Oil Immersed Step Voltage Regulator
Oil Immersed Step Voltage Regulator image
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Product Details
Silverstone Electric voltage regulators are designed for reliable operation and ease of maintianance and are supplied with a full array of standard features for routine applications. Optional accessories are available to accommodate special applicati it is also suitable for the energy saving projects for railway and urban grid.
Contact our distributor or factory representative for availability of other kVA sizes, voltage ratings, features, accessories and design standards not listed
Technical parameters
Silverstone Electric single-phase step voltage regulators are tap-changing autotransformers designed to automatically regulate distribution line voltages in a range of plus or minus 10% in 32 steps of approximately 5/8% each. The following ratings are available:
• Voltage: 2500 Volts (60 kV BIL) through 34500 Volts (200 kV BIL)
• Current: 50 through 1665 Amps
• KVA: 38.1 through 1000
• Frequency: 50 or 60 Hertz
Internal potential winding taps and/or an external ratio correction transformer are provided on all ratings so that each regulator may be applied within a range of system voltages.
A digital control system automatically operates the tap changer mechanism to maintain system voltage within desired limits. The control system is externally programmable to allow precise setting of control limits and provides sophisticated capabilities for special control require- ments, communication, and data logging.
Overhead type voltage regulators are supplied with support brackets for pole mounting and have bolt-down provisions for pad-mounted applications. Substation type voltage regulators are provided with rectangular substation bases. Elevating platforms are available as an option.
Standard Features
Designed and manufactured in accordance with all applicable IEC60076, ANSI/IEEEC57.15, C57.12.00, C57.12.20, C57.12.90, BS171, SABS 780 etc
Tap changer with motor and internal power supply
Laser-scribed andized aluminum nameplates
Lifting Lugs Stainless steel mounting provisions for shunt arresters
Porcelain bushings with threaded stud terminals Clamp-type connectors
Platform mounting provisions
Pole-type mounting brackets (250kVA and below)
External polymer series (bypass) arrester
Automatic pressure relief device
Inspection hand hole
Stainless steel ground bosses
Service condition
A) Suitable for both indoor or outdoor
B)Air temperature: Maximum temperature: +40; Minimum temperature: -25
C) Humidity: Monthly average humidity 95%; Daily average humidity 90%.
D) Altitude above sea level: Maximum installation altitude: 2000m.
E) Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.
F) No frequent violent shake
Note: Beyond those services condition should enquiry to manufacturer technical dept during order
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