HV Switchgear & Isolator FAQs

Frequently asked questions

What is the difference between AIS and GIS?

AIS uses air as insulation and needs more space at lower cost; GIS is insulated with SF6 gas, is compact and suits space-constrained or indoor substations at higher cost.

Why is CPRI testing important for switchgear?

CPRI type-testing independently verifies that equipment meets its rated performance, which utilities and discoms typically require before acceptance.

Are ENSOL's power products made to utility specifications?

Yes — power products and support structures are made to CPRI-tested requirements and utility/discom specifications.

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