how do we know the LT or HT panel trip by some broblem which
indication willshow
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What is the difference between diesel generator engine with and without turbo charger with the same capacity?
electrical knowelge
66kv under ground cable how to layaing in ground any special case two ckt r runing
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Block diagram of Power line communication?
1. A 380 / 220 V r.m.s. 3-phase 4-wire circuit carries loads of 8 + j8.1 ohm; 4 + j4.1 ohm; and 2 +j2.1 ohmin the three phases respectively. The length of the circuit is 100 m, and the resistivity of the phase conductors is 0.0005 Ω/m. The neutral conductor is of the same size as the phase conductors. a) Select a reference angle 0for the first phase. Then write down the three phase voltages in both polar format and complex number format. b) Make appropriate assumptions, and take temperature effects on resistance is insignificant. Calculate the currents in the three phases. (Note: Determine conductor resistance, and apply Kirchhoff’s Voltage Law) Based on the result, suggest a main switch rating for the circuit. c) Show your preferred direction of neutral current in a diagram, and then determine its value. (Note: Apply superposition principle, and Kirchhoff’s Current Law) Use its magnitude to show that in this circuit, the unbalanced load may increase the voltage drop in some of the phases. (Note: Also observe the common volt drip in neutral) State your assumptions, if there are any. d) Suddenly the neutral wire of the circuit is broken. Estimate the new currents in the first phase, i.e. Phase L1. State your assumptions, if there are any.
will the introduction of capacitor bank parallel with the induction load reduce power consumption
4 Answers Nokia, WAPDA Water and Power Development Authority,
How conventional fire alarm system works?
how do you select the ct/pt rating in substation
1 Answers Apollo, Shreem Electric Ltd, Tata Motors,
why can not run two different phase circuit in to the same conduite
What are the different types of cable jointing methods for HT and LT power cable?
How we can calculate what type of supply we need for an example sometimes we take 11 KV and sometime 33KV from EB ?
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