पावर सबस्टेशनों (substations) के संबंध में निम्नलिखित कथनों के सत्यता मूल्य का निर्धारण करें: 1. एक इनडोर (indoor) सबस्टेशन एक आउटडोर (outdoor) सबस्टेशन की तुलना में कम खर्चीला होता है। 2. इनडोर सबस्टेशन की तुलना में आउटडोर सबस्टेशन में खराबी (fault) का पता लगाना आसान होता है।

Which of the following statements is/are correct regarding station batteries in a power substation? I. Station batteries serve as a critical backup source for operating DC control systems during system disturbances and power outages. II. In a standard 33/11 kV substation, the DC backup system typically comprises a nominal 110 V or 220 V bank configuration, rather than just 15 lead-acid batteries.

An electrical substation includes which of the following auxiliary, electrical, and mechanical systems? I. Fire-fighting equipment for transformers and substation assets. II. Standby emergency generating sets.