SVR-3 type Three phase Automatic Step voltage regulator
General
The SVR-3 type feeder automatic step voltage regulator is actually a three phase oil immersed auto-transformer with SVR controller and gathering sampling of voltage at signal, on load tap changer controlling device to achieve gird more efficient from adjust the load character by increase and decrease the voltage.
So This SVR is eqv. To a transformer equipped with on load tap changer with SVR controller sampling voltage and current data and on load tap changer steps from current transformer and voltage transformer and limit switches.
2. Operating environment
(1) Below an altitude of 2000m
(2) Ambient temperature: Max. temperature is +40℃ and the min. temperature is -25℃
(3) Outdoor wind speed shall not exceed 35m/s
(4) Pollution grade: Class II
(5) Earthquake horizontal acceleration is not greater than 3m/s2,, the vertical
acceleration is not greater than 1.5m/ s2, and the safety factor is more than 1.67.
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Item
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Parameter
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Rated voltage
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Under 6.9kV
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10kV up to 22kV
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Under 35kV
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Rated capacity
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Less than 4000kVA
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Less than 12500kVA
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Less than 24000kVA
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No of phases
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Three phase
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Cooling method
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ONAN
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Vector group
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Ya0
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Steps
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7/9/16* steps
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Mechanical life
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1000,000 times
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Electrical life
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50,000times
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Voltage scope
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20%, 30%,40%
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+High breaking capacity tap charger from self-developed technology, More reliable and more steps 2.5% each by Max 16 steps( totally 40%);
+With SVR type Smart controller, a self-developed technology, GPRS/GSM, Blue-tooth.
+With self-protection LOCK-OUT functions: Line fault, Overload, OverCurrent, Under-voltage
+With adjustable voltage datum and step scope limit, step draw delay, data setting.
