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Servo Controlled AC Voltage Stabilizer
A Servo Controlled Voltage Stabilizer essentially consists of a variable auto transformer coupled with a servo motor, a buck-boost transformer and an electronic controller. A sample output is taken and compared with a reference standard. The difference is called Error signal which is used to drive the servo motor for output voltage correction.
TECHNICAL SPECIFICATION OF SERVO CONTROLLED VOLTAGE STABILIZER
| 01) |
Input Voltage |
Wide variation of input voltage range starting from90V-265V in the lower side & 220V-290V on the higher side for single phase stabilizer & 160V-500V in the lower side and 380V-500V on the higher side for 3Phase variety as per customers specification. |
| 02) |
Output Voltage |
The output Voltage can be set anywhere between 220V-240V in Single Phase and 380V-440V in Three Phase. |
| 03) |
Output Variation |
± 1 % |
| 04) |
System |
Balanced/Unbalanced ( Individual phase correction). |
| 05) |
Control |
Automatic / Manual. |
| 06) |
Instrumentation |
Voltmeter on each phase and Voltmeter and Amp meter to indicate Output Line Voltage and Output Current with the help of selector switch. |
| 07) |
Frequency |
47 Hz to 53Hz ( Sinusoidal ). |
| 08) |
Input Indication |
High and low voltage indicators with Audible alarm. |
| 09) |
Output Wave Form |
The Out put wave form is true replica of the input. |
| 10) |
Correction rate |
25V/sec for each phase. |
| 11) |
Ambient Temperature |
0°c - 45°c. |
| 12) |
Type of Cooling |
Oil Cooled |
| 13) |
Type of Motor |
AC step synchronous Motor |
| 14) |
Protection |
1) A Circuit Breaker is provided at the output for over load /
short Circuit Protection. |
Optional Features
- Spike & surge suppressor is provided at the output.
- Over and under voltage trip facility and single phasing preventer with the help of a contractor system.
- By pass facility from main to stabilizers and stabilizers to main is provided.
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