iec 60076-10 power transformers - determination of sound levels
iec 60076-10 power transformers - determination of sound levels
... Group at 1-8 0 0-4 5 1-1 584. || |||| | | || ||||| | | |||| || | ||| |||| || | ||| 6007 6-1 0 IEC: 2001(E) – 7 – POWER TRANSFORMERS – Part 10: Determination of sound levels 1 Scope This part of IEC 60076 ... Group at 1-8 0 0-4 5 1-1 584. || |||| | | || ||||| | | |||| || | ||| |||| || | ||| INTERNATIONAL STANDARD IEC 6007 6-1 0 First edition 200 1-0...
Ngày tải lên: 25/12/2013, 10:36
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
... winding.) This circuit was selected for three-phase transformers with both three- and five-limb cores to perform simultaneously testing of the phase-to-earth and phase-to-phase insulation with 1,0 p.u. (per ... evaluation of non-standard waveshapes. In particular, when testing high -power- rated low-voltage windings with resulting unipolar overshoots with frequencies less than 0,5 MHz,...
Ngày tải lên: 25/12/2013, 10:35
iec 60076-8 power transformers - application guide
... range of the transformer. The problem of how to convert a time-variable load to an equivalent continuous load is treated in IEC 60354 for oil-immersed transformers and in IEC 60905 for dry-type transformers. The ... temperature. Warnings are given in 10.4 of IEC 6007 6-1 . The series impedance of the transformer is mainly inductive. The power factor of the impedance te...
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
Báo cáo y học: " Laugh Yourself into a Healthier Person: A Cross Cultural Analysis of the Effects of Varying Levels of Laughter on Health"
... zainabhasan52@hotmail.com. Phone: +9 1-2 4 0-2 3 4-8 673/ +9 1-9 8 2-3 9 0-5 866/ + 1-9 0 5-8 2 6-3 752. Received: 2009.05.01; Accepted: 2009.07.17; Published: 2009.07.28 Abstract This cross-cultural study explored along ... inti- mately associated with the structural definition of health proposed by a phenomenological study of health consisting of four-hundred pa...
Ngày tải lên: 26/10/2012, 09:57
DETERMINATION OF THE DIGESTIBILITY OF SOME PLANT INGREDIENTS FOR GRASS CARP (Ctenopharyngodon idella)
... ADC of dry matter, nutrients in the tested ingredient were calculated according to the following formulae: ADC of DM of test ingredient (%) = (ADC of DM of the test diet - 0.7 x ADC of DM of ... according to the following formulae: ADC of DM of diet (%) = 100 x [1 - (dietary Cr 2 O 3 /fecal Cr 2 O 3 )] ADC of nutrients of diet (%) = 100 x [1 - (dietar...
Ngày tải lên: 28/08/2013, 09:14
Determination of EDTA in Water Samples by SPE-Gas Chromatography/Mass Spectrometry
... *Division of Environmental Chemistry, National Institute of Health Sciences, Kamiyoga 1-1 8-1 , Setagaya-ku, Tokyo 15 8-8 501, Japan ABSTRACT Japan’s recommended method of EDTA determination ... efficiency, solid-phase extraction was performed as described below. Journal of Water and Environment Technology, Vol. 8, No.4, 2010 - 350 - Table 1 - Recovery...
Ngày tải lên: 05/09/2013, 10:15
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