MODEL: 18RP

18RP SPECIFICATIONS

ES-1867 Rev.8 Page 2/3

http://www.m-system.co.jp/

INPUT SPECIFICATIONS

Frequency: 50 or 60 Hz

• Current Input

Operational range: 0 – 120 % of rating

Overload capacity: 1000 % of rating for 3 sec., 200 % for 10

sec., 120 % continuous

• Voltage Input

Operational range: 0 – 120 % of rating

Overload capacity: 150 % of rating for 10 sec., 120 %

continuous

■ Input Range

How To Determine Var Range:

Calibration Range [var] = Measuring Range ÷ ((VT Ratio) ×

(CT Ratio))

Check that the required calibration range is within the

available range in the table. Specify this range when

ordering.

[example]

3-phase / 3-wire, measuring range 75 kvar, VT 220 / 110 V,

CT 250 / 5 A

• 3-phase / 3-wire

INPUT

AVAILABLE

BURDEN (VA)

STD.RANGE

RANGE

VOLT.

CURR.

110V/1A

200 var

100 – 240 var

0.2

110V/5A

1000 var

500 – 1200 var

/phase

220V/1A

400 var

200 – 480 var

0.4

220V/5A

2000 var

1000 – 2400 var

/phase

0.1/phase

0.5/phase

0.1/phase

0.5/phase

OUTPUT SPECIFICATIONS

■

3

OUT

5V

1

3

OUT

5V

1

0

1000Var

(Lead)

1000

(Lag)

0

1000Var

(Lead)

1000

(Lag)

OPERATION DIAGRAM (example)

• Negative in lag, positive in lead

• Negative in lead, positive in lag

INSTALLATION

Current consumption: Approx. 80 mA

Operating temperature: -5 to +55°C (23 to 131°F)

Operating humidity: 30 to 90 %RH (non-condensing)

Mounting: Standard Rack 18BXx or 18KBXx

Weight: 200 g (0.44 lb)

PERFORMANCE in percentage of span

Accuracy: ±0.5 %

Temp. coefficient: ±0.05 %/°C (±0.03 %/°F)

Response time: ≤ 1 sec. (0 – 90 %)

Ripple: 0.5 %p-p max. (50/60 Hz)

Line voltage effect: ±0.1 % over voltage range

Insulation resistance: ≥ 100 MΩ with 500 V DC

Dielectric strength: 2000 V AC @ 1 minute

(voltage input to current input to output 1 or output 2 or

power)

500 V AC @ 1 minute (output 1 to output 2 to power)

2000 V AC @ 1 minute (input or output or power to ground)