HD POWER TRANSDUCER SERIES Var HOUR TRANSDUCER MODEL

HD POWER TRANSDUCER SERIES Var. HOUR TRANSDUCER MODEL HDKH - MODEL & SUFFIX CODE SELECTION MODEL HDKH ■ PHASE & WIRE ■ VOLTAGE & AMPERE 1 P 2 W The Varhour transducer Model HDKH provides a PULSE proportional to AC reactive power. * Little ropple : stable output * Input - output isolated * Frequency output available for totalizing 3 P 3 W 3 P 4 W ■ Var POLARTIY GENERAL SPECIFICATIONS Construction : DIN housings Terminal access on front face Housing materiel : plastic(black) Wiring : 3. 0 M screw terminals Isolation : AC input/DC output/power Adjustments : zero and span 5% Over-range output = 0 -120% ■ OUTPUT * PULSE MODE * PULSE RANGE PERFORMANCE Accuracy : 0. 1% or 0. 25% Temp. coefficient : 0. 03%/C Insulation resistance : 100 Mohm or more with 500 V DC Response time : 0. 4 sec(400 ms) Line Voltage effect : 0. 1% with 10% change Ripple : 0. 25% p-p max. (100/120 Hz) Dielectric strength : 2000 V AC 1 minute input/output/power Surge withstand Voltage : 1. 2/50 sec, 5 KV (INPUT to OUTPUT to GROUND) ORDERING INFORMATION Specify code number and variables * Code number : HDKH-phase/wire-voltage/ampere. POLARITY -Pulse mode-pulse range ex : HDKH-4 APA 1 * special output range : code O Pulse range : 0 - 10 Hz 1

INSTALLATION INPUT & OUTPUT Operating temperature : -5 to +55 C Operating humidity : 20 -80%RH(non-condensing) Mounting : Wall or DIN rail Power supply : AC 110 V or 220 V (-15/+10%) 50/60 Hz, 2 VA Size : W 75 H 150 D 113 mm Weight : ■ INPUT * Voltage Side ( PT side ) Operational range : 0 -110% Permissible over range : 150% for 10 seconds 120% continuously * Current Side ( CT side ) Operational range : 0 -120% Permissible over range : 1000% for 5 seconds 150% for 10 seconds 120% continuously Frequency : 60 or 50 Hz ■ INPUT RANGE 1 -PHASE/2 -WIRE 1 -PHASE/3 -WIRE 3 -PHASE/4 -WIRE ■ HOW TO DETERMINE PULSE Calibration Range [Var] = Measuring Var PT ratio x CT ratio Var. HOUR PULSE RATIO RANGE 1 pulse ratio = PT ratio x CT ratio Check that the required calibration range is within the available range in the table [example] 3 -phase / 3 -wire 110 V. 5 A PT : 3300 V/110 V CT : 250 A/5 A Var. HOUR PULSE RANGE 1 pulse ratio = 30 (PT ratio) x 50 (CT ratio) x Varh = 1500 Varh ·pulse ratio = Calibration Var range / 1 hour [example] 3 -phase / 3 -wire 110 V. 5 A. 1000 Var pulse range = 1000 pulse / 1 hour 2

■OUTPUT * MODE A. Open collector Min 1 V DC 100 m. A Max 20 V DC 100 m. A B. Relay contact C. Voltage pulse Relay Capacity 100 V , 0. 1 A High + 15 V Low 0 V * ON duration : 250 msec. [ min, 50 msec. , max. wattinput range/1 hour 1/2 sec * Frequency range : 0 - 2, 777 Hz CONNECTION DIAGRAM DIMENSION & INSTRUCTIONS 3 5 m. A