Yokogawa PR300 電力量計

Input Specifications:

- Frequency: 45 to 65Hz

- Rated input voltage: 120 V, voltage range: 150 V : 900kV; 240 V, voltage range: 300 V: 1800kV; 480 V, voltage range: 600 V: 3600kV

- Allowable input voltage: Within the voltage range

- Rated input current: 1 A, current range 1 A (fixed): 32kA; 5 A, current range 5 A (fixed): 160kA

Analog Output Specifications (additional output function):

- Output signal: 4 to 20 mA DC

- Output accuracy Measurement: accuracy of measurement item for output +(0.5% of F.S.)

- Allowable load resistance: 0 to 600 Ω

- Response speed: 2 seconds or less (until ±1% of the final value is reached)

Demand Alarm Output Specifications (optional measuring function):

- Contact capacity: 30 V DC, 200 mA

- Set alarm range: 1 to 1000 kW (during demand power measurement); 1 to 1000 A (during demand current measurement)

Standard Performance:

- Accuracy rating: + Active energy/optional active energy (Wh): 0.5% (EN60687 accuracy: Class 0.5 or equivalent)

+ Active power (W): 0.5% of F.S.

+ Voltage (V):0.25% of F.S. (voltage rms)

+ Current (A): 0.25% of F.S. (current rms)

+ Frequency (Hz): 0.5Hz

+ Demand:0.5%

- Effects of magnetic field: 400 A/m or less, Active power: ±0.5% of F.S., Voltage: ±0.25% of F.S.

- Effects of changes in ambient temperature: ±0.03%/°C for a temperature change rate of 10°C/h or less (when 0.05In  I  Imax and power factor = 1); ±0.05%/°C for a temperature change rate of 10°C/h or less (when 0.1In  I Imax and power factor = LAG0.5); In: rated current; I: present current input

- Effects of power supply voltage variations: Active power: ±0.25%, Voltage/Current: ±0.125% (for variations within the power supply operating range (when 0.01In and power factor = 1)); In: rated current

- Effects of input frequency: Active power: ±0.25%, Voltage/Current: ±0.125% (for variations of 45 to 65 Hz)

- Power supply: 100 - 240 V AC ±10% (50/60 Hz) or 130 - 300 V DC ± 15%

- Power consumption: + AC drive: 10 VA maximum

+ DC drive: 5 W maximum

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