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AS/NZS 60255.127:2025 Measuring relays and protection equipment Functional requirements for over/under voltage protection (IEC 60255-127:2010 (ED. 1.0) MOD)
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AS/NZS 60255.127:2025 adopts and modifies IEC 60255-127:2010, which specifies minimum requirements for over/under voltage relays. The standard includes specification of the protection function, measurement characteristics and time delay characteristics