Power Factor Controllers3Ø-3CT (Thyristor Controlled)

PQ903T

• 3Ø-3CT Sensing
• Built in MFM with PF controller LCD display
• Manual Capacitor feeding
• Fast Switching with Thyristor controlled relays.
• CT sequence, CT polarity, Phase sequence Auto correction
• % THD up to 31st harmonics
• Alarms: Under/Over Compensation, Under/Over voltage, Under/Over Current, Under /Over THD V & I, Under/Over Temp., Fan output (Optional)
• Sizes up to 8,12,16 Relay (18 relay optional)
• RS 485 Modbus RTU Protocol

Technical Specifications

INPUT:
Voltage AC
Input voltage AC	11-300V AC (L-N) , 19 to 520V AC (L-L)
PT Primary	100V-22kV
PT Secondary	100V-500V L-L
Burden	<8VA
Frequency	45-65 Hz
Current AC(3 CT Sensing)
Input Current	20mA-5A (6A max)
Primary CT Ratio	5A-5000A AC (Programmable for any value)
Secondary Current Ac	1A / 5A (Selectable)
Overload	Up to 6A Continuous
DISPLAY, KEY & LED:
Display	1 Line ,4 digits to show electrical parameters: LCD with colour backlight
Key	Set UP/ESC, UP, DOWN, ENTER, Scroll
DIMENSION
Size	144X144mm
Panel Cutout	136X136mm
CONTROLLING RANGE
Operating Mode	AUTO/MANUAL/OFF
Trip Time Setting
Capacitor Delay time (ON/OFF)	20-9999 msec
Capacitor discharge Time	50-9999 msec
Cosine Tolerance	0.005 to 0.200
OUTPUT SPECIFICATION
8,12,16,18 Stage Capacitor Relay
Relay Type	(NO-C)
Rating	5A @ 230VAC (Max)
AUXILIARY SUPPLY
Supply voltage	80 - 270V AC/DC
Power consumption (VA RATING)	8VA max
ACCURACY
Class 1 (Standard)
ENVIRONMENT CONDITION
Operating Temp.	0° to 60°C
Relative Humidity	Up to 95% RH without moisture consideration
PF COMPENSATION METHOD
Capacitor Compensation (For Lagging PF)
Inductor Compensation (For Leading PF)