Rectification
Download
1 / 54

RECTIFICATION - PowerPoint PPT Presentation


  • 400 Views
  • Uploaded on

RECTIFICATION. X-RAY CIRCUIT. Whenever the art of medicine is loved, there is also love for humanity. Hippocrates. RECTIFICATION. PROCESS BY WHICH ALTERNATING CURRENT IS CHANGED TO PULSATING DIRECT CURRENT. A/C GENERATOR A/C CURRENT 1 PHASE. A/C ( UNRECTIFIED)- FREQUENCY 60 Hz.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' RECTIFICATION' - selah


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript



Rectification1

RECTIFICATION for humanity.

PROCESS BY WHICH ALTERNATING CURRENT IS CHANGED TO PULSATING DIRECT CURRENT


A c generator a c current 1 phase
A/C GENERATOR A/C CURRENT for humanity.1 PHASE

A/C ( UNRECTIFIED)- FREQUENCY 60 Hz


60 POSITIVE PULSES/SEC for humanity.

60 NEGATIVE PULSES/SEC


60 POSITIVE for humanity.

PULSES

60 NEGATIVE

PULSES

120 PULSES

60 FULL CYCLES



Pulsating d c vs a c how an electric generator works
Pulsating D/C vs A/C for humanity.How an Electric Generator Works


Battery current output
BATTERY – CURRENT OUTPUT for humanity.

STEADY D/C


A c vs steady d c rectification
A/C vs Steady D/C for humanity.rectification


D c half wave rectified
D/C HALF WAVE RECTIFIED for humanity.

D/C HALF-WAVE – 60 POSITIVE PULSES/SEC

NEGATIVE PULSES ARE SUPPRESSED

1 PULSE/CYCLE


D c full wave rectified
D/C FULL WAVE RECTIFIED for humanity.

D/C HALF-WAVE – 120 POSITIVE PULSES/SEC

2 PULSES/CYCLE


Three phase power
THREE PHASE POWER for humanity.

http://www.shermanlab.com/xmwang/javappl/acMotor1.html


D c 3 phase 6 pulse current
D/C -3 PHASE 6 PULSE CURRENT for humanity.

D/C 3 PHASE 6 PULSE – 6 PULSES/CYCLE


D c 3 phase 12 pulse
D/C - 3 PHASE 12 PULSE for humanity.

D/C 3 PHASE 12 PULSE – 12 PULSES/CYCLE


Diodes or valve tubes help rectify a c current
DIODES OR VALVE TUBES HELP RECTIFY A/C CURRENT for humanity.

ELECTRONS

DIODE

VALVE TUBE


Valve tube
VALVE TUBE for humanity.


Diode
DIODE for humanity.



Reverse bias
REVERSE BIAS for humanity.

+

-

NO

X-RAY


Forward vs reverse
FORWARD vs REVERSE for humanity.


Rectification types
RECTIFICATION TYPES for humanity.

  • HALF-WAVE

  • FULL WAVE

  • THREE PHASE SIX PULSE

  • THREE PHASE TWELVE PULSE

  • HIGH FREQUENCY SINGLE PHASE


Rectification i phase
RECTIFICATION – I PHASE for humanity.

NO RECTIFICATION

HALF-WAVE

FULL-WAVE


Three phase power1
THREE PHASE POWER for humanity.

http://www.shermanlab.com/xmwang/javappl/acMotor1.html


3 phase rectification
3 PHASE RECTIFICATION for humanity.


3 phase rectification1
3 PHASE RECTIFICATION for humanity.








3 phase 6 pulse
3 PHASE 6 PULSE for humanity.


3 phase 12 pulse
3 PHASE 12 PULSE for humanity.


High frequency
HIGH FREQUENCY for humanity.


Ripple
RIPPLE for humanity.


Voltage ripple
VOLTAGE RIPPLE for humanity.

  • HALF WAVE------------------- 100%

  • FULL WAVE ------------------ 100%

  • 3 PHASE 6 PULSE ----------- 13%

  • 3 PHASE 12 PULSE ---------- 4%

  • HIGH FREQUENCY ---------- <1%


Ripple1
RIPPLE for humanity.

200%

100%

100%


Ripple 3 phase
RIPPLE-3 PHASE for humanity.

13%


Ripple high frequency
RIPPLE-HIGH FREQUENCY for humanity.

<1%



Checking failure of rectification system
CHECKING FAILURE OF RECTIFICATION SYSTEM for humanity.

  • SPINNING TOP TEST – 1 PHASE EQUIPMENT

  • SYNCHRONOUS SPINNING TOP TEST-

    3 PHASE WITH LONGER EXPOSURE TIMES

  • OSCILLOSCOPE- 3 PHASE EQUIPMENT WITH SHORT EXPOSURE TIMES


Spinning top test
SPINNING TOP TEST for humanity.



Half wave rectification2
HALF- WAVE RECTIFICATION for humanity.

# OF DASHES = TIME (SEC) x 60 PULSES


Full wave rectification3
FULL- WAVE RECTIFICATION for humanity.

# OF DASHES = TIME (SEC) x 120 PULSES



3 phase rectification longer exposure time
3 PHASE RECTIFICATION- for humanity.LONGER EXPOSURE TIME

DEG. OF ARC = 360°/ sec x TIME (sec)


Utilizing oscilloscope
UTILIZING OSCILLOSCOPE for humanity.


Utilizing oscilloscope rectified system
UTILIZING OSCILLOSCOPE for humanity.RECTIFIED SYSTEM


ad