750KVA 600A Oil Type Transformer 13.8KV 110KV BIL Voltage Regulator

750KVA 600A Oil Type Transformer 13.8KV 110KV BIL Voltage Regulator

General:

VR-8 Single phase voltage regulators are tap-changing autotransformers. They regulate distribution line voltages from 10% raise(boost) to 10% lower(buck) in thirty-two steps of approximately 5/8% each. Voltage ratings are available from 2400V(60KV BIL) to 34,500V(200KV BIL) for 60Hz and 50Hz systems. Internal potential winding taps and an external ratio correction transformer are provided on all ratings so that each regulator may be applied to more than one system voltage. Smaller KVA sizes are supplied with support lugs for pole-mounting and with substation or platform tie down provisions. Larger sizes are provided with substation bases with pad-mounting provisions.

Application:

VR-8 voltage regulators are designed for reliable operation and ease of maintenance and are supplied with a full array of standard features for routine applications. Optional accessories are available to accommodate special applicate,it is also suitable for the energy saving projects for railway and urban grid.

Standard features:

SEL control box

• Tap changer with motor and power supply

• Position indicator with ADD-AMP adjustment

• Two laser-etched nameplate

• Lifting lugs

• Oil drain valve and sampling device

• Upper filter press connection

• Oil sight gauge

• Mounting provisions for shunt arresters

• High-creep bushings with clamp-type connectors

• Bolt-down provisions(overhead units)

• Substation base(substation units)

• External series arrester

• Automatic pressure relief device

• Control cabinet with removable front panel

• Ratio correction transformer

• Conformally coated circuit boards

• Shunt arresters

Optional accessories:

• Extra-length control cables

• Elevating structure

• 4-hole NEMA@H-spades

• Cooling fans

• Nameplate in alternate languages or metric units

• Internal differential potential transformer for complete reverse power flow w/metering

• SEL control accessories

• Multi-phase functionality

• Front panel overlays in alternate languages

• Serial communications interfaces:

-RS232

-Fiber Optic-ST

-RS485

• Ethernet communications interfaces:

-Fiber Optic-LC, MTRJ, ST and SC

-Copper-RJ45

• Communications protocols

Technical specification:

50Hz Rating:

60Hz rating:

VR-8 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:2500V(60KV BIL) through 34500V(200KV BIL)

• Current: 50 through 1665 Amps

• KVA: 33 through 1000

• Frequency: 50/60Hz

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 requirements,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.