RCCB / RCD - Hangpa ni kenai ke tak kenai rating dia?

RCCB ni Residual Current Circuit Breaker atau nama am RCD - Residual Current Device. Dalam BM ... kita panggil Peranti Arus Bocor Ke Bumi.

Dulu-dulu, la ni pun ada lagi, orang duk panggil ELCB atau Earth Leakage Circuit Breaker. Tapi jenis ELCB ni sebenarnya ni orang pakai dulu-dulu dan ia adalah jenis Voltage Operated. Lain dari RCD yang mana dia adalah jenis Residual Current Operated. Jika nak tahu lebih lanjut apa beza ELCB dan RCD ni boleh ke pautan ni https://www.youtube.com/watch?v=Wo7IUzUT-rU

Harap hangpa semua ni panggil la RCD ke RCCB (Residual Current Operated). Jangan tersilap pula dengan ELCB (Voltage Operated)

Earth Leakage Circuit Breaker, Residual Current Device, Earth Leakage Relay & Earth Fault Relay

 Title: ELCB - RCD - ELR - EFR

#################### Video Link: https://youtu.be/Wo7IUzUT-rU

Technical sharing on the following items: 1. ELCB - Earth Leakage Circuit Breaker 2. RCD - Residual Current Device 3. ELR - Earth Leakage Relay 4. EFR - Earth Fault Relay

Cara - Cara Protection System Mengesan Earth Fault / Earth Fault Detection Methods

 ### VIDEO ###

BAHASA MELAYU Link: https://youtu.be/92r1asm2bEc

ENGLISH Link: https://youtu.be/moV_wr9y5Tk

### VIDEO ### Perkongsian mengenai cara-cara Earth Fault dikesan dalam Protection System: 1. Residual Connection Current Transformers 2. Standby Earth Fault - Neutral to Earthing CT Connection 3. Core Balance CT or Zero Sequence CT 4. Metal Clad Frame Leakage Connection 5. Restricted Earth Fault Connection (REF) 6. Ground Fault or Neutral Displacement Over Voltage (59N) ### NOTA FREE/ FREE NOTES ### Link: https://shorturl.at/AFQ89 CORRECTION IN THE NOTES: For the last type of protection on 59N, there is a formula "Rp = Rs x N2". Whereby the 2 is supposed to be to the power of 2 or squared. ### NOTA FREE ###

Protection System 17.2 Short Circuit Exercise Example (By CoEE)

Technical sharing on Electrical Protection System: 17.2 Short Circuit Exercise Example by Crux of Electrical Engineering, Malaysia. This topic will cover introduction on:

- Exercise for Per Unit Method - Exercise for MVA (ABC) Method

###VIDEO### Yotube video link: https://youtu.be/7oGaAUNTT70 ###Materials### SC Calculation pdf Excel file link Presentation dan komentar mix in English dan Bahasa Melayu. This video is on Chapter 17 (out of 17 Chapters)

Protection System 17.1 Short Ciruit Calculation (By CoEE)

 Technical sharing on Electrical Protection System: 17.1 Short Circuit Calculation by Crux of Electrical Engineering, Malaysia. This topic will cover introduction on:

- Per Unit Method - MVA (ABC) Method

###VIDEO### Yotube video link: https://youtu.be/kU6IwWauugg ###Materials### SC Calculation pdf Excel file link Presentation dan komentar mix in English dan Bahasa Melayu.

This video is on Chapter 17 (out of 17 Chapters)

Protection System 15 Capacitor Bank Protection (By CoEE)

 Technical sharing on Electrical Protection System: 15 Capacitor Bank Protection by Crux of Electrical Engineering, Malaysia. This topic will cover introduction on:

- Capacitor Problems - Capacitor Rating - Overcurrent - Unbalance Protection

Yotube video link: https://youtu.be/FHLeM1wUV94 Presentation dan komentar mix in English dan Bahasa Melayu. This video is on Chapter 15 (out of 17 Chapters)

Protection System 14 Generator Protection (By CoEE)

Technical sharing on Electrical Protection System: 14 Generator Protection by Crux of Electrical Engineering, Malaysia. This topic will cover introduction on:

- Generator Earthing - OC (51, 51V), Loss of Excitation (40), Negative Sequence (46), Reverse Power (32), Differential (87G) and Frequency Protection (81O, 81U)

