Determine the %Vdrop at the Main Distribution Panel (MDP) and atthe end of the Service Panel (SP) for the system shown below.Transformer TRı800KVA6600 – 1000VR = 1.5%, X= 5%30ft two 400 kcmil copper/phase, steel conduit2000AMDP600KVA, 0.9 lagging PF1500A400A250A35ft #8 AWG aluminum, steel conduitTransformer TR240KVA1000 – 415VR = 3.5%, X= 4%12ft #12 AWG copper, aluminum conduit150AdideoSP100A 20KVA, 0.85 lagging PF

We have to find total voltage drop so we will determine voltage drop in transformers and cables

Answered: Determine the %Vdrop at the Main…

Determine the %Vdrop at the Main Distribution Panel (MDP) and at the end of the Service Panel (SP) for the system shown below.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.16MCQ: In developing per-unit circuits of systems such as the one shown in Figure 3.10. when moving across...

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Concept explainers

Distribution System

The final stage in the delivery of the electric power is the electric power distribution system. From the transmission system to the individual customers it carries electricity. The distribution system is connected with the transmission system and is used to lower the voltage of the transmission to medium voltage in the range of 2 kV to 35 kV with the help of transformers. This medium voltage to the distribution transformers located near the customer's premises is carried by the primary distribution system lines. These distribution transformers in turn lower the voltage to utilization voltage used in lightings, household appliances, industrial equipments etc. Through secondary distribution lines often several customers are supplied from one transformer. It is through service drops, the commercial and residential customers are connected to the secondary distribution system lines. Customers who demand a larger amount of power can be connected directly to the primary distribution system level or the sub-transmission level.

Question

Determine the %Vdrop at the Main Distribution Panel (MDP) and at
the end of the Service Panel (SP) for the system shown below.
Transformer TRı
800KVA
6600 – 1000V
R = 1.5%, X= 5%
30ft two 400 kcmil copper/phase, steel conduit
2000A
MDP
600KVA, 0.9 lagging PF
1500A
400A
250A
35ft #8 AWG aluminum, steel conduit
Transformer TR2
40KVA
1000 – 415V
R = 3.5%, X= 4%
12ft #12 AWG copper, aluminum conduit
150A
dideo
SP
100A 20KVA, 0.85 lagging PF

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