Dear all,
Mint Julep, thanks for pointing me to a useable directon.
Without your help it should have been hard to figure out these matters.
IRstuff; bang-bang, such easy, should not require to ask for help from this helpfull forum.
Thread can be considered as closed.
KR
-Bart
Hi!
Hopefully this is not the wrong forum.Otherwise pls advice me.
I am considering to make a pc-controlled central heating system for at home.
Currently the house is heated by a Vaillant VCW255/3 heater. The heater can be contolled proportional by a thermostat in the living. I like to replace...
Dear jraef,
Thanks for your comprehensive information which real makes sense.
I think the Korndorfer starter may be a good solution in this case.
I agree with others that still some 'factors' may disturb the proper work of the mains o/b the vessel.
Would there be some more info available for...
Apart from lack of wind I don't see a real problem with wind-driven generators. In Egypt I saw about 1000 windmills together all spinning and so generating cheap power. Of course you can't rely on that powersource only.
Once the system is well engineered I can't see why they e.g. will break and...
Jraef,
Somewhere in this thread you mention this must be a 1/2 hp motor.
What makes you do think so?
If indeed this single phase motor is only 1/2 hp I certainly should solve this by using a transformer. Just a single coil to connect to 480V with a tap at 230V.
But... keep in mind that some...
In addition:
I am aware of less torque when starting in "Y" (in theory 33% of rated torque). Also efficiency should be taken into account but I left that out for reason of simplicity.
-Bart
Dear all,
Thanks for your time so far. Glad to find others here who are willing to help.
Some more explanation:
I am working at a shipyard where we are building relative small vessels (size 12-40 mtr.)
The vessel I'm involved in now has a generator installed which might have a rated load of...
3-phase must be loaded as a rule of thumb within 30%.
Reason: voltage regulator is mostly based upon 2 phases.
By having bigger unbalance it might happen that the voltage from the phase to neutral (phase which is not used by voltage regulator) goes to high.
-Bart
Hi!
On board a ship we are having a diesel-generator set which supplies 44 [E] kW.
I do have a basic [E] load of about 35kW.
Q:
How do I calculate if I can start a compressor using Y/D starter in this configuration?
TIA
-Bart
Hi to all,
Thanks for your time so far.
First I have to inform that I'm from Holland/Europe.
Here we have to deal with IEC-regulations (I uploaded a doc about that).
IEC states that for 60Hz only 230V or 440V is allowed.
What is happening now:
Management wants to buy motors/equipment for the...
Hi,
We are having a 60Hz mains on board a ship.
Management wants 60 Hz as this gives more power than 50Hz.
Now they want 3x415V mains which is no standard for 60Hz.
The idea is to have 440V-60Hz motors run on the 415-60 mains.
Meanwhile no additional transformers are required for lighting...
