Question about Electrical Supplies

Open Question

The generator model is Ambionair TDG7500SE. Do I need a transfer switch or is one built in ? It has the ATS. switch with the generator,I can't find a diagram that shows this info. Or what's re

Posted by on

Ad

4 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
CarlGehrke
  • 169 Answers

SOURCE: Generac Guardian 15kW Generator

That sounds just about right, if the relay contacts get welded together it sometimes takes out the driver on the printed circuit board. As you found out, 12vdc from 23 to 194 makes the transfer switch move to the Generator position, relay not energized makes the ATS move to the Normal position.

You can make a nice test function by installing a 10 amp contact switch in series with either the N1 or N2 terminals. When the switch is open the generator thinks the Normal power has failed.

Regards,
Carl

Posted on Jan 26, 2009

Ad
  • 73 Answers

SOURCE: i want to connect the generator to the ats but i

by ats I assume that you mean an (automatic transfer switch) this is a very non forgiving installation please (no disrespect intended) get a professional to do this for you. you are mixing generator supplied voltage with residential hydro depending on your situation you could end up back feeding the grid and put your self and / or your neighbours in harms way no b/s my friend I have seen it "not pretty"

Posted on Oct 23, 2009

  • 85 Answers

SOURCE: I Am installing a Generac 20Kw air cooled unit

It is always good to install a large enough wire where the maximum load can be drawn plus a little extra for safety. 7 gauge wire will do, if it was mine I would use 6 gauge wire. If the length is over 20 feet but not longer than 80 feet go to the next larger size wire.

Posted on Dec 18, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

Generac generator won't turn off in automatic


It is possibly a transfer switch issue, not the generator control board. Have an electrican kill utility power, let it start and run, then disconnect the sensing wires in the ATS. If it stops problem is ATS

Mar 01, 2015 | Generac Electrical Supplies

1 Answer

Trickle charger on 60 kw propane generator not working battery going dead in about a week


The trickle charger is the problem and needs replacing? Not sure of the question. If you have the trickle charger built into the transfer switch then check there and internal ATS fuses. If you have the external or gen model, make sure any receptacle it is plugged into is working, as sometimes they are wored ona GFCI and they trip easy

Nov 08, 2013 | Generac Electrical Supplies

1 Answer

Kohler 20resal 100amp transfer switch RXT will not auto start?


Disconnect generator remote start wires in the ATS. Put an ohm meter across the remote start terminals in the ATS and kill utility power, you should here a click in the ATS and the ohm meter should indicate close to zero ohms. If it does then your ATS is fine and the problem is gen control board or wiring between the two. If it does not show that value, then the start relay in the ATS is suspect.

Feb 12, 2013 | Kohler Generator 20kw 20res W/ 200 Amp...

1 Answer

The generator doesn't turn off after transfering power back to the utility


The transfer switch is responsible for starting / stopping the generator. Check your auto - start circuit. It is 2 wires that go between the genset and ATS. They are generally normally open. When the genset is to shut down this circuit needs to change state.

Jul 09, 2011 | Briggs & Stratton Briggs Stratton 7 kW...

1 Answer

Models: KCT, KCP Power Switching device: Standard Open- Transition 30 to 4000 Amps Programmed- Transition 150 to 4000 Amps Electrical Controls: MPAC 1000 Problem: Power went off, generator Started,...


try to find the manual , these units have a pre program set from the factory, dissconect the unit at the generator 1)battery terminal 2)main switch on generator 3) reconnect battery and turn on the switch,press auto,should reset

Jun 09, 2011 | Kohler Electrical Supplies

1 Answer

I want to connect the generator to the ats but i


by ats I assume that you mean an (automatic transfer switch) this is a very non forgiving installation please (no disrespect intended) get a professional to do this for you. you are mixing generator supplied voltage with residential hydro depending on your situation you could end up back feeding the grid and put your self and / or your neighbours in harms way no b/s my friend I have seen it "not pretty"

Oct 18, 2009 | Electrical Supplies

2 Answers

Prblem with ASCO ATS


This could be part of the normal behavior of the ATS. Many ATS are set up to allow the switch mechanism to sit in the "neutral" position for a time delay (as much as a minute) so that things like large motors, pumps, etc to wind down so that they don't get powered up at full speed. Here is how I would troubleshoot your ATS:

1) With the Commercial power on and the ATS in Normal, start the generator and make sure that the power at the Emergency terminals of the ATS is the correct voltage and frequency, if this is a 3 phase system also make sure that the phasing matches the commercial power side.

