Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Electrical & Electronics Expert

Task: Protection

Do all required settings to protect a given transmission line shown in figure below:

671_protection-power plant.jpg

Figure: Layout of a given power system

Instructions:

1) Compute the setting of all current transformers.

2) Complete the wiring of relays following to the given instruction in MCCG manual (attached).

3) Compute and do the setting of relays using the given instructions:

a) Use the inverse curve.
b) Use relay1 as the primary protection, relay to as the backup protection and relay3 as the secondary backup protection device for potential faults on the transmission line.
c) Consider 0.2s delay as the interruption delay and 0.1s as the marginal delay between protection steps.

Task: Fault computation and interruption capacity

Consider the power system described in figure and table shown below and do the given tasks:

1445_power system.jpg

Figure: A given power system with one generators and 5 transmission lines.

Table:

2254_fault calculation.jpg

Instructions:

Consider transient impedances are 80% of nominal impedances of generators in the given system. The base power is 100MWA.

Do the given tasks:

1) Point out and label the location of all circuit breakers and disconnects in the circuit.

2) Compute the current ratings and interruption capacity of all switches.

3) Suppose a single phase ground fault takes place in Bus 3.

4) List the required protection actions, referring to the name of circuit breakers and disconnects

5) Compute the fault current.

6) Suppose a two phase fault-ground takes place in Bus 2.

7) List out the required protection actions, referring to the name of circuit breakers and disconnects.

8) Compute the fault current.

Electrical & Electronics, Engineering

  • Category:- Electrical & Electronics
  • Reference No.:- M93400

Have any Question? 


Related Questions in Electrical & Electronics

Three identical single-phase transformers each rated at

Three identical single-phase transformers each rated at 100kVA, 7kV/3.5 kV are connected as a three-phase transformer bank. The high-voltage side of the transformer is connected in delta and the low-voltage side is conne ...

A random process with a psd ofnbspnbspis input to a filter

A random process with a PSD of    Is input to a filter. The filter is to be designed such that the output process is white (constant PSD). This filter is called a whitening filter. (a) Find the transfer function of the w ...

Ariatnam najafi and morones journal of professional issues

Ariatnam, Najafi, and Morones (Journal of Professional Issues in Engineering Education And Practice, 2002) describe an overview of academies on horizontal directional drilling conducted to train engineers and inspectors ...

A six-pole 60hz synchronous motor is connected to an

A six-pole, 60Hz synchronous motor is connected to an infinite bus of 15 kV through a transmission line. The synchronous reactance of the motor is 5Ω, and the inductive reactance of the transmission line is 2Ω. When Ef i ...

Questiona 3phase transmission line 200 km long has the

Question: A 3phase transmission line 200 km long has the following constants •Resistance / phase / km=0.16 ohms •Reactance/phase/km= 0.25 ohms •Shunt admittance/ phase/ km =1.5 *10 -6 S Calculate by rigorous method the s ...

You have a random process with the following correlation

You have a random process with the following correlation matrix Determine the pure prediction Wiener filter. That is, find the coefficients of the impulse response    Then determine the power spectrum of the Wiener filte ...

N pulse amplitude modulation pam where an analog signal is

n pulse amplitude modulation (PAM) where an analog signal is sampled and represented by varying-height pulses, a minimum bandwidth on the order of 1/(2T) is required to transmit a pulse train. In pulse code modulation (P ...

Each of the two wattmeters connected to measure the inputs

Each of the two wattmeters connected to measure the inputs to a 3-phase induction motor reads 10 kw. if the power factor of the motor be changed to 0.866 lagging. Determine the reading of the two wattmeters, the total po ...

D none 12 visit the intel on-line microprocessor museum

[D, None, 1.2] Visit the Intel on-line microprocessor museum (http://www.intel.com/intel/intelis/museum/exhibit/hist_micro/index.htm). While browsing through the microprocessor hall-of-fame, determine the rate of increas ...

A three-phase 60-hz four-pole 10-hp 460-v line-line nns

A three-phase, 60-Hz, four-pole, 10-hp, 460-V (line-line, nns) induction motor has a full-load speed of 1746 rpm. Assume the torque-speed characteristic in a range of 0- 150% rated torque to be linear. It is driven by an ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

A cola-dispensing machine is set to dispense 9 ounces of

A cola-dispensing machine is set to dispense 9 ounces of cola per cup, with a standard deviation of 1.0 ounce. The manuf

What is marketingbullwhat is marketing think back to your

What is Marketing? • "What is marketing"? Think back to your impressions before you started this class versus how you

Question -your client david smith runs a small it

QUESTION - Your client, David Smith runs a small IT consulting business specialising in computer software and techno

Inspection of a random sample of 22 aircraft showed that 15

Inspection of a random sample of 22 aircraft showed that 15 needed repairs to fix a wiring problem that might compromise

Effective hrmquestionhow can an effective hrm system help

Effective HRM Question How can an effective HRM system help facilitate the achievement of an organization's strate