|
1 PHASE |
3 PHASE |
| INPUT |
180V - 260V |
300V - 460V |
|
|
360V - 440V |
| OUTPUT |
230V - 240V* |
380 / 400V / 415V* |
| FREQUENCY |
50 / 60Hz |
|
| CAPACITY |
1 KVA TO 1000 KVA |
|
| * Any one output voltage will be available. |
• Non standard models are made to customer's specific requirements to caster any other input voltage range / output
voltage / frequency / capacity etc.
• 3 Phase models with single voltage sensing relay and single drive motor are suitable for fairly balanced supply
voltage and load.
• To over come unbalanced voltage and load conditions, 3 Nos 1 phase units mounted in a single cabinet and
connected in star, are recommended.
Built in Features :
• A Voltmeter with switch to indicate input / output voltages.
• Long term stability of ± 1%.
• Output setting - ± 5 Volts by a lockable potentiometer.
• High efficiency above 95%.
• Indications for "Power ON", "Input too low" & " Input too high".
• A drive motor of special construction having high torque, low speed output with instant start / stop /
reverse characteristics.
Construction :
Lower capacity units, up to 50KVA are in air cooled single unit construction. Higher capacity units will be in two piece construction for the convenience of transportation & installation. Inter connecting cables / bus bars will be provided with the equipment. Both sections will be floor mounting type, and either one or both may be oil cooled depending on requirement.
Operation :
The voltage stabilizer works on a simple principal of adding or a subtracting a voltage to the supply voltage in appropriate quantity to correct it to the required level. This voltage to be added or subtracted is obtained from the mains itself, using a continuously variable voltage auto transformer, driven by a servo motor under the control of voltage sensing relay. This relay sense the output voltage continuously, compares with a highly stable reference and directs the drive motor to correct the output voltage to the set level.
Salient Features :
• Fully solid state voltage sensing relay using professional grade components.
• No relay - No chattering - No RF interference.
• Fast acting.
• Fully tropicallised, most suitable for weather conditions prevailing in Indian sub-continent.
• Variable transformer and voltage sensing relay-most important components are made in house under strict quality control.
• Variation in the supply, frequency and load p. f. has no effect on the output voltage setting.
• No harmonic distortion is introduced by the stabilizer.
Optional Features :
• Over voltage / under voltage protection relays.
• Over load protection relay.
• Remote sensing facility. |
