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Title: construction and working principle of megger ppt
Page Link: construction and working principle of megger ppt -
Posted By: rejinraj
Created at: Thursday 05th of October 2017 03:52:25 AM
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constuction and working principle of megger test for motors
construction and working principle of megger

constuction and working principle of megger test for motors
construction and working principle of megger
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Title: LOAD TEST ON 3-PHASE SLIP RING INDUCTION MOTOR
Page Link: LOAD TEST ON 3-PHASE SLIP RING INDUCTION MOTOR -
Posted By: pavan
Created at: Thursday 17th of August 2017 05:45:57 AM
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AIM :
To conduct a direct load test on a 3-phase slip ring induction motor and to draw the performance characteristics.
FUSE RATING-
FOR- STATOR- 125% 0f 7.5A = 10A
FOR ROTOR 125% of 11A = 15A
THEORY:
Slip ring induction motor is also called as phase wound motor. The motor is wound for as many poles as the no. of stator poles and always wound 3- even while the stator is wound two-phase. The other three windings are brought out and connected to three insulated slip-rings mounted on the shaft w ....etc

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Title: megger test tamil pdf files
Page Link: megger test tamil pdf files -
Posted By: jasmin
Created at: Thursday 05th of October 2017 04:57:27 AM
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FULL ANSWER
Megger testing does not cause any damage, making it a good option when someone does not want to put holes in walls to test electrical insulation for any problems or issues. The testing device only goes between 500 and 1,000 volts, which is relatively low. Due to the low voltage, some punctures in insulation go undetected. It generally provides information about the leakage current and whether insulation areas have excessive dirt or moisture as well as the amount of moisture, deterioration and winding faults. ....etc

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Title: megger ppt
Page Link: megger ppt -
Posted By: jithin
Created at: Thursday 05th of October 2017 04:01:06 AM
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to get information about the topic megger related topic refer the page link bellow

http://seminarsprojects.net/Thread-megger ....etc

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Title: MEGGER
Page Link: MEGGER -
Posted By: sarmistha.malla
Created at: Friday 06th of October 2017 03:14:30 PM
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The megger is a portable instrument used to measure insulation resistance. The megger consists of a DC generator and a direct reading ohm meter.
The megger measures the insulation resistance between the body of a machine and the armature winding. By applying the operating voltage between the body of machine and the armature winding one can check the insulation resistance. If the reading of the megger is less than 1 Mohm it indicates that there is some fault.
The megger checks the the possible following faults:
1. Burnin ....etc

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Title: LOAD TEST ON THREE PHASE INDUCTION MOTOR SLIP RING
Page Link: LOAD TEST ON THREE PHASE INDUCTION MOTOR SLIP RING -
Posted By: deepakram45
Created at: Thursday 05th of October 2017 05:33:13 AM
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AIM
To conduct load test on three-phase Slip Ring induction motor.
APPARATUS REQUIRED
PRECAUTION

The motor should be started without any load.
PROCEDURE
1. Connections are given as per the circuit diagram.
2. The TPST S is closed and the motor is started using online starter to run at rated speed.
3. At no load the speed, current, voltage and power are noted down.
4. By applying the load gradually with the help of spring balance and brake drum arrangements.
5. The speed, current, voltage, pow ....etc

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Title: LOAD TEST ON 3-PHASE SQUIRREL CAGE INDUCTION MOTOR
Page Link: LOAD TEST ON 3-PHASE SQUIRREL CAGE INDUCTION MOTOR -
Posted By: vasttrap
Created at: Thursday 17th of August 2017 05:14:21 AM
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AIM:
To draw the performance characteristics of 3-phase squirrel cage induction motor by conducting load test.
THEORY:
A 3-phase induction motor consists of stator and rotor with the other associated parts. In the stator, a 3-phase winding is provided. The windings of the three phase are displaced in space by 120 .A 3-phase current is fed to the 3-phase winding. These windings produce a resultant magnetic flux and it rotates in space like a solid magnetic poles being rotated magnetically. ....etc

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Title: Load Test on Three Phase Induction Motor Squirrel gauge
Page Link: Load Test on Three Phase Induction Motor Squirrel gauge -
Posted By: ibinissac
Created at: Thursday 05th of October 2017 04:08:32 AM
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Aim
To conduct load test on three-phase squirrel cage induction motor.
Apparatus Required
Precaution

The motor should be started without any load.
Procedure
1) Connections are given as per the circuit diagram.
2) The TPSTS is closed and the motor is started using star-delta starter to run at rated speed.
3) At no load the speed, current, voltage and power are noted down.
4) By applying the load gradually with the help of spring balance and brake drum arrangements.
5) The speed, current, volta ....etc

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Title: brake test on three phase squirrel cage induction motor
Page Link: brake test on three phase squirrel cage induction motor -
Posted By: nazeem
Created at: Thursday 17th of August 2017 05:49:16 AM
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brake test on three phase squirrel cage induction motor

The three phase induction motor is the most widely used electrical motor. Almost 80% of the mechanical power used by industries is provided by three phase induction motors because of its simple and rugged construction, low cost, good operating characteristics, absence of commutator and good speed regulation. In three phase induction motor the power is transferred from stator to rotor winding through induction. The Induction motor is also called a synchronous motor as it runs at a speed ....etc

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Title: LOAD TEST ON SINGLE PHASE INDUCTION MOTOR
Page Link: LOAD TEST ON SINGLE PHASE INDUCTION MOTOR -
Posted By: fuzzu
Created at: Thursday 17th of August 2017 05:21:39 AM
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AIM:
To determine the performance characteristics of the given single phase induction motor by direct loading.
APPARATUS REQUIRED:
Precaution

The motor should be started without any load.
Procedure
1. Note down the name plate details of motor. Connections are given as per the circuit diagram.
2. The DPST is closed in the supply side.
3. The motor is started by gradually varying the autotransformer and the rated voltage is applied.
4. At no load, the speed, current, voltage and power are noted down.
5 ....etc

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