Three Phase Static Stabilizers

VEPL – Ultra Fast Series Static voltage stabilizer is automatic voltage regulator with no moving parts 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 in response time 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.

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Application:

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

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Product Details:

• Duty: Industrial Continuous
• Phase: Three Phase
• Output Voltage: 415 V
• Dimension: Mentioned in Catalogue
• Cooling Type: Air Cooled
• Power Efficiency: Over 97 %
• Ambient Temperature: 0 to +45 Degree C
• Regulator Circuit: High Frequency 20 KHz IGBT Driven Voltage Regulation Convertor
• Speed Of Correction: 20 milliseconds
• Regulation Mode: +/- 13% +/-20%
• Minimum Input Voltage: 360 VAC(Ph-Ph) 320 VAC(Ph-Ph)
• Maximum Input Voltage: 470 VAC(Ph-Ph) 480 VAC(Ph-Ph)
• Minimum Capacity: 10 kVA
• Maximum Capacity: 500 kVA

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