normative determination of short circuit power factor

... values of stress intensity factor (KI) increased with the increase in crack size The path of crack propagation in case of root crack is longer than that in cases of toe and cold-lab cracks Values of ... lack of penetration are frequently encountered defects Toe cracks occur because of the stress concentration in the weld toe region, while lack of penetration defects result from inaccessibility of ... for one of the models under analysis (model 5) at final crack propagation 6.1.3 Calculation of the Stress Intensity Factors When a propagating crack is considered, the stress intensity factors...

Ngày tải lên: 24/05/2014, 20:40

... respectively Results were dichotomized on the basis of being above or below the limit of quantification of the ELISA (cut-off anti-MCV 40 U/ml, cut-off RF-IgG 30 U/ml) for RF-IgG (Table 2) The positive ... results led to an overall sensitivity of 69.3% for detection of anti MCV antibodies and of 55.6% for RF-IgG as well as to a specificity of 99.7% for MCV and of 97.2% for RFIgG Overall, correlation ... anti-human IgG During development of the assay, the amount of goldconjugated anti-human IgG, the number of conjugated colloidal gold particles, and the amount of anti-human IgG were empirically...

Ngày tải lên: 12/08/2014, 14:22

... direct axis Sk short- circuit apparent power Ik short- circuit current ip peak current Zk short- circuit impedance Xk short- circuit reactance Rk short- circuit resistance Z… impedance of a generic ... examples of short- circuit calculation 31 Annex B Example of calculation of the short- circuit current Transformers TR1-TR2 V1n = 20 kV The study of the short- circuit currents is one of the classic ... the type of material (for copper it is 3.95x10-3) Calculation of the short- circuit current Determination of the short- circuit resistance and reactance values of the main elements of a circuit...

Ngày tải lên: 01/11/2015, 08:43

... LWA2 is the sound power level of the transformer NOTE If the sound power levels of the individual fans and pumps of the cooling auxiliaries are known, the total sound power level of the cooling ... measurement of sound intensity – Measurement with pairs of pressure sensing microphones IEC 61378 (all parts), Convertor transformers ISO 3746:1995, Acoustics – Determination of sound power levels of ... IEC:2001(E) –7– POWER TRANSFORMERS – Part 10: Determination of sound levels Scope This part of IEC 60076 defines sound pressure and sound intensity measurement methods by which sound power levels of transformers,...

Ngày tải lên: 25/12/2013, 10:36

... affinity of the factors for a series of oligonucleotides containing an increasing number of the binding motif Immediately following the addition of the different oligonucleotides, the factor recognizes ... and amplification of sequences that bind HSF2 Sel0 (450 ng in 90 lL of binding solution) was mixed with 30 mL of pooled elution fractions of purified embryonic HSF2 ( ng) and mg of BSA The reaction ... a volume of 50 lL in water A 5-lL sample was added to a PCR mixture together with 75 pmol of primer P1, 75 pmol of primer P2 and 2.5 U of Tfl DNA polymerase (Promega) in a final volume of 100 lL...

Ngày tải lên: 24/03/2014, 00:21

... lagging power factor of 0.8, will have a kW output of 0.8 per unit and a kVAr output of 0.6 per unit Operating the same machine at unity power factor will result in a machine KW output of 1.0 ... Benefits of Operating Your Generator at a Higher Power Factor of Ø http://www.nepsi.com/generator.htm Reduced Electric Utility Bill due to lower amount of purchased power from power provider ... outputs of the synchronous generator will either reduce the amount of power purchased from your electric power provider or it will increase the revenue obtained for power that is sold to the power...

Ngày tải lên: 12/08/2014, 12:51

... angles: Calculation of short- circuit currents Interruption of short- circuit currents and rating structure of switching devices Effects of short- circuit currents Limitation of short- circuit currents, ... Generators Short- Circuit Current of a Rectifier Short- Circuit of a Charged Capacitor Total Short- Circuit Current DC Circuit Breakers Load Flow Over Power Transmission Lines 10.1 Power in AC Circuits ... section of the power system is isolated We will confine our discussions to the calculations of short- circuit currents, and the basis of short- circuit ratings of switching devices, i.e., power circuit...

Ngày tải lên: 21/08/2014, 12:41

... value of Factor i Wik : Weight or factor score coefficient Xk:: variable k k: Number of variable There are two common techniques used to extract factors in EFA, principal 43 Determination of Factors ... given to the brand are often an outcome of inferences that are made about the users or usage of the brand or a combination of both (Plummer, 1985) 17 Determination of Factors Affecting Brand ... for a fixed number or the increase of the 21 Determination of Factors Affecting Brand in Marketing – Huynh Van Binh number of products with the same amount of money (Blattberg, Briesh and Fox,...

Ngày tải lên: 24/09/2015, 16:19

... difficult to determine the exact role of each factor and their individual contribution to the aetiology of vertebral fracture The size of a vertebral body, often measured using computed tomography ... of the complex aetiology of these fractures Therefore, the aim of this review is to highlight factors identified in the literature that may act to influence the risk of sustaining an osteoporotic ... design of the trabecular network allows for the efficient distribution of compressive and shear forces This efficiency exists via the orientation and spacing of the three dimensional arrangement of...

