What is the Insulation accident under the overvoltage of the transformer?

Transformer undertakes the important task of voltage transformation and energy transmission in the power system. However, under the condition of overvoltage, the transformer may encounter various insulation accidents, which will seriously threaten its safe operation. The following are the main types of insulation accidents:

コンテンツ

1. Wrap insulation breakdown

Under the action of overvoltage, the main insulation and turn insulation of the transformer winding may be seriously tested. The high voltage may lead to the instantaneous breakdown of the insulation layer, forming a short circuit channel inside the winding, and then causing the winding burning accident.

2. The sleeve flash

As the connecting part of the transformer and the external circuit, the insulation performance of the casing is crucial. Under overvoltage conditions, the insulation outside the casing may be discharged along the surface or air gap breakdown, leading to flashover accident and affecting the normal operation of the transformer.

3. Splter switch arc discharge

The tap switch plays a key role in regulating the transformer output voltage. However, the overvoltage may cause the arc discharge inside the tap switch, leading to the contact ablation, oil quality deterioration, and even cause the switch explosion and other serious consequences.

4. The iron heart discharges to the ground

Core is the core component of transformer, and its insulation performance is crucial to the overall safety of transformer. In the case of overvoltage, the insulation between the core and the ground may be damaged, and the ground discharge phenomenon occurs, and then cause the core overheating, damage and other accidents.

概要

To sum up, the transformer may face various insulation accidents such as winding insulation breakdown, casing flashover, tap switch arc discharge and core discharge under overvoltage. In order to ensure the safe and reliable operation of the transformer, effective overvoltage protection measures should be taken, and regular insulation performance detection and maintenance.

連絡先

廬山,est。 1975年には中国の専門職の専門メーカーの電力変圧器及び原子炉のための50+る。 主製品 単相トランス、三相絶縁変圧器、電気トランス、物流トランス、ステップの下、信用リスク以外のリスクにつきトランス、低電圧トランス、高電圧トランス、制御トランス、トロイダルトランス、Rコアトランス直流インダクター、AC炉では、フィルタリング炉、負荷炉chokes、フィルタリングの原子炉は、中間体、高周波製品.

当社の電力変圧器及び原子炉に広く使用されて10アプリケーション:高速鉄道、建設機械、再生可能エネルギー、ロボット、医療機器、炭鉱爆発の防止、励起システム、真空焼結(炉)、中央エアコンがあります。

知電源トランス原子炉: www.lstransformer.com.

希得のカスタマイズソリューションのためのトランスや原子炉、お問い合わせください。
WhatsApp：+86 13787095096
メール:marketing@hnlsdz.com