40
────────────────────────────────────────────────────
4.5 Setting the Scaling (PT/CT/SC Ratios)
────────────────────────────────────────────────────
Scaling operation
46-1.tif
PT
CT
SC
Scaling constant
Display
Setting range
PT ratio (
Kp
)
PT
0.0001 to 10000.
CT ratio (
Kc
)
CT
0.0001 to 10000.
SC (
Ksc
)
SC
0.0001 to 10000.
Function
Equation
Voltage
U
U
×
Kp
Current
I
I
×
Kc
Active power
P
P
×
Kp
×
Kc
×
Ksc
Apparent power
S
S
×
Kp
×
Kc
×
Ksc
Reactive power
Q
Q
×
Kp
×
Kc
×
Ksc
Integrated current
Ih
Ih
×
Kc
Integrated voltage
WP
WP
×
Kp
×
Kc
×
Ksc
F1
F2
F3
F4
F5
UNIT
PT
4.5 Setting the Scaling (PT/CT/SC Ratios)
This is used for setting the ratio (PT ratio or CT ratio) when using an
external voltage transformer (PT) or current transformer (CT), and the
scaling factor (SC ratio) for conversion of the active power to other physical
units. When a PT ratio, CT ratio, or SC ratio is set for a particular channel,
on the measurement screen this appears as "SC". The ranges which can be
set are as shown below.
1. Press the
STATUS
key, then use the
PAGE
(
)
keys to display the "
UNIT
" page.
2. Using the
CURSOR
keys, move the cursor to the
desired channel of the PT, CT or SC item.
3. Set the numerical value 0 to 9 by using
F1
(
↑
;
up),
F2
(
↓
; down), and move the decimal point
by using
F3
(
←
.),
F4
(.
→
). To move the digit,
use the
CURSOR
keys.
4. Press the
MEAS
key to return to the measurement
screen.
46-2.tif
Summary of Contents for Power HiTester 3193
Page 2: ......
Page 50: ...32 3 9 Operations During Power Failure ...
Page 76: ...58 4 13 Degaussing ...
Page 80: ...62 5 2 Setting the Frequency Range fa ...
Page 108: ...90 9 3 Internal Circuit for the External Control and Timing ...
Page 112: ...94 10 3 Output Rate ...
Page 250: ...232 13 9 Error and Overflow Displays ...
Page 278: ...260 17 5 Internal Block Diagram ...
Page 284: ...266 19 2 Installation Procedures For JIS standard For EIA standard External Dimensions ...
Page 300: ...282 20 4 Internal Block Diagram of the 3193 ...
Page 306: ...INDEX 4 Index ...
Page 307: ......
Page 308: ......
Page 309: ......
Page 310: ......