Pramac ES7000 genset

get the service manual from them
no way to fix a hacked 6000w generator.
engine RPM and HZ correct and voltage taps.
wired wrong is huge danger to all.
for sure grounds connected wrong./
or 250vac to any 120vac load devices.

here they are ask them

https://www.pramac.com/product?id=2539&folder=94

Download Cat Caterpillar Manuals Visit Site: Heavy Equipment Service Manuals https://heavy-equipmentmanual.com/ https://store.payloadz.com/results/376351-heavy-machine-manuals Email:- [email protected]

Hello Ling:
If you're putting more load on the unit than it was designed for, RPM will drop and if you do it too long, the unit will shut itself off with a circuit breaker.
It also may be that when the engine is under load, the governor demands more fuel so the engine SOUNDS like it's working harder, which it is. This is normal.
Hope this helps

Did you have a auto controller?
With the switch set to AUTO, the engine may crank and start at any time without warning. Such automatic starting occurs when utility power source voltage drops below a preset pevent or during the normal exercise cycle. To prevent possible injury that might be caused by such sudden starts, always set the switch to OFF and remove the fuse before work. Ing on or around the generator or transfer switch.

Hello. Maybe you have solved your problems. But I still want to share the helpful article to you. https://www.dieselgeneratortech.com/diesel-generators/why-diesel-generator-fail-to-start.html

We are Perkins diesel generator OEM. Can provide 22KW to 2200KW diesel generator set with Perkins engine. https://www.dieselgeneratortech.com/perkins

The distance between the sensor and the diesel generator flywheel is too far or too close (generally this distance is approximately 2.5 + 0.3 mm). If the distance is too far, it may not be able to sense the signal. If it is too close, it may damage the working surface of the sensor. Due to the high-speed operation of the flywheel, radial (or axial) turbulence occurs. The distance is too close to pose a great threat to the safety of the sensor. It has been found that several working faces of the probe have been scratched. According to practical experience, the distance is generally about 2mm, which can be measured with a feeler gauge.

Start looking at your safety circuits.

1. High water temp
2. Low Oil
3. Low water etc...

From the manual these are the protection circuits.

• Engine protection: low oil pressure, high engine temperature.
• Genset protection: under/over voltage, overload, battery charger failure, battery voltage out of limits,
under/over frequency, start failure.
• Circuit breaker protection: IV poles.
• Differential protection.


Any one of them will trip the fuel relay closed. What you may be able to do is disconnect one at a time each protection circuit and see when the fuel relay opens. (Make sure to reconnect each one if it had no effect on the fuel solenoid)

Once you isolate which circuit it is in then you can chase wires or change the bad switch.

Thanks for choosing FixYa.

Kelly

The controller circuit card needs to be replace. This is
the one that senses if and when power is shut off. This
will automatically start the engines.

my 500 kva diesel generetors dosnt work since mornning its workes after 4 houres when the weather changed

Most generators use a flyball type governor within the engine to control rpm; also there is a voltage regulator that tries to maintain voltage at about 115v. The voltage regulator varies the voltage to the armature increasing /adjusting magnetic force. Use a meter with htz or freq setting to adjust engine governor to 60 cycles. When the generator is producing 60 cycles, the engine should be turning 3600 rpm, max power range. At 3600 rpm the voltage should be 115 to 120 volts. Loading the generator will cause governor to try to maintain 3600 rpm. Check engine manual for proper adjustment of gonvernor and linkage. The governor mech should last the life of the engine, however governor system does wear out. Expensive repair. enjoy