Electronics Forum / Electrical Engineering / July 2007

Can somebody please help me solve this problem in PSCAD.
I can compile a project no problem, but if I try to build the project
I am told that:
"D:\Program Files\EGCS\bin\make : *** [Main.o] Error 2"

The primary responsibilities of this position will be to serve in a
general civil capacity with focus on water/wastewater engineering and
water resource related projects. Typical projects may include but are
not limited to: water and sewer facilities design, treatment plant and

About two weeks ago my surface LED light on my oven stays on all the time.
No effect when I cook...light just won't go off when I turn off any of the
top surface elements.   Is this a short circuit, or something else going on?
Any info appreciated.

Hi, I am wondering why is radiation absorbtion material (RAM) has a
pyramid structure in a RF anechoic chamber? Why not cube or some other
pattern?
A.M.

Some domestic appliances come with rechargeable cells that need charging
for many hours before their first use.
For example, I have a Panasonic DECT phone with two AAA NiMH cells which
needs charging for 7 hours.

I am going to a customer site to measure machine power, while it is in an
idle state. It has a 3 phase & neutral supply(50Hz).
My plan is to use a clamp meter to measure current,
is it simply a case of P=IV for power or is there a need to multiply by

I have a current transformer of 33KV 200/1 A .I wish to calculate the
frequency response ,could you please suggest a circuit diagram

I am in the UK.  I want to ask for info about joining 3-core mains
flex on an appliance that may  have to carry up to 3,000 Watts.
I usually extend the mains flex by soldering but the finished join is
too bulky when winding the flex or pulling it around a corner.

This is about the equation: C = I* dT/dE.
I've taken Calculus and currently taking Diff EQ. At the moment I
understand about applying Diff EQ techniques to turn that equation into a
solution for all values of t (time). What does the equation mean in the

I have a brand new (Chinese) electric bicycle that melts (rather than
blows) the 30 amp spade fuse every time I use it.  Voltage is 36v and
the motor is 180 watts.  A 40amp fuse is available by special order
but I am reluctant to use one without specialist advice.

I hope this isn't too dumb...
I am replacing some old 2 prong receptacles with new 3 prong ones.
Still only the old two conductors-hot and neutral- in the box.  At
least I don't have to run all over the house searching for an adaptor

Hi! I am studying how to build a shielded room. Could anyone send me
the name of  a web page or any place where I could find some
information? Thanks a lot.
                                                            Pantina

hello, OK, I've been breaking my head over this one for a while and
just can't figure it out.  It's an example from a book called
"Practical Electronics For Inventors"  It's basically a "Simple
Triangle-wave/Square-wave Generator"  It has a integrator opamp

Why would a relay have bias currents such as this:
http://www.teledynerelays.com/pdf/military/ca.pdf.  Does it have something
to do with operating it in open-collector mode?
Thanks,

I wish to measure the capacitance of a coaxial cable.Is it a good
approach to use LCR bridge
Please give suggestions
Thanks