equipment—metal enclosed power switchgear and industrial control assemblies

... 1.9 Review questions and problems Switching devices and control electrode requirements 2.1 Rating, safe operation area and power handling capability of devices 2.1.1 Power handling capability (PH) ... Harmonic properties 8.1.2 R.m.s voltage and current 8.1.3 Power and power factor 8.1.3.1 Average power 8.1.3.2 Power factor 8.1.3.3 Reactive voltamperes and power factor correction 8.1.4 Worked ... 8.2.5 Power and power factor 8.2.6 Worked examples 8.3 Resistive load with integral-cycle triggering 8.3.1 Harmonic and subharmonic properties 8.3.2 R.m.s voltage and current 8.3.3 Power and power...

Ngày tải lên: 29/04/2016, 09:46

... compartmented switchgear and controlgear (with - cubicle switchgear and controlgear one or more non-metal1ic.partition.s); 3.102.1 Metal-clad switchgear and controlgear Metal -enclosed switchgear and controlgear ... devices and equipment with assodatedinterconnections, accessories, enclosures and supportingstructures (IEV 441-1 1-01) 3.102 Metal -enclosed switchgear and controlgear Switchgear and controlgear assemblies ... specified in I E C 466 are met 3.102.3 Cubicle switchgear and controlgear Metal -enclosed switchgear and controlgear, other than switchgear and controlgear COPYRIGHT 2002; International Electrotechnical...

Ngày tải lên: 25/12/2013, 10:57

... Low-voltage switchgear and controlgear, of IEC technical committee 17: Switchgear and controlgear This second edition cancels and replaces the first edition published in 1992, amendment (1997) and amendment ... SWITCHGEAR AND CONTROLGEAR – Part 6-2: Multiple function equipment – Control and protective switching devices (or equipment) (CPS) Scope and object This part of IEC 60947 applies to control and ... to 6.1.1 and 6.1.2 above: – Data a and b and relevant operational data under d, e, and f – Data a and b shall be marked on the CPS and preferably on the nameplate if any – Data under c and n shall...

Ngày tải lên: 04/04/2014, 12:00

... metal -enclosed switchgear and controlgear for rated voltages above kV and up to and including 52 kV IEC 60298 201 Insulation -enclosed switchgear and controlgear for rated voltages up to and including ... Requirements for gases in switchgear and controlgear 35 Earthing of switchgear and controlgear 35 Auxiliary and control equipment 37 Dependent power operation ... definitions, apply 3.101 metal -enclosed switchgear and controlgear switchgear and controlgear assemblies with an external metal enclosure intended to be earthed, and complete except for external...

Ngày tải lên: 04/04/2014, 12:34

... velocity of sound Condensed and in some cases converted from U.S Standard Atmosphere 1976, National Oceanic and Atmospheric Administration and National Aeronautics and Space Administration, Washington, ... °E Lange, L F Sokol, and V Antoine, Information on the Metric System and Related Fields, 6th ed., G C Marshall Space Flight Center, AL (exhaustive bibliography); C H Page and P Vigoureux, The ... liquid Condensed, converted, and interpolated from the tables of M P Vukalovich, A I Ivanov, L R Fokin, and A T Yakovlev, Thermophysical Properties of Mercury, Standartov, Moscow, USSR, 1971...

Ngày tải lên: 26/12/2013, 01:18

... products and R reactants, s signifies sensible enthalpy, and the bhs are looked up in the table for the appropriate temperatures If the actual reaction was C2H2 + U/2O2 -» 2CO2 + H2O + 3O2 then W = and ... Converted and usually rounded off from JANAF Thermochemical Tables, NSRDS-NBS-37, 1971 foTo illustrate the term sensible enthalpy, which is the difference between the actual enthalpy and the enthalpy ... transfer, in kJ/kg • mol fuel and in kJ/kg fuel, will be calculated for the steady-state combustion of acetylene in excess oxygen, the reactants entering at 298.15 K and the products leaving at...

Ngày tải lên: 26/12/2013, 01:18

... for circulation by any means other than stated above 1/26 Industrial Power Engineering and Applications Handbook Figure 1.20(a) Totally enclosed tube ventilated (TETV) squirrel cage motor (Cooling ... These are series motors and are relatively compact and lightweight compared to an a.c motor The use of such motors is therefore common for hand tools and home appliances and also for such applications ... See Figures 1.21 and 1.22 1.I7 Single-phase motors Application - Domestic appliances - Small machine tools - Industrial and domestic fans, pumps, polishers, grinders, compressors and blowers etc...

Ngày tải lên: 19/01/2014, 23:20

... assembly Power circuits and control scheme diagrams Painting Procedure of switchgear and control gear assemblies and treatment of effluent 14 Testing of a Metal -enclosed Switchgear Assemblies ... conditions Switchgears for motor protection Selection of main components Fuse-free system Part II Switchgear Assemblies and Captive Power Generation 13 Switchgear and Controlgear Assemblies ... Testing, Controls and Protection of Electric Motors Static Controls and Braking of Motors Speed control in squirrel cage motors Speed control through solid-state technology V u control (speed control...

Ngày tải lên: 19/01/2014, 23:20

... Diagram of power network For this network, the power factor (cosϕ) and reactive power compensation is considered for each voltage level According to surveys of Power Transmission Companies and Utilities, ... (imposible maximum power of loads) [4,5] In practice, the power of loads vary depending on demand of comsumption, result in varying voltage profile and power factor, therefore effecting power supplying ... power electronic structure to control firing angle α of thyristor Power electronic structure for controlling firing angle α of thyristor 2.1 Controlling block diagram The controlling circuit block...

