NEWCALC.COM A
resource for engineering calculation tools
|
|
ELECTRICAL
ENGINEERING PROGRAMS |
|
|
Voltage
Drop Calculator |
|
Calculates voltage drop for a feeder or branch
circuit using a formula that accounts for power factor. Can be used for
single or three-phase circuits. Gives the voltage drop for any size copper
wire in metallic conduit. |
|
| Transformer
Fault Current Calculator |
|
Calculates the maximum available fault current
on the secondary side of a single or three phase power transformer, when
the transformer properties are known. The available fault current on the
primary side may be assigned, or unknown, and assumed infinite. |
|
| Feeder Fault
Current Calculator |
|
Calculates the maximum available fault current
at any point along a single or three-phase feeder in an electrical distribution
system. The available fault current at the source of the feeder must be
known or calculated from the above program. |
|
| Feeder
Schedules |
|
Gives the size of two, three or four wire feeder,
and ground wire size (if applicable) for a given feeder ampacity. Does not
account for voltage drop, which must be checked seperately using the program
above. |
|
| Panel
Schedules |
|
Template panel schedules for 120/208V 3P 4W,
277/480V 3P 4W, 120/240V 1P 3W and 120/208V 1P 3W distribution panels, up
to 42 circuit breakers per panel. Automatically accounts for continuous
loads, and demand factors. |
|
| Transformer
Schedules |
|
Provides commonly needed transformer data for
480/277 to 120/208V transformers, including feeder sizes, overcurrent protection,
impedance, ground wire size, weight, noise, heat, etc. |
|
The above programs are
in Microsoft Excel format, suitable for use as schedule sheets that may
be imported in to AutoCAD drawings. The three programs may be downloaded
for free by clicking the links in the left column.
Please note that these programs are copyrighted by Newcalc, and
may not be re-published without permission
|
Current for May 2006, Copyright
© by Newcalc All rights Reserved |
|
|
|
|
