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Month: December 2022

VIDEO 174 – NEUTRAL CURRENTS IN 3 PHASE SYSTEMS – WHERE DO THEY GO TO – WHY ARE THEY DIFFERENT TO SINGLE PHASE?

Posted on December 29, 2022

To view this video, NEUTRAL CURRENTS IN 3 PHASE SYSTEMS, click on the link below https://www.youtube.com/watch?v=zlHbsT4bhR8 At LearnElectrics we have often been asked about neutral currents in three phase systems and how they appear to differ from single phase systems. Examples of questions have included … In a balanced 3 phase system, why are there…

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VIDEO 173 – PFC TESTING – PROSPECTIVE FAULT CURRENT- DIFFERENCES BETWEEN SINGLE PHASE AND THREE PHASE METHODS

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To view this video, PFC TESTING, click on the link below https://www.youtube.com/watch?v=vzgJobigpg0 In this LearnElectrics video we will look at the differences between the single phase and three phase testing of prospective fault current. We are frequently asked questions about the differences and they have included things like … What is PFC? Is PEFC the…

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VIDEO 172 – 2 WAY AND INTERMEDIATE LIGHTING – 2 PLATE AND 3 PLATE DIFFERENCES WITH EASY TO FOLLOW DRAWINGS

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To view this video, 2 WAY AND INTERMEDIATE LIGHTING, click on the link below https://www.youtube.com/watch?v=IGEs5ZZqZx0 In this LearnElectrics video we will look a little deeper into lighting circuits and compare the differences between two common wiring styles. Some recent questions about lighting have included … How do we connect the wiring for 2 way lighting…

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VIDEO 171 – R1 AND R2 – CAN I FIND R1 IF I ONLY KNOW R1+R2 – WHAT ARE THE RING AND RADIAL CIRCUIT DIFFERENCES

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To view this video, CAN I FIND R1, click on the link below https://www.youtube.com/watch?v=TXDQkk4VTGA In this video from LearnElectrics we look at how we can find R1 for a circuit given minimal information; and show just what the differences in R1 and R2 are in Ring and Radial circuits. We’ve had several requests from people…

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