Fluke 1744 User Manual

Fluke

1744/1743

Users Manual

38

Logger Parameters with Function P

The following are the parameters of the 1744/1743 Logger with function P.

RMS value of voltage and current.
Basic values on 200 ms per phase.

∑

=

⋅

=

N

i

i

bas

V

N

V

1

2

1

∑

=

⋅

=

N

i

i

bas

I

N

I

1

2

1

N: Number of samples in 200 ms intervals

(2048)

RMS value of voltage and current
per logging interval per phase

∑

=

⋅

=

M

j

j

bas

RMS

V

M

V

1

1

∑

=

⋅

=

M

j

j

bas

RMS

I

M

I

1

1

M: Number of 200 ms intervals per

logging interval

Active power based on samples.
Basic value on 200 ms per phase.

i

N

i

i

bas

I

V

N

P

⋅

=

∑

=

1

1

Active power per logging interval
per phase

∑

=

⋅

=

M

j

j

bas

P

M

P

1

1

P

bas

: 200 ms value

M: Number of 200 ms intervals per

logging interval

Total active power on all three
phases

∑

=

=

3

1

k

k

total

P

P