Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Electrical & Electronics Expert

1) Describe the constructional details of DC generator with the help of neat sketch? 

2) a) Deduce the condition for maximum efficiency of the DC generator.

b) Describe the losses occurring within the DC generators in detail.

3) Develop a neat sketch of the 3 point starter of a DC shunt motor and describe how the motor is protected against the overload and failure of supply voltage.

4) Describe the swinburne’s test on a DC machine with the help of a suitable diagram and also steps involved in estimating efficiency of machine when running as

a) Motor

b) Generator.

5) The primary and secondary windings of the 30KVA, 6000/230V, transformer have the resistance of 10Ω and 0.016Ω respectively. The total reactance of transformer referred to the primary is 23 Ω. Determine the % regulation of transformer when supplying full load current ata pf of 0.8 lagging.

6) Describe the phasor diagram of the transformer for a leading power factor hence derive an expression for voltage regulation.

7) Deduce the equation for the saving of copper of an autotransformer

8) Describe the 3 phase to 2 phase transformer conversion

9) Deduce the E.M.F equation of a PMBL DC motor.

10) Describe the different power controllers in detail.

Electrical & Electronics, Engineering

  • Category:- Electrical & Electronics
  • Reference No.:- M913223

Have any Question? 


Related Questions in Electrical & Electronics

Consider a microphone intended for use in a music recording

Consider a microphone intended for use in a music recording studio. Determine a suitable frequency response (lowpass, highpass, bandpass, or bandstop) for the microphone, and provide suitable values (such as δp and ωs) t ...

1 a 15 v aa battery that costs 1 is rated at 18 ah what is

1. A 1.5 V AA battery that costs $1 is rated at 1.8 Ah. What is its cost per kWh? 2. Suppose a 12-V battery bank rated at 200 Ah under standard conditions needs to deliver 600 Wh over a 12-h period each day. If they oper ...

1 briefly outline the reasoning used for the removal of the

1. Briefly outline the reasoning used for the removal of the inconsistency with Maxwell's equations of the intuitively derived fields due to the Hertzian dipole. 2. Discuss the characteristics of the complete electromagn ...

1 energy calculationsbuilding sf 20000 sfelectric rateuse

1. Energy Calculations Building SF = 20,000 sf Electric Rate: Use MTSU Utility Rate Schedule - Seasonal Rates Lighting: 2 watts/sf hours of operation = 19 hours per day Motors: One water pump motor, 80% efficient, runnin ...

1 oil is supplied at the center of two long plates the

1. Oil is supplied at the center of two long plates. The volumetric flow rate per unit length is Q and the plates remain a constant distance, b, apart. Determine the vertical force per unit length as a function of the Q, ...

1 if alice and bob need to communicate using asymmetric-key

1. If Alice and Bob need to communicate using asymmetric-key cryptography, how many keys do they need? Who needs to create these keys? 2. Why do you think asymmetric-key cryptography is used only with small messages. 3. ...

An ideal transformer has a 150-turn primary and 750-turn

An ideal transformer has a 150-turn primary and 750-turn secondary. The primary is connected to a 240-V, 50-Hz source. The secondary winding supplies a load of 4 A at a lagging power factor (pf ) of 0.8. Determine (a) th ...

Afirst-order ltic system has a characteristic root lambda

A first-order LTIC system has a characteristic root λ = -10 4 . a. Determine T r , the rise time of its unit step input response. b. Determine the bandwidth of this system. c. Determine the rate at which the information ...

A dc pump connected to a pv module runs a garden water

A dc pump connected to a PV module runs a garden water fountain. The pump I -V curve and the hourly I -V curves for the module are shown. Once the pump starts running, it needs 8 V to keep spinning. At what time in the m ...

A rectangular plastic specimen of size 100 x 100 x 10

A rectangular plastic specimen of size 100 X 100 X 10 mm 3  is placed in a rectangular metal cavity. The dimensions of the cavity are 101 X 101 X 9 mm 3 . The plastic is compressed by a rigid punch until it is completely ...

  • 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

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen