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Servo Stabilizers
Standard Specification: 3 PHASE AIR COOLED
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Phase to Phase Input Range
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245V – 460V AC3Ph
300V -470VAC
340V 480V AC3Ph
360V 480V AC3Ph
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Output Voltage
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400V/415V AC50Hz
Unbalanced
4 wire : RYB N
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Connections
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Star
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Operating Frequency
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47 to 53 Hz
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Output Voltage Adjustable
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380V to 415V AC in 3Ph
220V to 240V Ac in 1Ph
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Output Voltage Regulation
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+ 1 %
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(No load to Full Load)
Out Voltage Regulation
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+ 1 %
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(Full Load) S Correction Rate
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15V / 20V / 35V / Sec 1Ph
25V / 35V / 60V / Sec 3Ph
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Waveform Distortion
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Nil
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Output Waveform
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True Reproduction of Input
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Insulation
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Class
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Short CKT Period & Percentage
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300 % for 250 m.sec.
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Normal Operating Temperature
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00 C to 45 0C
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Climatic Conditions
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90 % RHMax. Non-Condensing at 350C
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Type of Cooling
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Natural Air Cooled
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Capacities
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1) From 0.5 KVA up to 50 KV A 1Phase
2) From 1.5 KVA up to 200 KVA 3phase
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Mode of system
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Fully Automatic / Manual
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System construction
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AS PER IS: 9815 OF 1994
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Protection
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Over voltage CUT-OFF
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(above 245 VAC output)
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Low voltage cut-off
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(below 200 VAC output)
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Control CKT protected with fuses spike / lightening arresters (optional)
Overload protected with mcb / mccb
Short CKT protected with HRC fuses
Single phasing preventer: dimmer protection arrangement
Automatic by-pass (optional).
Energy Savings
Better efficiency of 98% achieved by use of prime grade Lamination and electrolytic copper wires of 99.99% purity. Special designs of transformers to minimize losses.
Area of usage
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Bio-Medical Equipments, C.N.C., Printing & Textile Machinery.
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Sophisticated Equipment, Split Air Conditioners, Lighting and all areas where regulated voltages are required.
Indication
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Input ON
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Input LOW
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Output ON
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Output CUT-OFF
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Input High
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Voltmeter
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Panel controls
Input / output select switch : auto /manual select switch
Increase / decrease spring loaded switch to adjust
The output voltages in manual mode.
Volts adjust to set required out pt voltages in auto mode.
SPECIFICATIONS: SINGLE PHASE SYSTEM
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Input Voltage Range
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170 – 270 V AC 50 Hz + 6 %
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Output Voltage
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230 V AC Nominal
Internally adjustable to 220Vto240V AC
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Output Voltage Regulation
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+ 1 % of Nominal Voltage
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Average Correction
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35V / Sec
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Output Voltage Indication
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Digital Voltmeter
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Accuracy of Digital Voltmeter
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1 Volt + 0.5 % of full scale + digit
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Resolution of Digital Voltmeter
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1 Volt
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Electronic Under / Over Voltage
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UPPER LIMIT 10V+2VAbove Nominal
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Protection
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LOWER LIMIT 20V+2VBelow Nominal
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Servo Motor Drive
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Electronic
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Cut-Off
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Operative above 110 % rated output
Current with graded time delay
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Non-latching LED Operate
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Input Present
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Indication
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Output Normal
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Caution
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Input High
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Cut-off
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Output High
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Indications
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Output Low
Output Overload
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Start
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Press to start (Automatic Optional)
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Resetting Indication (Manual)
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Through Flashing LED and with intermittent beeper
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Control Circuit
Micro processor based electronic circuit which will sense all parameter time to time and up-date the system in micro seconds time to give the performance.
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