Yotube video link: https://youtu.be/-ubCwPEn10A Presentation dan komentar mix in English dan Bahasa Melayu. This video is on Chaper 14 (out of 17 Chapters)

Protection System 13 Motor Protection (By CoEE)

Technical sharing on Electrical Protection System: 13 Motor Protection by Crux of Electrical Engineering, Malaysia. This topic will cover on:

- Overload, Negative sequence, etc. - Short Circuit (by Fuse or Circuit Breaker) - Discrimination for fuse/ circuit breaker with respect to contactor short circuit rating

Presentation dan komentar mix in English dan Bahasa Melayu. Yotube link: https://youtu.be/hI7xtujW7Xo This video is on Chaper 13 (out of 17 Chapters)

Protection System 12 Cable Protection (By CoEE)

Peace be upon all of us

Perkongsian Electrical Protection System: 12 Cable Protection by Crux of Electrical Engineering, Malaysia.

Video akan merangkumi:
- Cable OCEF and Pilot Wire

Here's the Video Link: https://youtu.be/pmCEC_UoN18
(Siri ke-12 dari 17)

#cruxofelectricalengineering #cruxofee #electricalengineering #electricaltraining #Malaysia #protectionrelay #BahasaMalaysia #ocef #overcurrent #earthfault #cable #cableprotection

Thank you for listening. Please don’t forget to:

- Youtube Channel: Crux of EE @ https://bit.ly/2wwtsb8
- Facebook: https://www.facebook.com/cruxofee
- Web: www.cruxofee.com
- Instagram: @cruxofee
- Any questions, you can email or comment below

Crux of Electrical Engineering
E: cruxofee@gmail.com

Protection System 09A Understanding Electrical Drawings - SIPROTEC 7SJ621 (by CoEE)

Technical sharing on Electrical Protection System: 09A Understanding Electrical Drawings - SIPROTEC 7SJ621 by Crux of Electrical Engineering, Malaysia. NOTE: Please download the sample schematics at https://shorturl.at/pvBD7 to be referred to during the course of this presentation. Presentation dan komentar mix in English dan Bahasa Melayu. Yotube link: https://youtu.be/PxGKi1z4co4 This video is on 09A Understanding Electrical Drawings - SIPROTEC 7SJ621 which is one the following covered topics: 01 Introduction 02 CT and VT - Part 2 - On VT 03 Relay Classification 04 Grandfather of all Protection – OCEF 05 Directional OC 06 Differential Protection 07 Types of System Earthing 08 Making sure the right relay operates 08A What To Do After Relay Trips 09 Understanding the Drawings ============ 09A Understanding Electrical Drawings - SIPROTEC 7SJ621 ============ 10 CB Trip Coil – How To Check

Protection System - 06 Differential Protection (By CoEE)

Technical sharing on Electrical Protection System: 06 Differential Protection by Crux of Electrical Engineering, Malaysia.

Presentation dan komentar dalam Bahasa Malaysia (Malay Language) 

Yotube link: https://youtu.be/o47roE7J9bE 

This video is on 06 Differential Protection which is one the following covered topics: 

01 Introduction 

02 CT and VT

03 Relay Classification 

04 Grandfather of all Protection – OCEF 

05 Directional OC 

============ 

06 Differential Protection

============ 

07 Types of System Earthing

Protection System - 03 Relay Classification (By CoEE)

Technical sharing on Electrical Protection System: Relay Classification by Crux of Electrical Engineering, Malaysia. 

Presentation dan komentar dalam Bahasa Malaysia (Malay Language) 

Yotube link: https://youtu.be/idHfBP12eiw 

This video is on 03 Relay Classification, which is one the following covered topics: 

01 Introduction 

02 CT and VT

============ 

03 Relay Classification 

============ 

04 Grandfather of all Protection – OCEF 

05 Directional OC

06 Differential Protection 

07 Types of System Earthing 

How To Check IDMT Trip Time (Spot Check) During Relay Testing

Technical sharing on How To Check IDMT Relay Calibration by Crux of Electrical Engineering, Malaysia. 

Link to youtube video: https://www.youtube.com/watch?v=C76d5dTxbGc

Material in English tapi presentation dan komentar dalam Bahasa Malaysia (Malay Language) 

PDF: https://drive.google.com/open?id=1Xb6... 

Excel: https://drive.google.com/open?id=1R0N... 

The topics are on: 

1. Explanation on typical OCEF Relay Calibration report 

2. Introduction to IDMT