Answer / mandeep singh

(1) Low lube oil pressure
(2) High water temperature
(3) Over speed
(4) Low coolant level

Answer / histon lopis

* DG governor panel *high water temprature sensor *oil pressure sensor * injector setting * over load sensor * AVR and earthing . These all things mainly safety devices for DG.

Answer / muhammad javed

Over speed
low lub oil pressur
high cooling water temprture
over speed
low voltage
bearing temprature
low lub oil level
winding temprature
over load
exuast temprature
RPM

Answer / azam

1.Fuel inlet to generator
2.Oil mist detector
3.solenoid valves
4.Splash oil Temperature of generator and winding and
bearing temperature of Alternator
5.Over speeding of Alternator

Answer / bikashrkl

normally u find safety device in generators are(above 500kw skl,daihastu 6DK28 1500kw,their are size of a container of truck)
1.-over speed trip,
1.1-underload trip(i.e u can see the load in -ve value ,genrator acts as a motor when parallel operation taking current from another generator)
2.jacket cooling water temperature high ,it will trip the generator and protect the generator being damaged by lack of cooling
3.overload trip.when load demand is higher than rated capacity(i.e ur generator capacity is 400kw but demand got high due to simultaneous starting of many machinsry or electrical items)
4.in some case u will find oil mist detector ,but provisons are there such as relief valve fitted on the alternate doors of crankcase not in all generators
5.low lube oil pressure alarm ,to protect the machinary .no l.o means overhating of running parts and consequence
6.low level alarm of lube oil in crank case.a float device is there to measure and if it is below critical level i.e low low level then it will trip the generator,as pump will not be able to take suction and lubrication of the bearing parts fail
7.jacket cooling water pressure low

Answer / renjith pillai

The safety devices depends on the types of prime mover used
in a generator. for eg. in a diesel generator there are
safety measures to shoot the over speed, to limit the fuel
supply in case of urgency. in modern generators there are
softwares used to control these things..

Answer / raju

1. High water temp.
2. Low lube oil press.
3. Low coolent water level
4. Over speed...

Answer / mithlesh

1. over load
2. lub. oil pressure low and high
3. water tempreture
4. rpm

Answer / nadeem khan qadri

Over speed of engine
Low voltage
High water temperature
Low lube oil pressure
Winding temperature
Low Water of cooling tower

Answer / jagmohan singh

1. Coolant temperature high
2. Low Lube oil
3. Lube oil pressure low
4. Low battery voltage
5. Engine overspeed
6. Low coolant

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