继电保护的ANSI代码 The ANSI Standard Device Numbers[1] [2] [3] denote what features a protective device supports (such as a relay or circuit breaker). These types of devices protect electrical systems and components from damage when an unwanted event occurs, such as an electrical fault.[edit...
J ! S% r : e 99 - For specific applications where other numbers are not suitable Note 1: A suffix letter may be used with the device number; for example, suffix N is used if the device is connected to a Neutral wire (example: 59N in Siemens Relay is used for protection against ...
Protection functions Table .-1 IEC symbols and IEEE device numbers Function description IEC symbol IEEE Device No. Three-phase thermal overload θ> 49M protection Motor start-up supervision Is2ts 48/14 based on thermal stress calculation Three-phase definite-time Is> 51/14 overcurrent protection...
ANSIC12.1-2008 国外国际规范.pdf,ANSI C12.1-2008 American National Standard for Electric Meters Code for Electricity Metering ANSI C12.1-2008 American National Standard for Electric Meters Code for Electricity Metering Secretariat: National Electrical Man
United States of America Approved Adopted for Mandatory Use October 31, 1975 Canadian Standards Association Approved October 9, 1975 American National Standards Institute Reaffirmed January 16, 1989 Approved October 31, 1975 IEEE Standards Board Reaffirmed December 2, 1993 Reaffirmed October 20, 1988 ...
The manual covers procedures for mechanical and electrical installation, energizing and checking of external circuitry, setting and configuration as well as verifying settings and performing directional tests. The chapters are organized in the chronological order (indicated by chapter/section numbers) in ...
ANSI C37.85-2002电力开关用交流高压电力真空断路器的X射线辐射极限Interrupters Used in Power Switchgear, X-Radiation Limits for AC High-Voltage Power Vacuum ANSI C57.12.51-1981三相,高压601至34500伏,低压208Y/120至4160伏容量不小于501千伏安,通风干式电力变压器的要求Dry-Type Power Transformers 501 kVA...
TheANSIStandardDeviceNumbers[1][2][3]denotewhatfeaturesaprotectivedevicesupports (suchasarelayorcircuitbreaker).Thesetypesofdevicesprotectelectricalsystemsand componentsfromdamagewhenanunwantedeventoccurs,suchasanelectricalfault. $A(e3A5N.t&B3j'~ [edit]ListofDeviceNumbers 1-MasterElement 2-TimeDelayStarting...
IEEE Standard for Electrical Power System Device Function Numbers, Acronyms, and Contact Designations; IEEE: New York, NY, USA, 2008. 13. Bollen, M.; Häger, M. Power Quality: Interactions between Distributed Energy Resources, the Grid and Other Costumers; Stri AB: Ludvika, Sweden, 2005....