Ngày tải lên: 03/11/2012, 09:49

... 4.5.2 Models Using Power at the Input as the Limited Power 192 4.5.3 Models Using Power Available at the Output as the Limited Power 192 4.5.4 Effect of Source Impedance on Noise Factor 194 4.6 Noise ... extension of the course material provided to delegates on advanced one-week intensive courses offered to industry by the University of York These are offered either as a single course or as part of ... short circuit on the output What does it ignore? The effects of the load impedance and in particular the Miller effect (It does include the effect of the feedback capacitor but only into a short circuit...

Ngày tải lên: 08/04/2013, 10:50

... Timber Factory has been the major provider of wooden product in the North area of Vietnam with the market-share of 40% Water resistance plywood for construction is the main product of Cau Duong factory, ... the way of developing, and to enlarge activities of a firm With the purpose of providing connected information to the company, market research consists of determination the position of a firm ... main opponents of Cau Duong factory, consisting of private economic sectors and some State-owned companies such as Tan Mai factory, Dong Nai timber factory, Dong Ha hardboard factory, etc 31...

Ngày tải lên: 07/08/2013, 11:04

... ADC of DM of test ingredient (%) = (ADC of DM of the test diet - 0.7 x ADC of DM of the reference diet)/0.3 ADC of nutrient of test ingredient (%) = [(nutrient in test diet x nutrient ADC of the ... method The determination of chromium III (trivalent) that involves digestion of organic matter, solubilisation of chromium and determination of chromium was Table Chemical compositions of studied ... means of three replicates with standard error (SE) 989 Determination of the digestibility of some plant ingredients for grass carp (Ctenopharyngodon idella) Table The digestibility of protein of...

Ngày tải lên: 28/08/2013, 09:14

... validation study of the proposed method Determination of EDTA in river water samples For the application of this analytical method to environmental water samples, concentrations of EDTA in river ... the Examination of Water Occurrence of EDTA in river water samples from three regions of Japan was examined EDTA was detected in ten of thirteen river water samples A high level of EDTA was observed ... mL methanol and mL of Milli-Q water, respectively Extraction of water samples was carried out at a flow rate of 10mL/min After extraction, cartridges were rinsed with 3mL of Milli-Q water and...

Ngày tải lên: 05/09/2013, 10:15

... portfolio of renewable energy technologies is available [7] Some of these produce fluctuating output, like wind and photovoltaic power (PV), but some of them (such as biomass, hydropower and ... making for power sector developments Hydropower has historically been Chile’s single largest power source Droughts, however, have periodically curtailed hydropower production, causing supply shortfalls ... records of 59 renewable energy projects, either approved or in progress, with a total generating capacity of over 1.700 MW, representing 17% of a total of 10.225 MW capacity, with the majority of...

Ngày tải lên: 05/09/2013, 14:58

... respectively He is a professor of School of Energy and Environment, Hebei University of Technology Since from 2005, he has taken as the dean of School of Energy and Environment of HBUT His work focus ... different input powers of the thermoelectric module Figure compares the variations of COP under different input powers of the thermoelectric module It can be seen that the COP of the TED increases ... where PTE is the power of the thermoelectric module (W), and PF is the power of the cooling fan(W) The total heat-transfer rate (Qc) of the fin heat exchanger on the cold side of the TED is calculated...

Ngày tải lên: 05/09/2013, 16:10

... analysis of a system, the calculation is started from the point where power fluid enters the system Because the output of an element is the input for another In the cost balance equations of each ... the exergy cost of the product Results and discussion The first and second law analysis of thermodynamics is applied to the examined steam power plant According to the results of the first law ... variation of turbine power according as fluid mass flow rate and boiler temperature was given in Figure With the rise in boiler temperature and mass flow rate values, the amount of power gained...

Ngày tải lên: 05/09/2013, 16:11

... definition of Small size (S), Big size (B), High BE/ME (H), Medium BE/ME (M), Low BE/ME (L) as following: Type of company H M L All Type of company B S All Max of BE/ME Number of companies Min of BE/ME ... VNindext is the value of VNIndex as the end of is the value of VNIndex as the end of period t+1 18 EMPIRICAL RESULT 5.1 Test Result Summary We will test the time regression of three -factor Fama-French ... fraction of total variance of market portfolio In Roll’s critique, he also points out a number of drawbacks of CAPM such as its implication of market efficiency or formation of market portfolio which...

Ngày tải lên: 09/09/2013, 23:57

... resistance of 25 R at 20 C? Ans 2.53 485 Q per 100 ft A wire with a resistance of 5.16 Q has a diameter of 45 mils and a length of 1000 ft Another wire of the same material has a resistance of 16.5 ... resistance of 500 ft of No AWG wire of the same material at 25"C? The cross-sectional area of this wire is 0.0206 in2 24 [CHAP RESISTANCE Perhaps the best approach is to calculate the resistance of ... the resistivity of tin if a cube of it 10 cm along each edge has a resistance of 1.15 pR across opposite faces,? Am 2.48 67.1 R The resistance of a wire is 25 R Another wire of the same material...

Ngày tải lên: 19/10/2013, 18:15

... source of energy produces or delivers power and a load absorbs it The SI unit of power is the wutt with unit symbol W The quantity symbol is P for constant power and p for time-varying power If J of ... circuit analysis with, it is hoped, less effort and more understanding Since this book begins with the analysis of dc resistive circuits and continues to that of ac circuits, as the popular circuit ... Balanced Y Circuit Balanced A Load Parallel Loads Power Three-Phase Power Measurements Unbalanced Circuits PSpice Analysis of Three-Phase Circuits...

Ngày tải lên: 19/10/2013, 18:15