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RELAY PROTECTION ELECTRICAL
India
Registrace 17. 08. 2019
Hi friends this channel is all about sharing of my experience in the field of electrical engineering and protection system. Different types of relays used in sub station for different protection purpose. Each of relay has specific part on protection. I am trying to share my knowledge and this is why I choose this platforms. Please go through the videos uploaded in this channel. Your valuable comments are welcome.
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Over current Relay Coordination for a Sub Station|| Case-2
Over current Relay Coordination for a Sub Station|| Case-2
zhlédnutí: 363
Video
Case Study: Differential Relay || Trip Phase A and Phase B
zhlédnutí 839Před 21 dnem
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OVER CURRENT RELAY COORDINATION IN A SUB STATION || TWO NOS TRANSFORMERS RUNNING IN PARALLEL||Case-I
zhlédnutí 755Před měsícem
OVER CURRENT RELAY COORDINATION IN A SUB STATION || TWO NOS TRANSFORMERS RUNNING IN PARALLEL||Case-I
DISTANCE RELAY || Primary to Secondary Impedance Conversion
zhlédnutí 781Před 2 měsíci
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Over Current Relay Coordination in a Sub Station
zhlédnutí 740Před 2 měsíci
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Current Transformer (CT) Polarity and Methods for Changing CT Polarity for Protection system
zhlédnutí 913Před 2 měsíci
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Function of DC Selector Switch in Control and Relay Panel for double DC source
zhlédnutí 456Před 3 měsíci
Function of DC Selector Switch in Control and Relay Panel for double DC source
Line Earth Switch (89LE) Interlock for Transmission Line in a Sub Station
zhlédnutí 711Před 3 měsíci
www.udemy.com/course/protection-used-for-power-transformer/?couponCode=931DB6D9C361B37E48B6
PT(Potential Transformer)Selection Scheme for Two Main Bus System ( 75A and 75B Relay)
zhlédnutí 760Před 3 měsíci
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Current Transformer (CT) Wiring Diagram for Metering Circuit in CRP for FDR
zhlédnutí 935Před 3 měsíci
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Importance of Core Selection Test of CT|| What will happen if Metering Core is Connected to Relay
zhlédnutí 1,1KPřed 4 měsíci
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Difference between Isolator and Circuit Breaker in a Sub Station
zhlédnutí 298Před 4 měsíci
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Current Transformer (CT) ISF(Instrument Safety Factor) V/S ALF (Accuracy Limit Factor)
zhlédnutí 628Před 4 měsíci
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Protection of Teed Feeder for Transmission Line || Overcome Difficulty for Distance Relay Settings
zhlédnutí 530Před 4 měsíci
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11 KV VCB CLOSING AND TRIPPING OPERATION WIRING DIAGRAM
zhlédnutí 653Před 5 měsíci
11 KV VCB CLOSING AND TRIPPING OPERATION WIRING DIAGRAM
Current Transformer (CT) Wiring Diagram for 11KV Switch Gear Panel
zhlédnutí 1,1KPřed 5 měsíci
Current Transformer (CT) Wiring Diagram for 11KV Switch Gear Panel
Trip Transfer Scheme for Sub Station|| How trip is Transferred to TBC Breaker
zhlédnutí 726Před 5 měsíci
Trip Transfer Scheme for Sub Station|| How trip is Transferred to TBC Breaker
Directional Over current Relay and Cross Polarization Method
zhlédnutí 1,1KPřed 6 měsíci
Directional Over current Relay and Cross Polarization Method
Impact of Different Transformers with different Percentage Impedance under Parallel Operation
zhlédnutí 797Před 7 měsíci
Impact of Different Transformers with different Percentage Impedance under Parallel Operation
Difference Between High Impedance BusBar Protection Relay and Low Impedance BusBar Protection Relay
zhlédnutí 2,5KPřed 7 měsíci
Difference Between High Impedance BusBar Protection Relay and Low Impedance BusBar Protection Relay
End Fault Protection or Dead Zone Fault Protection for Bus Bar Relay
zhlédnutí 1,7KPřed 7 měsíci
End Fault Protection or Dead Zone Fault Protection for Bus Bar Relay
BUS Bar Protection for Two Main Bus and One Transfer Bus System (Part-3)
zhlédnutí 748Před 7 měsíci
BUS Bar Protection for Two Main Bus and One Transfer Bus System (Part-3)
BUSBAR PROTECTION FOR TWO BUS SYSTEM (PART-2)|| CONCEPT OF CHECK ZONE DIFFERENTIAL CURRENT
zhlédnutí 2,9KPřed 8 měsíci
BUSBAR PROTECTION FOR TWO BUS SYSTEM (PART-2)|| CONCEPT OF CHECK ZONE DIFFERENTIAL CURRENT
Bus Bar Protection for Two Bus System (Part-1)
zhlédnutí 1KPřed 8 měsíci
Bus Bar Protection for Two Bus System (Part-1)
Motor Earth Fault Relay||Stabilizing Resistance Rs for Motor Earth Fault Protection
zhlédnutí 429Před 8 měsíci
Motor Earth Fault Relay||Stabilizing Resistance Rs for Motor Earth Fault Protection
Earth Fault Relay Setting|| Impact of wrong Coordination for Earth Fault in Distribution System
zhlédnutí 1,1KPřed 8 měsíci
Earth Fault Relay Setting|| Impact of wrong Coordination for Earth Fault in Distribution System
3-Phase Motor Protection|| Single Phase Preventer(SPP) for protection of Motor from phase Failure
zhlédnutí 329Před 9 měsíci
3-Phase Motor Protection|| Single Phase Preventer(SPP) for protection of Motor from phase Failure
Fault Level Calculation for 33 KV Bus || 3-Ph Symmetrical Fault
zhlédnutí 2,5KPřed 9 měsíci
Fault Level Calculation for 33 KV Bus || 3-Ph Symmetrical Fault
How Much Winding is Protected by Differential Relay for Fault in Star Side of the Transformer
zhlédnutí 1,2KPřed 9 měsíci
How Much Winding is Protected by Differential Relay for Fault in Star Side of the Transformer
How to Calculate Lightning Arrester (LA) Rating for different System Voltage
zhlédnutí 2,9KPřed 9 měsíci
How to Calculate Lightning Arrester (LA) Rating for different System Voltage
What is use of DC supply in this videos
Nice video thanks sir
Why we not consider transformer impedance in zone 2,as the first transformer at substation B comes in zone 2 area??
