, whether in urban distribution networks or industrial power setups.

Feature

  • Voltage Adaptability:Designed for up to 36kV systems, it matches the common voltage levels of medium - voltage power grids, ensuring wide - ranging applicability.

  • Fault Handling:Efficiently suppresses arc - grounding overvoltages during single - phase ground faults. It helps reduce ground fault currents, minimizing damage to power grid equipment and enhancing system reliability.

  • Robust Construction:Built with high - quality materials like premium magnetic cores and durable windings. The enclosure is sturdy, resisting harsh environmental factors such as moisture and dust, ensuring long - term stable performance.

  • Safety Enhancement:Provides a reliable neutral grounding solution, preventing abnormal voltage fluctuations and equipment insulation damage, thus safeguarding the safety of the entire power grid and connected electrical devices.

Main technical parameter

Note: This parameter table is for reference. We can offer customize production tailored to client specifications.

Scope of Application

Suitable for scenarios with varying capacities and voltage levels.

  • 35kV and Above Distribution Networks: Transformer windings typically adopt a star (Y) connection with an accessible neutral point, eliminating the need for grounding transformers.

  • 6kV and 10kV Distribution Networks: Transformer windings mostly use delta (Δ) connections without accessible neutral points, requiring grounding transformers to provide a neutral point.

Special Scenarios: When system unbalanced voltage is high, Z-type transformers can meet measurement requirements through balanced design of their three-phase windings. When system unbalanced voltage is low (e.g., fully cable-based networks), the neutral point of Z-type transformers must generate an unbalanced voltage of 30-70V to satisfy measurement criteria.

Purpose and Function: Provides a return path for fault currents, ensuring safety and stability during ground faults.

Operating Principle During Faults: During a ground fault, fault current flows through the transformer’s neutral point. The counteracting magnetic flux generated by reverse current neutralizes impedance.

Voltage and Current Ratings: Rated voltage matches the system’s line voltage. Capable of withstanding maximum fault currents for up to 30 seconds.

Know your supplier
ROCKWILL
Rockwill Electric Group Global Manufacturer of High voltage and medium-voltage power equipment and smart grid solutions. Headquartered in Wenzhou, China. Serving 100+ countries with quality, innovation, and trust. What We Offer: • HV-MV switchgear (VCB, SF₆ circuit breakers, RMU, GIS) • Distribution transformers and substations • Smart grid and monitoring systems • Solar, wind, EV charging, and energy storage solutions • EPC turnkey power projects Certified: ISO 9001 / ISO 14001 / ISO 45001
Main Categories
High Voltage Electrical Apparatus
Business Type
Design/Manufacture/Sales
Highest Annual Export (USD)
$150,000,000
Professional Experience
16 years
Workplace
108000m²m²
占位
占位
Related Products
Related Knowledges
What is the difference between a dielectric and an insulator?
What is the difference between a dielectric and an insulator?
Dielectrics and insulators are distinguished primarily by their applications. One of the main differences is that a dielectric can store electrical energy by becoming polarized in an electric field, whereas an insulator resists the flow of electrons to prevent current conduction. Other key differences between them are outlined in the comparison chart below.Definition of DielectricA dielectric material is a type of insulator that contains few or no free electrons. When subjected to an electric fi
Edwiin
08/30/2025
Fault Analysis and Treatment of Oil-Immersed Transformers
Fault Analysis and Treatment of Oil-Immersed Transformers
Oil Leakage at Welded JointsOil leakage at welded joints primarily stems from poor welding quality, such as incomplete or detached welds, and defects like pinholes and gas pores. Although oil-immersed transformers are initially coated with solder and paint during manufacturing, potentially masking these issues temporarily, the defects tend to surface during operation. Additionally, electromagnetic vibration can cause weld cracks, leading to oil leakage.To resolve such leaks, the first critical s
Edwiin
08/29/2025
What losses occur during operation of the transformer? How to reduce losses?
What losses occur during operation of the transformer? How to reduce losses?
Transformers experience various types of losses during operation, primarily categorized into two main types: copper losses and iron losses.Copper LossesCopper losses, also known as I²R losses, are caused by the electrical resistance of the transformer windings—typically made of copper. As current flows through the windings, energy is dissipated in the form of heat. These losses are proportional to the square of the load current (I²R), meaning they increase significantly with high
Rockwell
08/29/2025
Cable Fault Detection, Testing, Location and Repair
Cable Fault Detection, Testing, Location and Repair
I. Methods for Cable Testing and Inspection:Insulation Resistance Test: Use an insulation resistance tester to measure the insulation resistance value of the cable. A high insulation resistance value indicates good insulation, while a low value may suggest insulation problems requiring further investigation.Voltage Withstand Test: Apply a high-voltage test using a high-voltage tester to verify whether the cable can withstand high voltage under its rated operating conditions. Under normal circums
Leon
08/29/2025
Cable Quality Inspection and Cable Detection & Testing
Cable Quality Inspection and Cable Detection & Testing
Power cable quality inspection and cable testing are conducted to ensure that the cable's quality and performance meet specified requirements, thereby guaranteeing the safe and stable operation of power systems. Below are some common contents of power cable quality inspection and cable testing:Visual Inspection: Check the cable surface for physical defects such as damage, deformation, or scratches to ensure the cable's exterior is intact.Dimensional Measurement: Measure dimensional parameters su
Edwiin
08/29/2025
Transformer Detection, Testing, Maintenance and Servicing
Transformer Detection, Testing, Maintenance and Servicing
Transformer testing, inspection, and maintenance are essential tasks to ensure normal operation and extend the service life of transformers. Below are some recommended steps:Visual Inspection: Regularly inspect the transformer's exterior, including the enclosure, cooling system, and oil tank. Ensure the enclosure is intact, free from corrosion, damage, or leakage.Insulation Resistance Testing: Use an insulation resistance tester to check the transformer's insulation system. Verify that the insul
Vziman
08/29/2025
×
Inquiry
Download
IEE-Business is dedicated to serving the personnel in the global power industry.
Join IEE-Business, not only can you discover power equipment and power knowledge, but also canhnd like - minded friends!