Skip to main content

Questions tagged [panel]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
0 votes
1 answer
26 views

6V 3W solar panel and to charge phone through a DC converter XL6009E1 via a 12V 2A car charger [closed]

I have a 6V 3W solar panel and want to charge phone with it, i have tried a dc converter XL6009E1 via a 12V 2A car charger it shows charging but battery power did not increase I am scared of using the ...
Godfrey DonShawsky's user avatar
0 votes
0 answers
31 views

Small solar panel chip to charge a LiPo

I've found this small solar panel: https://www.digikey.co.uk/en/products/detail/anysolar-ltd/KXOB25-02X8F-TB/9990458 I see that output can go up to 4.5v and 5mA . That's sounds huge for me BUT because ...
Singed's user avatar
  • 457
0 votes
2 answers
82 views

What is voltage in I-V curve of a solar cell?

I-V curve of a solar cell is given for a given irradiance and temperature. Given a constant irradiance and temperature, why is the voltage changing in an I-V curve? Is the voltage something that we ...
Nikhil Kumar's user avatar
1 vote
2 answers
279 views

How long would it take a 400 W solar panel to charge a 28 kWh EV battery?

I'm located in The Gambia which is almost on the equator. We get over 11 hours of sunlight on Dec. 21st. Being a tiny country, daily travel is minimal, at most, maybe 28 km. If I place a 400 watt ...
sarrfox's user avatar
  • 13
-1 votes
1 answer
62 views

Can I add a 20A breaker to this electrical panel [closed]

I replaced the oven at my small condo (600 sqft). Oven is 2300 watts/ 9.5 A. It needs a 20A breaker. The panel has a few empty slots. Question: What's the best way to confirm that the panel can handle ...
SamuraiJack's user avatar
0 votes
1 answer
316 views

In an electrical panel, should a fuse holder come before the main contactor or it should come after?

I am designing a panel and would like to include a main contactor that switches off the entire panel on pressing the emergency stop button. There's an MCCB at this panel's input. However, I would like ...
Curiousone's user avatar
2 votes
1 answer
89 views

What is meant by the statement "variation at all measured points (including the ambient air temperature) does not exceed 1K/h"?

I am trying to understand a temperature rise test that is being conducted over a switchboard. The test conforms to IEC 61439-1. The clause 10.10.2.3.1 (Method of test - General) regarding the ...
DaSnipeKid's user avatar
2 votes
1 answer
137 views

I have 2 LCD panels - I'm trying to find out what electronics I need to set them up

I have two LCD panels that I want to use, but they don't have any electronics, case or anything with them (I got them from a computer shop that was shutting down). I need to figure out what PCB they ...
Nathan Whyte's user avatar
2 votes
1 answer
2k views

ANSI color standard for panels

Enclosures for Electrical Equipment & Panels at Electrical Rooms, Substations and other facilities are typically "industrial grey" colored. From questions like in mikeholt.com, se.com, ...
Brethlosze's user avatar
  • 1,427
0 votes
2 answers
924 views

24 V solar panel gives half the current of a 12 V panel [closed]

I look at solar panels for sale and notice that a 12v 250w panel gives 13.9amps while a 24v 250w gives only 6.6amp. which is why I asked if the 24v would charge my batteries as efficiently as the 12v. ...
JohnEltin's user avatar
1 vote
1 answer
80 views

Solar panel battery charger

I am looking for a way to power my webcam without having to use a long extension cord outside. I have come up with this circuit. Will it work? Can I improve it? Thanks in advance for the help!
Gelato's user avatar
  • 13
-1 votes
2 answers
116 views

How can water create a good ground reference?

In the 240V Single Phase panel in my home the ground bus is tied to a water line. My concern is water flows via a non-metallic pipe from the artesian well to a holding tank. A copper line connects the ...
Steven K7FAQ's user avatar
-1 votes
1 answer
75 views

Efficiency of a solar cell

I am from Colombia where recently was opened a solar park with a power of 61 MW link to news I consulted the Solar radiation in the area and has a value of 5 kWh/m², the solar cell efficiency is 20%, ...
TTT2's user avatar
  • 105
-1 votes
1 answer
97 views

What happens inside this duct?

At the top are wires coming out of a terminal block. On the left are gray tubes running into a cabinet full of sensors, motors, etc. Are these gray tubes conduits or cables? What is happening at the ...
DJG's user avatar
  • 165
0 votes
2 answers
104 views

How to describe the basic cabling used in industrial electrical panels?

How would the basic cabling in electrical panels be technically described (in order to make a purchase, for example?) Does it have a certain number of cores? I'm talking about the kind of cabling you ...
DJG's user avatar
  • 165
2 votes
2 answers
2k views

Voltage present, even without fuse in DC distribution panel

I have an AC and DC distribution panel installed in my cargo trailer. And I think I have an issue with my DC side of the panel. This is my first electrical work of any sort and thought it was going ...
Jay Cummins's user avatar
1 vote
0 answers
60 views

Are PV panels convenient without incentives?