2) Turn the generator off, make sure it's in off not auto. Turn the commercial power off. Then manually operate the ATS transfer mechanism (there is usually a little handle for this), check continuity of the poles of the transfer mechanism to make sure that it's really making and breaking contacts where it's supposed to. While you're doing this you need to check the limit switches at both sides of the transfer mechanism, These switches are how the ATS controller "knows" what state the mechanism is in, they sometimes get out of mechanical adjustment and on rare occasions break and have to be replaced.

3) Once you've satisfied yourself that the transfer mechanism is operating correctly, set it to the Normal position and turn the commercial power on. Switch the generator into Auto so that the system is in it's Automatic mode. Find the manual for the ATS if possible and locate and record all of the adjustable time delays, I often write down the time values we want inside the door of the ATS.

4) With your stopwatch or sweep second hand wristwatch at the ready, start the Test function of the ATS and time out the various operating states as the system goes thru them. In general your ATS should do something like this:

a) You hit the test function, the system simulates a Commercial outage and begins a transfer sequence. On many systems there is an adjustable time that the Commercial power has to remain off for anything to happen, this is Time Delay Start.

b) The ATS closes the contact that tells the generator to start. Then it waits until it sees correct power at the Emergency terminals of the transfer mechanism. When correct Emergency power is available, the ATS controller fires the transfer mechanism to put it into its neutral position. After an adjustable time delay (Time Delay Neutral), the controller fires the mechanism again to put it into Emergency position. Some mechanisms aren't designed to do this "stopping in the middle" feature and so there is only the one action by the controller to get from Commercial to Emergency position, it's also worth noting that on mechanisms that can stay in the neutral position the delay could be 0 so the switch will transition as fast as it can.

c) The system is now suppling the load from the generator. Some ATS require you to interact with the test at this point to get back to the Automatic mode, read the fine manual. In any case there will be a delay from the time the ATS detects correct power at the Normal terminals until it starts the sequence to get back to Auto, this delay is called Time Delay Emergency to Normal. You want this time to be just long enough to keep from making false transfers, but not so long that you waste fuel, most places are something like 15 - 30 minutes.

d) If there was a delay in the neutral position going to Emergency, there ought to be one coming back to Normal. Keep in mind that this delay isn't about the source of power, it's about the load.

e) Once the switch is in the Normal position, the ATS should keep the generator running for a time (Time Delay Cooldown), to allow the prime mover (engine) to return to a safe to shut down condition. On small air cooled engines this can be 0, on very large diesel engines it can be as much as 30 minutes.

f) The system is back in Automatic mode waiting for a power fail.

5) If the ATS can perform a transfer test as above correctly, it should be able to operate just the same way during a real outage. One can and should be able to demonstrate this by operating a disconnect (switch, breaker, etc) at the Commercial power side of the ATS.

If your ATS doesn't pass the transfer test as above, look for (in order of probability)
Incorrect power from the generator.
Broken or missadjusted limit switches in the transfer mechanism.
A mechanically broken transfer mechanism.
A bad controller in the ATS.

Regards,
Carl

Apr 07, 2009 | Winco 200-Amp Automatic Transfer Switch -...

1 Answer

Generac Guardian 15kW Generator


That sounds just about right, if the relay contacts get welded together it sometimes takes out the driver on the printed circuit board. As you found out, 12vdc from 23 to 194 makes the transfer switch move to the Generator position, relay not energized makes the ATS move to the Normal position.

You can make a nice test function by installing a 10 amp contact switch in series with either the N1 or N2 terminals. When the switch is open the generator thinks the Normal power has failed.

Regards,
Carl

Jan 20, 2009 | Generac Guardian 100 Amp Transfer Switch...

Not finding what you are looking for?
Electrical Supplies Logo

Related Topics:

33 people viewed this question

Ask a Question

Usually answered in minutes!

Top Electrical Supplies Experts

ken skalski

Level 2 Expert

152 Answers

Gene Haynes

Level 3 Expert

5245 Answers

Brad Brown

Level 3 Expert

16195 Answers

Are you an Electrical Supply Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...