iec 60726 dry type power transmformers
iec 60726 dry type power transmformers
... 21:36:20 1999 Copyright by the International Electrotechnical Commission Fri Jan 15 21:36:20 1999 60726 Copyright by the International Electrotechnical Commission Fri Jan 15 21:36:21 1999 Copyright
Ngày tải lên: 04/04/2014, 16:00
A kinetic study of resorcinol-enhanced hydroxyl radical generation during ozonation with a power law type equation
... kinetic study of resorcinol-enhanced hydroxyl radical generation during ozonation with a power law type equation Youn-Hee Han*, Yoshinobu Ishibashi*, Kazuhiro Ichikawa** and Hideo Utsumi** ... (10 -6 M)] 2.40 + (3.09 × 10 -5 ) × [ozone (10 -6 M)] 1.72 . In this study, we used the power law type equation obtained from previous study in order to evaluate the enhancing eff...
Ngày tải lên: 05/09/2013, 09:38
iec 60076-3 power transformers - insulation levels, dielectric tests and external clearances in a
Ngày tải lên: 25/12/2013, 10:34
iec 60076-4 power transformers - guide to the lightning impulse and switching impulse testing
... |||| || | ||| |||| | | | | 60076-4 IEC: 2002 – 103 – IEC 1441/02 Figure B.12a –Reduced full wave (50 %) IEC 1442/02 Figure B.12b – Reduced full wave (75 %) IEC 1443/02 Figure B.12c – Full wave ... CEI:2002 (1) (2) IEC 1444/02 Figure B.13a – Pleine onde réduite (62,5 %) (1) (2) IEC 1445/02 IEC 1446/02 Figure B.13b – Première pleine onde (100 %) Figure B.13c – Deuxième pleine on...
Ngày tải lên: 25/12/2013, 10:35
iec 60076-8 power transformers - application guide
... 60076-8 IEC: 1997 – 141 – 8.4.5 Rated current and rated power Before proceeding, it should be noted that rated current and rated power are defined as continuous duty. The continuous duty rated power ... load is treated in IEC 60354 for oil-immersed transformers and in IEC 60905 for dry- type transformers. The required continuous load power represents a specific value of lo...
Ngày tải lên: 25/12/2013, 10:36
iec 60076-10 power transformers - determination of sound levels
... Members of IEC and ISO maintain registers of currently valid International standards. IEC 60076 (all parts), Power transformers IEC 60289:1988, Reactors IEC 60651:1979, Sound level meters IEC 60726: 1982, ... reactor". The methods are applicable to transformers and reactors covered by the IEC 60076 series, IEC 60289, IEC 60726 and the IEC 61378 series, without limi...
Ngày tải lên: 25/12/2013, 10:36
iec 60092-352 choice & installation of cables for low voltage power systems
Ngày tải lên: 25/12/2013, 10:38
iec 60079-15 electrical apparatus for explosive gas atmospheres - construction, test and marking of type of protection n electrical apparatus
... Requirements for type 3 secondary batteries 22.5.1 Types of permissible batteries Type 3 secondary batteries shall be of the lead-acid, nickel-iron, nickel-metal hydrides or nickel-cadmium type. The ... 22.5 Exigences pour batteries d'accumulateurs de type 3 22.5.1 Types de batteries acceptables Ces batteries d'accumulateurs de type 3 doivent être au plomb, nickel-fer,...
Ngày tải lên: 25/12/2013, 10:42