parallel

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  1. G

    Issue with r2 reading on ring final circuit due to parallel paths

    Good evening, Been on and off on this project, they’re all brand new flats and now I’ve come back to carry out EIC tests. It’s all first fixed in steel conduit and have stud frames with caddy clips on, so naturally been told to earth back boxes. Before I left I mentioned to the QS running...
  2. A

    3ph Parallel Thyristor Rectifier Not Sharing Current

    Good afternoon all, I have a problem which has really melted my brain this afternoon and I am hoping someone can offer some insight. My company had recently designed and built a three phase thyristor bridge rectifier for our customer. One of our customers requests was that each thyristor had...
  3. F

    wiring t-plug 58ah 1000w 48v batteries in parallel

    I am wondering how I would wire two 1000w 48v batteries in parallel. They have "t-plugs" to connect them to a controller but I'm not sure how I could connect them to 1 t-plug so they can be connected to a controller. just to clarify this is for an e-bike build, I need to wire them in parallel...
  4. S

    Strange things happen with two PIRs in parallel

    I needed to illuminate our dark side walk at the house. I have used two PIRs wired in parallel which switch four LED lights. The idea is no matter which side of the walk you start at, you'll always set one PIR off and have light. This works, but randomly the MCB of the circuit triggers. I...
  5. Charlie_Don't_Surf

    Flummoxed by a basic parallel resistance question

    I normally bash through these worksheets quite quickly (or at least, I rarely get one like this which I just can't suss out), but this one has got me stumped. Yes, I've googled it and youtubed it for a while (although usually I only really resort to that when I don't have the knowledge to work...
  6. D

    Converting 3-Way to Parallel

    I have a couple of lights on a 3-way circuit and I want to rewire them with motion sensor outlets and have them in parallel. This way, if either sensor activates, the light will be on. I am seeking guidance on the right way to do this. I have read a bit on 3-way wiring and it looks like there...
  7. Mark42

    Best way to parallel 25mm/35mm singles

    Hi I'm installing two new sub-mains. I need to parallel some of the supply cables. It's the main incomer in 5 x 25mm, with 5 x outgoing 25mm tails to the adjacent DB, and an outgoing 4-core 35mm SWA going off to another building a long way away. I will terminate in a 300 x 300 x 75mm metal...
  8. Z

    Parallel wiring for RV LED

    I am going to wire (4) 6W LED lights in parallel in the ceiling panel of my van conversion. Rather than run the wire from light to light and splicing in wires as reaches a light, I thought I would buy a couple of 5-wire Wago connectors and use them a mini-bus bars. Just bring the single 18AWG...
  9. R

    Light bulbs in series vs parallel circuits in home.

    Hi, I had a question in my head that turned out to two and then BANG im confused. I need help with calculation here and explanation to get this right. If i want to build a lamp with 20 light bulbs in a 230V home. Each light bulb is 2watt. How much current will they take when they are in...
  10. A

    Is it OK to connect a PIR in parallel with a wall switch?

    Hi, I want to add a PIR to a porch light but I want the original light switch to still behave as it always has. i.e. both the light switch and the PIR can switch on the light. The diagram shows what I want to do. The circuit is pretty simple and will work as I want. My question is this... Is it...
  11. B

    Generator tripping when parallel generators taken offline

    Hi, Hope you’re keeping well. Currently have an issue onbaord with regards to one of generators tripping. The generator is capable of taking full load when running in parallel with other generators, but when power demand drops and they go offline the faulty generator will trip causing a...
  12. GTR450

    Question about discharging nimh cells in parallel

    Hi, I have question about paralallel discharging NiMH modules. I have 40 modules and one modul consist of 6 x 1.2V cell = So nominal capacity is 7.2V. These modules are in car connected in series. But I replaced 15 bad cells and now I need balance them. In one thread I have got good advices but...
  13. GTR450

    Parallel nimh cells connection

    Hello I have question about connect to 40 nimh cells with 8.4 - 8.7 Volts parallel. I need balance whole battery pack for hybrid car. Is it safe to connect 40 cells parallel and wait? Every cell has more than 5000mAh capacity, but I need the same voltage. One more question is if I can discharge...
  14. O

    What kind of Schottky diode should I use to parallel wire 9 VOLT batteries together?

    I need help knowing what kind of schottky diode to use to wire parallel 9 volt batteries to make a really long lasting battery. I want to wire together like 9 of them. is it possible?
  15. T

    DC transformers in parallel

    Hi Guys and Girls, First off: I am very new to electrical stuff. Right now I'm running my first ever project containing electrical components. So sorry in advance for very wrong terminology and schematics:) please bear with me. I'm having a Finder Controller (F) to control my "work circuits"...
  16. E

    Paralleling 8-gauge wires to a 220V Subpanel for Tankless Water Heater

    Hello, Question is regarding a recently purchased property in Central Texas, which includes a 27KW tankless electric water heater. It is four years old and working fine. What the prior owner installed is surely not code compliant, but the county does not require permitting for "renovations...
  17. SparkyKris88

    Running Parallel Cables for 400A Sub Main

    Hi All, I’m after some advice. I’ll cut to the chase but I can give more detail if needed. A 400A sub main supply needs to be ran 100m, a pretty direct route on ladder tray. Instead of one large cable (I think it’s 240mm), I was looking into running parallel cables instead. I’ve not done this...
  18. E

    Parallel earth paths and design

    Christmas crew, hope you all enjoying yourselfs. Ive been reading a thread on another forum about parallel paths. In certain installations, namely industrial/ some commercial, where the use of metal conduit, SWA, and steel framed building prevails. In such installs there is really is no way to...
  19. G100917

    Flourescent lights parallel circuit not very bright

    Hi all, I've wired up 10 flourescent lights in a parallel circuit for a light box as in the picture. Each bulb is 36w and 3250 lumens. The lights are connected to a switch and a plug with a 3a fuse using 1.5mm round cable. When I turn the lights on they don't seem anywhere near 32500 lumens...
  20. D

    WS2812B led strips, Series or parallel?

    I have tried to find info on connecting WS2812B led strips Dat/signal line without any luck. I wondered if it was ok to connect the dat/signal line in parallel to 2 existing led strips from the controller or does it have to be in series?
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