Electrical Motor Controls for Integrated Systems
5th Edition
ISBN: 9780826912268
Author: Gary Rockis;Glen A. Mazur
Publisher: American Technical Publishers
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Chapter 30.1, Problem 1CP
To determine
To provide: The three types of equipment monitoring.
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The short-circuit test has been carried out on a single-phase transformer of 2500kVA,50kV/10kV, with the following results: 4000V, 50A , 50000 WIt is known that the transformer has a vacuum current equal to 2% and its efficiency at full load fp=1 is 97.5%.
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A. Parameters of the excitation branch. Rfe, JXm, Pob. Relative voltage drops. εcc, εrcc, εxcc
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Electrical Motor Controls for Integrated Systems
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- Magnetic Field Analysis of a Helical Coil In this lab you will analyse the inductive coil structure shown in Figure 1. It comprises a solid round copper wire of radius a = 0.8mm, wound into a cylindrical spiral having N = 20 turns, major radius R = 10mm and an axial pitch p = 2mm. The coil is excited by a dc current of 1A. R P 1 (a) Analytic Calculations Figure 1: Helical Air-cored Coil Using the expressions developed in the class, estimate the magnetic flux density B at the centre of the coil. Recall from EN1216 that for a long solenoid, the flux density is given by: HONI B l As we saw in the class (see section 4) a modified expression can also be derived that eliminates the need for the 'long' solenoid assumption: R α1 Р â B = HONI 2l (cosa₂-cosα1) 1 Compare the results obtained using equations (1) and (2) and state which solution you would expect to give the best approximation to the real coil behaviour.arrow_forwardI need immediate help with my SIMULINK model. I don't know why but no matter how much a increase or decrease Kc or TI, the graphs are the same. C'A0(s) is the disturbance going through G'D(s). Please check my transfer function blocks by taking the laplace transform of the equations. Any suggestions is welcome greatly! thanksarrow_forwardP 4.4-22 Determine the values of the node voltages V1, V2, and v3 for the circuit shown in Figure P 4.4-22. 202 ww 4ia 202 w + + ±12 V V₁ ΖΩ V2 ΖΩ V3 11 A + 하arrow_forward
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- Find the value of voltage Using SUPER POSITION. GV www 6 M 33 ww ЧА 5. 123 AM 4 4 ۱۹۷arrow_forwardPlease explain in detail. I am most confused on how to get the transfer functions. thank youarrow_forwardPlease explain step by step in detail. I am most confused about the table. Thank youarrow_forward
- Using the block diagram or solution, show that the expected gain in the transfer function CA' (s)/Q'(s) is negative. Please explain how to approach this. No typed answers where the equation is in one line and it's hard to understand, please дома dela 1 C_AO G2(s) G3(5) dCA(t) dt dT' (t) dt = 2 Q beta 3-a G1(s) G4(s) (-AHko E koe RT + EKOČA RT2 E e E F T' (t) + Co (t) E 1 (All) (- -)+(y) = pcp eRT CA(t) + Е КОСАДНЕ PCPRT2 eRT T'(t) + Q'(t) 2 Tarrow_forwardplease explain in detail. I am most confused about 3.2 and 3.3. thank youarrow_forwardNO AI PLEASEarrow_forward
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