

Reference:
“VARACTOR” SERIES: 170/450/650
DIGITAL REACTIVE POWER (PF) REGULATORS:
With Display of PF, Voltage, Required KVAR, Harmonics %, Panel Temperature and Alarms
With Intelligent Alarms for Harmonic Overcurrent, Overvoltage, Overtemperature & Low PF warning
VARACTOR Series 650 Size: 144 x 144 x 50 mm
MAIN FEATURES:
3 Digit LED Display
Powerful Micro Processor based operation
Automatic CT Polarity Correction (K&L)
Automatic C/K adjustment
Gives Multiple Readings such as:
Power Factor, System Voltage, Required KVAR, Harmonic current over load, temperature inside PF Panel,
Alarm parameter and value
Intelligent Alarm Functions:
Over-Voltage, Over Current (Harmonics)
Over-Temperature, Low PF Warning
Individual Alarm programming & dis-enable
Three operating modes: Auto, Man1, Man2 (Set at Auto Mode for regular operation)
Low voltage release : de-energises the output relays whenever mains failures exceeds for 20ms.
High Voltage release : Switches off the capacitor banks in case of temporary phenomena connected with faults
or manoevres generating overvoltage with a higher frequency than mains.
SYSTEM ALARMS For Series 650/450: (Alarms can be disabled)
Overtemperature : 0 - 600C (Set at 50
0C)
Harmonic Overload Alarm Threshold : 0 to 200% (Set at 1.25 In)
Overvoltage Alarm Threshold : 0 to 995V (Factory set at 460V)
Overvoltage Alarm delay time: 1 to 250 min (Set at 60 min)
Low PF Alarm Threshold 0 to 1.00 (Set at 0.86)
Low PF Alarm delay time: 1 to 250 min (Set at 60 min)
TECHNICAL SPECIFICATIONS: V450/V650
i. Power supply: 230 to 240V OR 115 to 120V ± 10% 50/60Hz
ii. Voltage input for measurement: 100 to 690V (RMS)
iii. Frequency: 50/60 Hz (self determined)
iv. Current input: 5A via CT…5/5A to 12000/5A (Settable)
v. C/K adjustment: Automatic adjustment
vi. Switching Interval : (programmable): 2 to 250 sec
vii. Switching Sequence: Universal (Self adapting)
viii. Enclosure: Self Extinguishing Plastic (UL94VO).