Transformer para Grounding/Earthing Hanggang 36kV

Deskripsyon

Ang grounding transformer nga kini, angay para sa mga sistema hangtod sa 36kV, usa ka espesyalisadong elektrikal nga device. Iya ni pagbuhat og artificial nga neutral point sa mga power grid, nagpuno og importante nga papel sa grounding protection. Pinaagi sa efektibong pag-handle sa single-phase ground faults, iya ni sigurado nga stable ang operasyon sa medium-voltage power systems, sama sa urban distribution networks o industrial power setups.

Pangutana

• Voltage Adaptability：Gidisenyo para sa hangtod sa 36kV nga mga sistema, iya ni match sa common nga voltage levels sa medium-voltage power grids, nagsiguro sa wide-ranging applicability.

• Fault Handling：Efektibo nga nag-suppress sa arc-grounding overvoltages samtang may single-phase ground faults. Iya ni tabangan sa pag-reduce sa ground fault currents, minimiza ang damage sa power grid equipment ug naaumento ang system reliability.

• Robust Construction：Gigamit ang high-quality nga materials sama sa premium magnetic cores ug durable windings. Ang enclosure mao ang sturdy, resisti sa harsh nga environmental factors sama sa moisture ug dust, nagsiguro sa long-term stable performance.

• Safety Enhancement：Naghatag og reliable nga neutral grounding solution, nagprevention sa abnormal nga voltage fluctuations ug equipment insulation damage, thus nagsiguro sa safety sa entire power grid ug 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.