标准号:IEC 61558-2-2-2007
中文标准名称:电力变压器、电源、电抗器和类似产品的安全.第2-2部分:控制变压器和与控制变压器组合电源的特殊要求和试验
英文标准名称:Safety of power transformers, power supplies, reactors and similar products - Part 2-2: Particular requirements and tests for control transformers and power supplies incorporationg control transformers
标准类型:K41;K80
发布日期:1999/12/31 12:00:00
实施日期:1999/12/31 12:00:00
中国标准分类号:K41;K80
国际标准分类号:29.180
引用标准:IEC 60076-11
适用范围:Replacement:This part of IEC 61558 deals with safety aspects of control transformers and power supplies incorporating control transformers such as electrical, thermal and mechanical safety.This Part 2-2 is applicable to control transformers and power supplies incorporating both control transformers and electronic circuits. This Part 2-2 is not applicable to external circuits and their components intended to be connected to the input terminals, output terminals or socket-outlets of the transformer and power supplies.This Part 2-2 does not apply to transformers covered by IEC 60076-11.This Part 2-2 applies to stationary or portable, single-phase or poly-phase, air-cooled (natural or forced), independent or associated control transformers and power supplies incorporating a control transformer, having a rated supply voltage not exceeding 1 000 V a.c. and rated supply and internal operating frequency not exceeding 500 Hz.The rated thermal output does not exceed:- 25 kVA for single-phase control transformers and power supplies incorporating control transformers;- 40 kVA for poly-phase control transformers and power supplies incorporating control transformers.This Part 2-2 is applicable to control transformers and power supplies incorporating control transformers without limitation of the rated output subject to an agreement between the purchaser and the manufacturer.This Part 2-2 is applicable to dry-type transformers. The windings may be encapsulated or non-encapsulated.The no-load output voltage or the rated output voltage does not exceed 1 000 V a.c. or 1 415 V ripple-free d.c.For independent control transformers and independent power supplies incorporating control transformers, the no-load output voltage and / or the rated output voltage is not less than 50 V a.c., or 120 V ripple free d.c.
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