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Inverter gen revs up then cuts out

Gentrax 4.4 kva generator revs up then cuts out on overload

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Posted on Jan 02, 2017

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SOURCE: honda eu 6500 gen overload indicator light will not shut off

Check the Ground Fault Indicator circuit breaker for triping, and look for the high limit on generator. Reset the main breaker by triping it full right and then back. Vitally

Posted on May 22, 2009

SOURCE: The coleman voltage generator for 250 kva gen set

Well I assume that this generator is NOT three Phase, and delivering 440 Volts? in that case, that reading is what is called and "Open Circuit" reading, with a full load, that reading will/should come down to the nominal voltage of 250 V (+/- 10%) This generator is a 250 V AC unit? If this is so then it is operating correctly? It is 5kw UNIT. using a digital multimeter due to it's large input impedance it will often give erroneous readings if NOT loaded down with the correct.any. load.?

Posted on Mar 03, 2010

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Using generator due to power outage plugged in coffee pot and no power coming from generator but generator still running . Briggs and Stratton G 1000M reset and nothing happening . OMGosh help


consider this
what is the wattage of the coffee pot and what is the wattage of the genset
if they are the same then the overload of the gen set has cut in
the gen set has to be at least twice any wattage of what is connected
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Can voltage on Powermate be adjusted?


yes
the adjustment is by the rpm setting on the governor spring
thee is a nut that you adjust the spring tension with and lower the rpms and watch the voltage gauge until you get the desired voltage
if the load is going to be constant but is well within the rated capacity( example 2kva of a 6.5 kva set) of the gen set then the variation when the load comes on will be less than 5 volts
however if the power required is close to the max capacity of the gen set ( example 4.5kva of a rated 5 kva set) , then turn the unit on and adjust the rpms up to the required voltage required
remember that an advertised kva is not the rated kva
rated kva is what the gen set will produce all day and is normally around 1kva less than advertised kva
so if you have a 6.5 kva gen set ,it will handle current peaks to 6.5 kva but will burn out if required to run long time at that load
if the gen set is 1000 watts then rated watts will be less ( 750-800) for long time use

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1 Answer

Generator had been running for 3 hours with a/c and refrigerator and lights (on concession trailer)when we experienced a loss


the unit has gone into over load
The total power requirement has exceed the output of the generator
for example if the generator is a 2.500 kw or kva then it will generate well at 1.8 kva or kw but it will not run forever at 2.5 kva -kw
When a ac is running the power requirement will be constant on the generator and with the fridge as well then the load will be at the maximum out put of the unit.
when the fridge starts again the extra load will exceed the max out put of the generator and it will slow down ( lights dimming ) and eventually go into overload mode
have an accredited electrician calculate your maximum load requirement for an external power supply and then get a unit that is at least 15.. kva kw better that required
generally fridges use 1000watts , ac conditions will draw over 3000watts and any thing else adds up . I am guessing that your generator is only 2500 unit

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is the auto transfer switch rated to handle a 60 kva gen set cus you can use a larger auto switch on a smaller gen set but it don't work the other way cus you'll be burning up wires and contactors and have a fire !

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Itr sounds like a failing ignition module, or incorrect trigger gap

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I have a Yanmar 4.5 KVA Generator running into a Trace 2.5 KVA inverter/charger, the inverter requires 205-220volts to operate,once the inverter connects the voltage drops on the genny over a ten second+-...


try adjusting the gen voltage at no load to run at 240 volts
when the load comes on it will drop back to 220-235 volts
check the load output from the inverter as 2.5 kv is nearly 80% of the genset duty cycle
4.5 KV is start up KV and the duty KV is around 3..8 kv not the plated 4.5 kv
to get constant 4.5 kv you will need a 5.5-6 kv unit
if the current draw from the inverter is excessive , the engine may not have enough in reserve to over come the load and will not pick up the rpms
take the gen set and the inverter to a shop that has a calibrated load bank to test accurate power output to determine if the engine needs an overhaul

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1 Answer

When it's started the engine revs hard as if it's powering something whilst nothing is connected. after a few seconds the overload light comes on & the engine settles down but the overload light stays...


in checking my manuals their is a rectifier that controls the 12 volt side this can be bad even though it is for the 12 volts some times the gen needs a back pulse witch acts like a exciter that kick the power in you can replace this part i do not have the part number i'm sorry but you can get them from electronics stores the part will be black 1x1x3/8 inch with a mounting hole in the center with 4 wire studs replace and try this first if the issue is not solved then the inverter unis is bad unfortunately this is a solid state sealed unit encased in a hard gel that hole unit will need to be replaced in order to cure your issue i hope this helps

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1 Answer

My trace inverter SW2512 will only allow pass through power.


First problem is caused by the new generator producing too high a frequency... 65 Hertz is above the inverter limit. Adjust the governor down to 60 or 61 Hertz.
Breaker tripping may be due to excessive current draw from the Honda. Check the max AC input menu on the inverter. It might have been set lower to avoid overloading the original generator but if DC power was turned off at any time while you were changing generators, the inverter would have returned to it's default settings which may exceed the Honda's capacity.

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