DGZDW Microcomputer-controlled DC Power Panel

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

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The DC power supply panel serves in power generation plants and substations to function as power supply needed for opening & closing of high-voltage switch in case of normal operation or emergency state relaying protection automatic protection emergency lighting and sound project. It also serves as power supply in such occasions as metallurgical industry railway mine petrochemical industry post telecom hospital bank hotel tall building and computer network etc.

1. Input voltage: AC380V ±15%;50HZ±5%；three-phase four wire,two way put in,
2. Output voltage: DC220V,DC110V,DC48V;DC24V.
3. Output voltage: controled busbar (KM)5~200A,closing busbar(HM)5~3000A 4. charge storage capacity (AH): 10~ 3000;
5. regulation accuracy: ≤ 0.5%; steady flow coefficient: ≤ 0.5%;
6. ripple: ≤ 0.5%; system efficiency: ≥ 92%;
7. Noise: ≤ 50dB;
8. Dielectric strength: 2000V/min no flashover and breakdown

Q:CFL LED luminaires: E-Bay -Business Industrial-Electrical Test Equipment

Q:Ever since I was a little kid I could tell when there is a T.V on in a house when I walk by. I get this feeling inside like I can sense the signal or something with my brain. When I walk closer to the T.V the feeling gets stronger. If there is a T.V left on in my house with no sound or picture playing, I am still able to sense that the T.V was left on, and pinpoint the exact room its in without even going inside. Does this happen to anyone else?: I can, too. I just don't know why (I assume it's radio waves). I was in class once (science) during high school and the television behind me was completely black and not making noise, but I could feel it was on. My teacher thought she turned it off with the remote after the morning broadcast, but I could still feel it was on. So when she came over near my side of the room I told her it was still on, so she pushed the off button on the side and it turned off. She asked me how I knew that- if I saw it or heard it. I tried to explain I could FEEL it was on and she looked at me as if I was crazy. So I've always been confused why can some people feel it and some can't? I can feel security tvs at Walmart as well, and pin point their location from the feeling. Anyway, after I tried to explain that to a couple people (friends, family) and everyone gave me weird looks I just decided to keep it to myself.

Q:can an odd electrical field produce a link with the energy of those said to be at rest?can a electrical field be contained a directed within ones body.have you ever experienced truelly odd static or electrical fenomena around you?: Yes We are energy Every animal, plant and object is made of energy.

Q:1. diode2. converter3. transformer 4. mercury-arc rectifierpl provide with explanation: transformer

Q:i mean how much money does the electrical utility consider for load shedding (for 1kilo watt) in USA?: Load shedding doesn't cost the utility company anything. It saves them money when it prevents a system wide brown- or blackout. Load shedding means that the customers participate in a program to shut down some electrical loads in their individual buildings. This might happen whenever the utility grid is in danger of having to produce more electricity than the combined capacity of all the available generating equipment on the system. If there are any costs involved, it might be the lost revenue to the utility from the sales of electricity above the generating capacity or the lost production if one of the customers has to shut down revenue producing equipment.

Q:If I bring my laptop (North America 60Hz) and use it in Europe (50Hz), would it work properly?If so, does that mean my laptop/power cord has a frequency converter?: When traveling between countries, there are 3 considerations for electronic/electrical equipment. The plug The voltage The frequency Adapter plugs and voltage converters are easily available, either separately or as part of a kit. There are no frequency adapters. But that's not a problem. Frequency is only a consideration if you're operating motor-driven equipment, such as fans, compressors, vacuum cleaners, etc. Motor speed is dependent upon frquency and lower frequency causes them to run slower and build up more heat, eventually burning out. Your hair dryer, shaver, electric toothbrush, etc, is not so subject to damage because the motor is small and you only use it for short periods on occasional durations. Back to your computer; most electronic equipment must be supplied with AC power, but that power is converted inside the device by its power supply to a DC voltage. Such is the case with your computer. Even the motors, such as fans and drives, inside your computer are DC driven. Power supplies don't care about the difference between 50 - 60 hz and simply converts either one to 0 hz. Bottom line is that you do not have to worry about frequency for your computer in Europe. It's quite likely, though, that must make sure that you have the voltage converter OR that your computer is switchable for different countries.

Q:Hi, I have an interview for an electrical engineering position with my city water district. I have a power and drives background but I am pretty sure that they are not a utility company. What exactly do electrical engineers do at the water cleaning districts? I appreciate anything response I can get. Thanks in advance.: The water district is a public utility. If they did not need someone with your skills, they would not have asked you for an interview. They use a lot of pumps, motors, and other electrical equipment. good luck with your interview.

Q:Actually in position, we have provided shade for an electrical equipment but sun is hitting during morning and evening. Can it be called as a shaded area?: Outside ambient temperatures are always measured in the shade away from direct sunlight. If your equipment is seeing direct sunlight in normally convective air, then you should use an infared remote sensing thermometer to measure different points on the outside and the inside of the equipment (if possible) to determine the ambient temperature (when exposed to direct sunlight). Alternately, you could place a thermistor, thermocouple, RTD, or semiconductor temperature sensor inside the equipment (always in the shade) and run wire leads outside the equipment container, then measure ambient temperature inside the equipment with a meter on the outside. .

Q:Assuming that it is safe to do so as far as people not getting hurt, will it damage the electrical equipment?: Some appliances like for instance your computer require a shutdown routine in sequence to be happy. Your computer will complain and cry if you suddenly pull the power and the disk or data may be damaged by sudden disconnect but usually nothing major will happen except loss of your photo or video or term paper. most of the hardware must withstand sudden shutdown but it is not a good routine to practice.

Q:I suspect my house electrical ground isn't working and had suffered equipment loss due to loss thunder strike.: If the Lightning is hitting your house then you need to call in a profesional for insurance reasons. If it is hitting elsewhere and causing damage through you electrical lines or through your grounding system then you need to look into surge suppresion for your system.

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