Ngày tải lên: 05/03/2014, 14:20

... wishing to get a solid basic understanding of instrumentation and process control Instrumentation and process control involve a wide range of technologies and sciences, and they are used in an unprecedented ... from the control of heating, cooling, and hot water systems in homes and offices to chemical and automotive instrumentation and process control This book is designed to cover all aspects of industrial ... process -control loop The measuring element consists of a sensor, a transducer, and a transmitter with its own regulated power supply The control element has an actuator, a power control circuit, and...

Ngày tải lên: 01/04/2014, 10:58

... Kulikov and Haydn A Thompson (Eds.) Control of Fuel Cell Power Systems Jay T Pukrushpan, Anna G Stefanopoulou and Huei Peng Fuzzy Logic, Identification and Predictive Control Jairo Espinosa, Joos Vandewalle ... of industrial control Thus, the real strength of industrial control engineering science lies in the universality of its techniques across application and industrial domains This Advances in Industrial ... 2009); and Process Control by Jie Bao and Peter L Lee (ISBN 978-1-84628-892-0, 2007) From the Editors’ sister series, Advanced Textbooks in Control and Signal Processing, the volume Analysis and Control...

Ngày tải lên: 01/04/2014, 10:59

... assembly Power circuits and control scheme diagrams Painting Procedure of switchgear and control gear assemblies and treatment of effluent 14 Testing of a Metal -enclosed Switchgear Assemblies ... conditions Switchgears for motor protection Selection of main components Fuse-free system Part II Switchgear Assemblies and Captive Power Generation 13 Switchgear and Controlgear Assemblies ... Testing, Controls and Protection of Electric Motors Static Controls and Braking of Motors Speed control in squirrel cage motors Speed control through solid-state technology V u control (speed control...

Ngày tải lên: 18/04/2014, 11:00

... 1978) and at Indian Point plant (S.M Stoller Corp 1983) c Surveillance and control procedures Biofouling control techniques can be divided into two major categories, detection / surveillance and control ... bio-fouling control in the plate HX To precisely and accurately decide the dose www.intechopen.com Biofouling and its control in seawater cooled power plant cooling water system - a review 231 and duration, ... detecting the biofouling and the subsequent flow degradation The goal of control techniques, however, is to limit biofouling to a safe and acceptable level Surveillance and control procedures could...

Ngày tải lên: 27/07/2014, 23:20

... form, where Ddif and udri are called diffusivity and drift term and given by: u−V V ; udri = (15) 6 The equation (14) and (15) show that : i) If V < u the diffusivity Ddif is positive and the diffusion ... PROCESS AND THE METHOD OF CONTROL 167 V POSSIBLE APPLICATION IN POLLUTED EARTH’S ATMOSPHERE CONTROL Main mechanism of air pollution in earth’s atmosphere is the forward diffusion The dust and industrial ... V.B.Dung and D.K.An,P.A.Tuan and N.N.Long, Proceedings of The Osaka University-Asia PacificVietnam National University Forum (2005) 92 V.B.Dung, D.K.An and P.A.Tuan and N.V Truong, Defect and Diffusion...

Ngày tải lên: 31/10/2015, 10:39

... E1, and APE concentrations for the secondary treatment water and for ozone treatment water in the sewage treatment plants than for the inflow water (Figure3 and Table 2) In domestic and industrial ... domesic and industrial wastewater from Daegu metropolitan city flows It can be confirmed that the concentrations of the estrogenic substances such as EE2, E2, E1, and APE increases at Goryung and ... excluding Namji and Nam River in May 2002 Yeast Two-hybrid assay and ELISA method for Nakdong River water revealed that estrogenic substances and activity is distributed over the whole middle and downstream...

Ngày tải lên: 05/09/2013, 08:40

... III = Seeding and planting, IV = Geotextiles and mats, V = Terracing Based on equation above, the recommended best control measure for controlling erosion due to land clearing and when the area ... addition to flow control and pollution removal The application of BMPs facilities involves a variety of stakeholders in both the public and private arenas and therefore their development and design ... Environmental TSS Control Removal cost Material availability Social and community Public health & safety risk Turbidity Control Risk of BMP fail Stakeholder acceptability Figure Erosion and sediment control...

Ngày tải lên: 05/09/2013, 16:11

Ngày tải lên: 17/10/2013, 19:15

... ground level near churches and Agricultural and Industrial Plant Biotechnology 111 schools, in parks, botanical gardens, and arboreta, and in lots where old houses and commercial buildings have ... arbutifolia (L.) Pers and A melanocarpa (Michx.) Elliott), and hawthorn (Crataegus laevigata (Poir.) DC and C monogyna Jacq.) Reasons why a wide spectrum of colored fruits and vegetables, like ... were, commonly, tobacco, barley, and oats, and, rarely peanuts, almonds, and sunflower seeds (in all, only 26 of the 188 crops the FAO tracks worldwide) Both alfalfa and hay would be in the top 10...

Ngày tải lên: 25/10/2013, 05:20

... Link Control (DLC) achieves this through the flow control mechanism There are two approaches for doing flow control: Stop -and- Wait flow control Sliding-Window flow control In the Stop -and- Wait flow control ... protocols 2.3.1 Stop -and- Wait ARQ The Stop -and- Wait ARQ error control mechanism is based on the Stop -and- Wait flow control In its simplest form, the sender transmits a frame and it waits for ACK ... for congestion and error control are also described 2.2 Congestion Control Mechanisms A simple definition of network congestion can be as follows: Chapter Congestion and Error Control in Unicast...

Ngày tải lên: 26/10/2013, 17:15

Ngày tải lên: 05/11/2013, 12:15