YOKOGAWA 2100A series User Manual

14
WATTMETERS
[Available Calibration Watts]
VOLTAGE
110/ √
_
3V
110V
115V
120V
220/ √
_
3V
200V
220V
240V
Operating
voltage range
52 to 75V
90 to 130V
104 to 150V
180 to 260V
CURRENT
1A
5A
1A
5A
1A
5A
1A
5A
Single phase
2-wire
48 to 80W
240 to 400W
72 to 164W
360 to 820W
-
-
144 to 328W
720 to 1640W
Single phase
3-wire
-
-
145 to 330W
715 to 1650W
-
-
290 to 660W
1430 to 3300W
3-phase
3-wire
-
-
125 to 285W
625 to 1400W
-
-
250 to 570W
1250 to 2850W
3-phase
4-wire
125 to 285W
625 to 1400W
-
-
250 to 570W
1250 to 2850W
-
-
Standard Rating Available Calibration Watts
(1) Calibration Watts are 65 to 150%. Standard Watts beyond the limits are not available.
Single phase 2-wire:Standard Watts = Voltage Rating
×
Current Rating
Single phase 3-wire:Standard Watts = 2
×
Voltage Rating (P1-N)
×
Current Rating
3-phase 3-wire:Standard Watts = root3
×
Line Voltage Rating
×
Current Rating
3-phase 4-wire:Standard Watts = 3
×
Phase Voltage Rating
×
Current Rating
(2) When using VT and CT, Caribration watts will be as follows;
Caribration watts =
MAX.Full scale value
(VT ratio) × (CT ratio)
EX.1
EX.2
Connection
3-phase
3-wire
Single phase
2-wire
Full scale
value
20kW
7.5kW
VT ratio
440/110V
660/110V
CT ratio
30/5A
20/5A
Calibration watts
FS=
20kW
=833.3W Available
440/110 × 30/5
FS=
7.5kW
=312W Special order with TOKUCHU sheet
660/110 × 20/5

YOKOGAWA 2100A series Specifications

General

Brand	YOKOGAWA
Model	2100A series
Category	Measuring Instruments
Language	English