AVR an electronic programmable device, which can set the Output Voltage of the transformers. The Output Voltage of the transformer is fed into the AVR through the LT voltage. The AVR compares the SET voltage & the Output Voltage and gives the error signals, if any, to the OLTC through the RTCC Panel for tap changing.
MACPOWER offers four different variants as follows…
1. AUTOMATIC VOLTAGE REGULATOR (VR 02)
2. AUTOMATIC VOLTAGE REGULATOR (VR 04)
3. AUTOMATIC VOLTAGE REGULATOR (VR 05)
4. OLTC Controller (VR07)
AUTOMATIC VOLTAGE REGULATOR (VR 02)
• Auxiliary Input supply: 110V AC
• PT Supply :110V AC
• Nominal value Adj. 99_121V
• Lower Relay Setting (LRS): 0.5 – 5V (Max.)
• Raise Relay Setting (RRS) :0.5 – 5V (Max.)
• UV Blocking: 80%
• Restoration: 85%
• OV Blocking: 109-137V
• On Delay Setting: 02-120 seconds
• Time Delay: 05-120 sec. max
• Size (Panel Cut Out) :138x178mm
AUTOMATIC VOLTAGE REGULATOR (VR 04)
• Auxiliary Input supply: 110V AC
• PT Supply: 110V AC
• Lower Relay Setting (LRS): 95-120V
• Raise Relay Setting (RRS) :90-115V
• Time Delay : 10-120 Sec
• Under Voltage: 80%
• OV Blocking :105-125
• OV Time Delay :2-10Sec
• Size (Panel Cut Out): 90x184mm
AUTOMATIC VOLTAGE REGULATOR (VR 06)
• Auxiliary Input supply: 110V AC
• PT Supply: 110V AC
• Lower Relay Setting (LRS): 95-120V
• Raise Relay Setting (RRS) :90-115V
• Time Delay : 10-120 Sec
• Under Voltage: 80%
• OV Blocking :105-125
• OV Time Delay :2-10Sec
• Size (Panel Cut Out): 90x184mm
• 1KOhms x 16 No Resistance Input for TPI
AUTOMATIC VOLTAGE REGULATOR (VR 07)
• PT Supply: 110V AC
• Lower Relay Setting (LRS): 95-120V
• Raise Relay Setting (RRS) :90-115V
• Time Delay : 10-120 Sec
• Under Voltage: 80%
• OV Blocking :105-125
• OV Time Delay :2-10Sec
• Size (Panel Cut Out): 90x184mm
• 1KOhms x 16 No Resistance Input for TPI
• Auto/Manual Selection