@@ImranKhan-nu6xw Zone -2 reach is considered to cover the impedance reach of far end busbar fault.
sir! what is MF=600? Where do you take MF=600 ?
@@cheokhanh1612 multiplication factor i.e. CT ratiox pt ratio
Admire sir can I get your contact number please
Sir, not clear explaination.
At start of video, u mentioned star side of star delta for can be used as return path for fault current. Normaly the star winding offer a high inductance so the impedance Z will be higher , so fault current will be lower which will not activate primary system protection. Earthing xmer will provide almost zero Z ,which will alow high enough current to activate protection.
Sir what happened when power export and import
Very helpful ❤
Zone 1B kya h plz description
Sir why (idiff-0.75)???...why 0.75?
👍🏻
Where did you Get the 110%?
sir Please share PPT or PDF
Your explanation is amazing.thank you sir.
Thanks Sir 👍
Weight and mass are different. Don't mix them up. Otherwise excellent explanation. Thank you.
How did we take X/R for Source and Transformer?
Can you provide the mentioned excel sheet? Thanks
Sir, Could u explain me how to calculate the corrected impedance voltage at rated current as shown in the above table. Thank u sir
Excellent how about thee zero sequence impedance calculation
Excellent.
Sir, Which make DC selection switch available in the market
Kindly share the PDF of all
please make video on various relays 50, 50N, 51, 51N and their settings. How are they selected for various applications. Is there is standard list? please clarify
sir, how did you take primary fault current as 1/4th of the secondary current. How did we get 1.09375 kA Please clarify
i was always looking forward to such a video. Great job. Thank you
Please make video also in hindi language
Sir i check 24 voltage DC our substation.i find out that positive to Earth 26voltag and earth to negitive zero potionia what is fault in system.
@@parmodyadav9966 it is negative earth fault
@@relayprotectionelectrical sir I have used vcb Earth That is right or wrong
Thank you Sir I have question: Is there equation between time multiplier and operate time? What is time dial ? Thank you
How we select the tripping time for 300 to 350ms we have any standard or it is in some practice.
Sir Hindi me hone se accha hota
Nice sir ,carry forward distance protection in next video ❤
Very good. Thanks 👍
Great job
Great info. I have a question. If external ct ratio is 180/1 and external pt ratio is 22000/110, meter ct ratio is -/5 and pt ratio is -/110. Is it possible to have such connection? If yes, then what will be the multiplying factor in that case and if no, please share the reason why?
Accuracy problem will be there as meter CT is 5 A and you are going to connect meter from CT secondary of 1 A.
@@relayprotectionelectrical thanks for replying 🙏 How much difference in reading should we expect? At present we are using such set up in one of our feeders and taking readings on that basis. As you’re saying there will be accuracy issues, is there a way to evaluate how much difference in readings are we talking about? In the above case we are using MF as 36000
Great information. If two phases are reversed then it will be -E/3 right?
kon mi jmr
U ARE WRONG. if the measured voltage drop is 330v, how can be the %age voltage drop is 10%. Please answer
Thank you for your comment and watching the video so deeply. Yes you are absolutely right. It shall be 3.3 kV so that PI shall be 10%.
The results mentioned in table are according to which standard? Thanks
Power for all 3phases or single phase?
Three phase
Sir very good video, thanks
Most welcome
R & Y phase will carry 54 A, how? R is shorted to earth. Will it be R & Y or Y & B? In your previous differential stability test video I(LV) = 93.31A. Please clarify....
Superb sir please tell me about as differential ct polarity
thank u sharing ..plz mention transformer vector group and rating , voltage ratio. suppose if trafo is DYn1 vector group then connection type 1&2 are in relay settings?
(330/33000)*100=1% not 10%
Which applications used reverse polarity CT's
This video available in Hindi
Very good explanation Thanks
Very good. Thanks 🙏
thank you www.udemy.com/course/protection-used-for-power-transformer/?couponCode=931DB6D9C361B37E48B6