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VEPL – Ultra Fast Series Static voltage stabilizer is automatic voltage regulator which does not include moving part inside it. Static Voltage Stabilizers regulate voltage value in milliseconds with 16-bit microcontroller digital signal processing technology, Stabilization is performed on true RMS voltage. Output Voltage is not affected by load power factor (cos∅) also load percentage 0% to 100% on individual phase. Basically, static Voltage Stabilizer is made of buck boost transformer, a conversion unit along with IGBT (Static Switches), voltage compensation on buck boost primary winding is performed by DSP based PWM control electronic board through IGBT modules. Instead of conventional auto transformer, control circuit adds and subtracts voltages thus compensating mains variations with response time in 20 milliseconds. As there are no moving parts inside the device that will worn and require maintenance over the time. However, in classic servo motor voltage regulators, there are moving and mechanical friction parts such as motors along with gear train, dead end limit switches, variable transformer carbon brushes and rotating wires. These moving parts wear over time and, accumulation of dust in between the parts can cause fault in a short time. In addition, when the machine work continuously under load, auto transformer surface may become heat and wear and even voltage interruptions occur. In other words, static voltage stabilizers guarantee’s reliable and long-term operation since the regulation is done statically, electronically at ultrafast speeds.
VEPL ULTRAFAST SERIES assures seamless operation of electronic machines by providing purest power through continuous pulse width modulation (PWM) switching of a buck-boost transformer using a convertor-inverter. The high frequency Insulated gate bi-polar transistor (IGBT) driven converter circuit takes the incoming ac power, measures against the nominal voltage and adds or subtracts voltage. 20,000 times per second, to achieve real-time compensation of voltage disturbances, sag or swell. All this is achieved within 20 milliseconds through seamless PWM compensation of voltage so that all voltage disturbances are corrected within ITIC curve for flawless operation of electronics.
Key SVR Technology Features and Consumer Benefits:
CNC & Robotics, Auto & Auto Ancillary, Oil & Gas, Textile Spinning, Processing, Knitting, Weaving, Engineering & Process Industry, Wood Cutting, Radar & Telecommunication, R&D, Testing, Diagnostics, Plastic Processing, Printing & Packaging, Building Management, Security & Surveillance
|Static Voltage stabilizers||Servo voltage Stabilizers||Tap changing Voltage Stabilizers|
|Technology||IGBT converterbased DSP controlled||Electromechanicalvariac based||Auto transformerwith SCR based tap control|
|Correction speed||2000V/sec||Typical 35V/sec||Slow|
|Correction time||Less than 10 msec||1000 ms - 5Sec||200 ms-1Sec|
|Cycle by cycle Voltage regulation||Yes||No||No|
|System protections||- Short circuit
- Over current
- Over/under voltage
|Overload capability||125% for 10 min
150% for 1 min
|Load protection capabilities||Excellent||None||None|
|Interrupts power path at the time of regulation||No||No||Yes|
|Power cycling transients||No||Yes||Yes|
|Dynamic load handling capability||Yes - suitable for all kind of loads||No||No|
|Regenerative load handling capability||Yes||No||No|
|Soft start features||Yes||No||No|
|Individual phase compensation||Yes||No||No|
|Communications for remote monitoring or SCADA compatibility||RS 485, Modbus, TCP/IP and others on request||none||none|
|Size||Very Compact||Bulky as its oil cooled||Compact|
|Maintenance||No||Yes||Yes (In case of Relay)|