I finally finished a project in which I designed a 55 kW of PV system for a 50 kW load and I finally calculate costs and revenues over 20 years. I found that with a 25% of incentives for the cost of ...
Samuele Benito Di Gioia's user avatar
0 votes
0 answers
642 views

How to correctly bond two 200 amp main panels on a 400 amp service

I currently have a 200 amp service with a single 200 amp meter. That meter feeds a 200 amp main panel on the other side of the wall that the meter is mounted to (think standard residential ...
ubiquibacon's user avatar
4 votes
1 answer
177 views

I need help with SCCR

I work as and E/E intern for a industrial panel company. A customer wants a 30kA SCCR panel. The input power is 3 phase 460V, an unknown distance from the main panel in the customer factory. Inside ...
Jeff A's user avatar
  • 73
1 vote
2 answers
561 views

How are PCBs with castellated pins arranged in a panel?

Can anyone please describe to me how PCBs with castellated pins are arranged in a panel. My understanding is that castellated pins are formed by drilling the edge of a PCB then plating, similar to a ...
pcbguy's user avatar
  • 83
0 votes
2 answers
71 views

Can metal electrical panels have a non-rectangular or squared shape?

Standard metal electrical distribution panels are rectangular or square shaped boxes. Is there any standard - IEC, NEC, etc.- contraindicating the manufacturing of a custom shaped box for an ...
Brethlosze's user avatar
  • 1,427
0 votes
0 answers
624 views

Where do I measure the Amp draw of my motor which is connected to a centrifugal fan?

I just started my job as an apprentice technician. For the longest time, my supervisor have always been measuring the amp draws of my motor from the outgoing cable from the motor to the electric panel ...
Hanif Shidki's user avatar
1 vote
1 answer
144 views

What does this switch do?

Also, what is that circuit element symbol (an arrow leaving a rectangle) called, in the diagram next to the switch?
Victoria's user avatar
0 votes
2 answers
143 views

Grounding Distribution Panel Earth Busbar using 'split' cable?

I'm pre-wiring a distribution panel for future installation into my retirement home in the Philippines. I've read that grounding the DP to an earth rod or equivalent should require a minimum 6AWG/...
williamc's user avatar
0 votes
2 answers
687 views

Can I use a DC battery cable rated at 600 A to connect a 63 A main AC breaker to a 40 A RCCB in my distribution panel?

I've read that for low-voltage (less than 400 V) applications, the main difference between DC and AC wire is basically in the (temperature) rating of the cable sheath. If this is true, then the ...
williamc's user avatar
0 votes
1 answer
1k views

how long will a 12V 5W solar panel take to charge a 12V 1.3Ah `lead acid battery

i wanted to know how long will it take for the 12V 5W solar panel to charge a 12V 1.3Ah battery. and also whats the maximum voltage that the panel can produce
Bhavik Khatri's user avatar
0 votes
1 answer
165 views

Charge 12 V, 1.3 Ah lead acid battery via 12 V, 5 watt solar panel

Can someone explain me the below circuit which is used to charge 12 V 1.3 Ah lead acid battery via 12 V, 5 watt solar panel? The circuit is shown below I need to know what is happening in this ...
Bhavik Khatri's user avatar
1 vote
1 answer
106 views

How can I make a 16x16 led pannel without losing the brightness intensity of each single led?

So, this is my first question here in this forum and I don't know if I'm doing this right. Then in fisrt place, I'd like to apologize myself if I'm doing something wrong or if my english is a little ...
Lucas Sievers's user avatar
0 votes
1 answer
487 views

overcharging issues in MPPT solar controller with NO output leads

My MPPT solar controller has no output leads. It contains only the (+,-)leads for battery and solar panel. Input is from the solar panel and output goes to battery.Therefore, I have to connect my load ...
ALI KHAN's user avatar
0 votes
1 answer
38 views

Solar car ventilation system

I am a mechanical engineering student and for my final project I am designing a solar car ventilation system so I need to know how much power the air conditioner of a car (Mazda Lantis 323 2001) fan ...
Omer Maman's user avatar
-2 votes
1 answer
282 views

How to reduce to 10 V from a 44 V, 18 A solar panel supply?

I get 44 volts, 18 amps and 700 watts from two solar panels. I want to reduce approx 10 volts to run my inverter directly on solar panels instead of batteries during the daytime.
Sunil M's user avatar
1 vote
1 answer
874 views

What is the type and name of this 15-pin connector pair?

