News

How Zhejiang SanGao's Electrical Equipment Carried the Mission of Power Supply at the Launch Site

Twenty years later, this "Product Usage Feedback" with its red seal has long since yellowed, but the message at its conclusion remains resonant: "Adhere to promises, prioritize quality, and build a shield for the nation."

Why Is Zinc Oxide Lightning Arrester a Key Device for Protecting Power Distribution Systems?

Zinc Oxide Lightning Arrester, launched by our factory, is a protection solution tailored for these high-risk scenarios. It can not only effectively limit instantaneous overvoltage, but also has triple protection functions of overcurrent, overvoltage and undervoltage.

Lightning Arrester, The "Thunderstorm Bodyguard" That Protects the Lights of Thousands of Homes, Is in Action!

The small Lightning Arrester is connected to the overall security of the power grid on one end, and guards the light of thousands of households on the other end.

Why Can Drop-Out Fuse Play a Key Protective Role in Power Systems?

Drop-Out Fuse is usually installed on overhead power lines or transformer branches. It can quickly fuse when abnormal current occurs, effectively isolate the fault area, and protect the back-end equipment from damage.

Why Is the Isolation Switch Called a Life-Saving Artifact for Power Grid Safety?

How to open and close an indoor load switch

‌Check the status‌: Before closing, you need to check the power supply, line status and load status to ensure that everything is normal.Pull the closing lever‌: Pull the closing lever to the closing position.