Nodal analysis
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Multiple Choice Questions on Power Systems - 7
Important Multiple Choice questions on Power Systems 1. For transmission line which one of the following relations is true? A) AD-BC=1 B) –AD-BC=1 C) AD-BC=-1 D) AD-BC=0 2. For a given base voltage and base volt-amp, the per unit impedance value of an element is X. what will be the per-unit impedance value of this element when the voltage and volt-amp bases are both doubled? A) 4X B) 2X C) X D) 0.5X 3. A 3-phase transmission line has its conductors at the corners of an equilateral triangle with side 3m. the diameter of each conductor is 1.63 cm. the inductance of the line per phase per km is A) 1.232 mH B)...
Activity2: Item rates for installation & commissioning of transformer
Installation & Commissioning of 315 KVA dry type transformer Schedule of quantity Note: This schedule of quantity is for providing an idea regarding item specifications during the execution of the above work. Rates are subjected to vary from time to time. Sl. No. Description of item Unit Quantity Rate (Rs) Amount (Rs.) 1 Removal of transformer yard fencing by carefully removing the nut bolts etc., Decommissioning of the existing 630 KVA, 11/0.4 kV oil transformer and shifting of transformer from the platform to the safe area within substation according the instructions of engineer in charge. job 1 7,500/- 7,500/- 2 Shifting of the 315 KVA, 11KV/433 V Cast Resin Dry type transformer from substation area to platform including locking of transformer wheels and re-fixing the fencing to original condition etc as directed by the e...
