Intelligent PLC Transformer Fan Control Box

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Intelligent PLC TransformerFan Control Box


Intelligent PLC Control Box forTransformer Fan is a new type intelligent transformer temperature controldevice equipped with Siemens S7200 PLC as the control center, has powerfulcontrol function, clear and concise wirings inside, and easy to operate andmaintain.

Traditional control box for transformer fans adopts time relay, motorprotector and etc to form required input and output signals, and achieves thecontrol function of fans by a combination of time relay and open-close contactpoint. This traditional control method is limited by the scope of timeadjustment, has lower accuracy of time adjusting, inflexible control logic, andcomplex electrical logic circuit, it is difficult to change and maintain infuture.

After using PLC as the control center, the simulating volume collectsthe temperature values from the temperature sensor of transformer, the fan canbe controlled to switch on/off by the output points of switching volume of PLCprogram control in accordance with the temperature range in PLC, the originalmechanical type time relay has replaced by the Timer in the PLC; the alarmcontact points of fan protector is also connected to the input port of PLCswitching quantities and is directly monitored by the PLC to protect all fans.

Even more importantly, PLC control system can control the fan oftransformer to rotate at regular time in accordance with the internal tuningtime, which not only meet air-cooling, but also effectively extend the fan’sservice life, and significantly reduce the operation failure rate of the fan.

PLC free port is made into 485 port, which follows the normal MODBUS agreementand can be used as RTU (Remote Transmission Unit) for the power system"four remote" control.


Structure

The product is composed of Siemens S7200 PLC (CPU+ module of simulatingvolume), intermediate relay, motor protector, temperature sensor, temperaturedisplay meter with signal output, housing and etc.


Characteristic

▲ PLC modularizationconfiguration is flexible, which can be made upon request.

▲ The internal programdesign of PLC is flexible and powerful, it completely replaces the originalmechanical time relay, the operation is more credibility.

▲ The control time isflexible and adjustable to meet the special requirement of the users.
▲ Wring is simple and clear and easy to install, debug and maintain.
▲Medium load fan rotation can be realized, which can extend the service life offan and reduce the fault rate of fan.
▲Provide standard 485 interface and communication agreement to meet therequirement of power automatic in future.


Application

The product is suitable for multi fan control system for four pathways andabove, especially for the situation with digital communication.




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You too eh? I've had to get 2 new tvs, a new computer, had my xbox 360 fixed twice, 2 new mp3 players, a new dvd player and a new alarm clock in the last 8 months. The electronics fairy has curseth me.
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Gotta say yes. You can work with energy - moving, purposing. It's been proposed that houses with poltergeist (noisy ghost) activity have a significant source of power nearby and someone in the house is acting as a channel between the energy and the ghost. Some folks have trouble wearing watches, or have electrical equipment go haywire around them.
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May 19 2013 Ronald Weinland (The Church of God, Preparing for the Kingdom of God) is predicting the return of Jesus Christ. The Church of God is another one of those weird cults that America produces so many of. Weinland predicted Jesus would return in 2011 and May 27, 2012 too, so he sounds a bit like Harold Camping did. Weinland will start serving a 31/2 year sentence (42 months) for tax evasion on January 2, 2013.
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caveate emperitorlet the buyer beware. it not illegal to non disclose faults, but it is a dick thing to do.
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Is this pre school? were you taught to worship mother earth at school? are you just a Al Gore nut? By the way Al Gore omitted he was WRONG last week, about global warming.
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ecologically okorder
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You should be concerned about protecting yourself,not your toys.A well constructed shelter (fashionable in the 50's)would keep you out of the Blast(maybe)but would not save you from the Gamma rays.Everything would be contaminated for hundreds of generations.Nothing would grow,water would be undrinkable.When and if you emerge from your shelter,what and who would you find?Back to the Stone age.Have you seen the series on Discovery,Life after PeopleIt would be awful if you survived.
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The last three electric utility companies we've done business with offer whole-house lightning protection, with a guarantee. Not free, but the good stuff. I've not used it, having just the usual consumer electronics, not like a home-office server system, etc. Out here in the plains, we have some of the biggest thunder storms in the country, too. If it's a Big one, I'd more likely physically unplug my best stuff, take a bit to get ready to go to basement shelter if a tornado warning is broadcast, and call anybody that's away from home to make sure they stay alert. Next door, the neighbor's house was hit by lightning three times over ten years, finally apparently stopped by tree-pruning and complete removal of one big tree that, at about 120ft in height, had acted as a lightening rod. Just an anecdote.

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