Have a memory of a timer relay device that consisted of a synchronous motor and a clutch with associated contacts, believe it was manufactured by a company called King of Prussia,(that being the only name stamped on the timer)the device measured about 5 inches X 5 inches X 4 inches and had a...
Having problems sighting flame scanners on multi-burner boiler (gas/ oil fired)because of discrimination problems.
Does anyone manufacture a flexible? sighting tube that can be adapted to closely supervise burner flame.
Tube would be located in combustion air duct with operating temperature of...
When using for example an Iris or Fireye burner management system the devices usually come with a digital read-out display that monitor flame conditions, when firing with natural gas the read-out display is much lower than when firing with number 2 oil and changes with the firing rate, Is there...
A 480volt 3 phase 700Kva generator parallels onto a utility via a General Electric THC series Powerbreak switch, should the generator wires be connected to the Line side of the switch or does it even matter?
Presently the Utility is connected to the Line side.
Thanks in advance.
Apologies if this duplicates an earlier request.
Require a four input one output solid state switching device that switches on only when all inputs (120vac)are present and remains on when all or only one input is present and switches off when no inputs are present.
If someone can direct me to a...
Stupid question... is it kosher (NEC).. to install a 250 volt 30 amp twistlock receptacle to a 120volt 20 amp branch circuit..It sounds like a violation but cannot find an article that would refer to such an arrangement.
Thanx in advance
If the wires from a rotating rectifier assembly to the main rotor of a three phase synchronous generator are reversed what is the effect on the line voltage of that generator ?
Many thanx in advance (hoping to avoid an embarrassing situation)
Got a steam turbine 700kva 480volt generator that runs in parallel with utility, when loaded to about 65% capacity generator breaker opens and phase undervoltage trip is indicated on
beckwith m-3420 generator protection device.
Only occurs when generator capacity exceeds 65%.
Any suggestions...
came across this term in basler directional overcurrent relay,
what is it, what causes it and if objectionable how do you correct it?
many thanx in advance.
Synchronised a 700 Kwatt steam turbine driven generator, (480v) to the utility with peculiar results...the voltage went to 510 volt the PF to about 0.2 the current to 900 amp with little indication of real power on the wattmeter before tripping on overcurrent. The excitation is provided through...
The local utility requires two indicating lights on the front of their 13Kv switchgear to indicate the position of a generator air-circuit breaker installed downstream that operates in parallel with the utility.
Because of a shortage of auxilliary contacts on the generator air circuit breaker I...