This connector is suited on a Sony car stereo front panel. Searched the net however could not find anything. I love to extend the connection with a sort of cable so it possible to fit the front panel ...
Codebeat's user avatar
  • 1,367
2 votes
1 answer
488 views

Storing solar panels in direct sun

What is the best way to store solar panels when not hooked to a charge controller in direct sun? I was thinking about hooking each panels pos and neg mc4 connectors to itself so it will not be ...
rick's user avatar
  • 21
0 votes
2 answers
59 views

Can I use a 32x6mm catridge fuse with a fuse holder specified at 38x10mm

This is my first time incorporating fuses in my project. I am trying to source for some DIN rail mount fuse holders and the accompanying cartridge fuses. After much searching, I have found the fuse I ...
Cerezo's user avatar
  • 314
1 vote
1 answer
1k views

Problem with Proteus Simulation of Buck Boost Converter - please help

I built the attached circuit, I was simulating a solar panel buck boost voltage regulator to regulate the output voltage. The problem is that while it works and shows the appropriate output. It doesn'...
miyoshi23's user avatar
0 votes
0 answers
142 views

Protection Devices in DC ciruits

I am putting together a design for a custom Electrical panel. The panel consists of mainly DC powered components (Sensors, Controllers). Components are to be mechanically positioned using a DIN rail. ...
Cerezo's user avatar
  • 314
0 votes
1 answer
86 views

Incorrect gerber rout output in Altium

I tried to get a panelized PCB from Altium using the embedded array option from the PCB Doc file. But, I get a continuous board edge around each of the PCB replicas: it would actually need mouse bites ...
Dev San's user avatar
3 votes
1 answer
801 views

Is it necessary to provide surge suppressor to every control relay?

We have a motor control centre installed in garage for a commercial outlet. The MCC has a SMC-Flex ( Low voltage soft starter). The control relays (700 HA33) are connected to the SMC control ...
DaSnipeKid's user avatar
0 votes
0 answers
42 views

Durable, UV-resistant labeling for electronics enclosure

I'm not sure if this is the right forum for this question. I'm asking here in hopes that someone has dealt with this. If this is the wrong forum, please do not vote me down. If necessary, I'll simply ...
dcorsello's user avatar
  • 321
-1 votes
1 answer
60 views

How to compute for bolted short circuit current taking conductor impedance into account

There is 23 feet of AWG 1 conductor from the open delta transformers to the service panel where the bolted short circuit and arc flash occurred. How do you include the impedance of the conductor with ...
Jtl's user avatar
  • 847
0 votes
4 answers
1k views

Was this caused by arc flash or just short circuit without any arc flash?

Can the following be caused by short circuit without any arc flash? There was an initial short between lugs and chassis. Did arc flash occur that caused the lugs to melt. Or can it melt just by the ...
Jtl's user avatar
  • 847
2 votes
1 answer
1k views

Footprint panel is grayed on Altium Designer PCB

This is a project I imported from Eagle (not so bad by the way). I resolved all schematic compilation errors. But now I am facing some small issues in the PCB part: On the properties panel when I ...
Dony's user avatar
  • 116
0 votes
1 answer
57 views

Solar variation tolerance for a solar panel

How to estimate average variation of input solar radiation that would be tolerable for a given solar panel? On what parameters will it depend?
Megh's user avatar
  • 11
2 votes
3 answers
5k views

Necessary voltage to charge NiMH using Solar Panel

I'm trying to understand which voltage I need to charge my NiMH batteries so I can purchase the components to do this. Actually I have 2x AA Ni-MH 1.2 V 1900 mAh and 4x Solar Panel 2 V 220 mA (0.44 W)....
user3649959's user avatar
0 votes
2 answers
208 views

how to mount a flat keypad on a panel

Flat Keypad or Membrane Keypads are cheap and beautiful Keyboad that can be used in systems. but the question is how can they be mounted in a box or panel?
david's user avatar
  • 103
1 vote
3 answers
1k views

Powering a PC monitor with batteries

So, this is where I am at currently( no pun intended). I am assuming that with an inverter for both components and 3 - 4-18650 cells in series - in parallel rated at 4800mAh would be good enough? Ill ...
Alex Gasper's user avatar
3 votes
0 answers
107 views

New DIY project try to understand MPPT [closed]

I got used battery MODULE with the next specs "40V 18.4AH 736WH build of ninety six A123-26650 LITHIUM LIFEPO4 cell " Cell specs: Nominal Capacity: 2300mAh Voltage(nominal,V): 3.3V Internal ...
Hosamsad's user avatar
2 votes
1 answer
2k views

Matching LCD controllers to LCD compatible panels

Over the years, I've accumulated numerous LCD panels and controller boards salvaged from TVs, Monitors, Cell Phones, digital picture frames, GPS devices and tablets. I would like to reuse the panels ...
user148298's user avatar
  • 2,397
0 votes
1 answer
806 views

I need help connecting 2 solar panels in paralel

I'm new to Electronics but I love solar panels and hiking. So, I bought 2 of these and one of these and I connected them. I cut 2 USB Cables, connected + with + and - with - from each Cable and ...
aninteresteduser's user avatar
0 votes
0 answers
90 views

Solar Panel Voltage vs. Consumer Solar Generator

I have a 235 W solar panel that I wish to take with me on camping trips. I’m looking at getting a Goal Zero “solar generator” product to store the energy from the panel, specifically the lithium-ion ...
Dustin Trombly's user avatar