Solution-Determine the current settings and tms

Determine the current settings and tms

Assignment Help Mathematics

Reference no: EM13276447

The use of unit protection where differential relays areprotecting transformers. For each of the circuit breaker configurations:

(i) CB A open and CB B closed

(ii) CB A closed and CB B open(all other CBs closed)

(a) To a base of 10 MVA determine initially the fault levels at the 11 kVand 3.3 kV busbars for a fault at the transformer, T1, output asshown.

(b) Determine the current settings and TMSs for the relays shown if theoperating time of the directional overcurrent relays on the 3.3 kV sideof the transformers is 0.5 s.

(Use a 0.4 s discrimination interval.)

State with which of the CB configurations the directional overcurrentrelays (if any) will not operate.

Attachment:- 20130806-175507.jpg

Reference no: EM13276447

Questions Cloud

At what angle from the vertical was the bombsight set : A bomber is flying horizontally over level terrain at a speed of 260 m/s relative to the ground and at an altitude of 2.60 km. At what angle from the vertical was the bombsight set

Determine the impulse imparted to the golf ball : A golf ball of mass 0.045 kg is hit off the tee at a speed of 35m/s . The golf club was in contact with the ball for 3.90×10?3s. Find the impulse imparted to the golf ball

Compute the velocity of the rain : A car travels due east with a speed of 42.0 km/h. Raindrops are falling at a constant speed vertically with respect to the Earth. Find the velocity of the rain with respect to the following reference frames

Is the time series stationary does it have constatnt varianc : Plot the ACF and PACF of the transformed time series.Examine these plots for non-stationary.If appropriate difference the data and seasonality difference the data.(Note this di=etermines d and D in the ARIMA(p,d,q)s model.

Determine the current settings and tms : Determine the current settings and TMSs for the relays shown if theoperating time of the directional overcurrent relays on the 3.3 kV sideof the transformers is 0.5 s.

Describe how you would prepare na2co3 solution : Describe how you would prepare the following aqueous solution: 230 g of a solution that is 0.60 molal Na2CO3 starting with the solid solute.

Explain concentrated hcl was added to a ca(oh)2 suspension : Concentrated HCl was added to a Ca(OH)2 suspension (in water) and the precipitate dissolved. Explain this observation on the basis of a Le Chatelier's shift in the equilibrium.

Explain what is the concentration of the solution in um : A 6.38 mg sample of potassium hydrogen phthalate was dissolved in 50 mL of water and to use as a standardizing aging. If 36.5 mL of NaOH was required to reach the end point, what is the concentration of the solution in uM

Depict additional molecules of sulfanilamide : You have proven sulfanilamide is capable of forming a stable and selective crystal lattice. Draw additional molecules of sulfanilamide and hypothesize the intermolecular interactions that are most important for providing a stable and selective cry..

User Account

All Pages

Determine the current settings and tms

Reference no: EM13276447

Reference no: EM13276447

Questions Cloud

Reviews

Write a Review

Mathematics Questions & Answers

Questions on ferris wheel

Logistic map

Finding the probability of cards

Systems of ode

Derive the boolean expression

System of equations

Linear programming problem

Find the natural domain

Introduction to numerical methods

Chart of the topological manifold

Mathematics in computing

Complex problems

Assured A++ Grade

Academics

Major Subjects

Majors

Get In Touch

TERMS & POLICIES

HELP & SUPPORT