Zig Zag Grounding Transformers up to 46kV

Its core feature lies in the zig-zag (Z-type) winding connection. This structure can effectively generate a stable artificial neutral point for ungrounded power systems, with low zero-sequence impedance, which is conducive to limiting ground fault current and suppressing transient overvoltage.

Q:What are the applicable scenarios of Zig Zag Grounding Transformers?

A:It is widely used in medium and high voltage power systems (such as 10kV, 35kV, 46kV) that require reliable neutral grounding, such as industrial parks, power distribution substations, wind farms, and photovoltaic power stations. It is especially suitable for systems with strict requirements on fault current limitation and voltage stability.

Q:What advantages do Zig Zag Grounding Transformers have in ground fault protection?

A:Firstly, its low zero-sequence impedance can quickly limit the ground fault current to a safe range, avoiding equipment damage; secondly, it can maintain stable system voltage during faults, reducing transient overvoltage hazards; in addition, it has a simple structure and high reliability, and can cooperate with arc suppression coils and other devices to improve the overall protection effect.

Q:Can Zig Zag Grounding Transformers be customized for special power system requirements?

A:Yes. Manufacturers can customize parameters such as rated voltage, rated capacity, zero-sequence impedance, and winding material (copper or aluminum) according to the actual needs of the power system. It can also be integrated with neutral grounding resistors (NGR) to meet personalized fault current control requirements.