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Product information
Description
VR-32 and EVER-Tap single-phase step-voltage regulators
from Eaton operate to keep voltage levels within
programmed limits to improve power quality and are
compatible with SCADA and automation distribution
systems.
Available in pole-, platform-, and pad-mounted and
substation configurations, VR-32 voltage regulators are
suitable for three- or four-wire overhead and underground
systems. EVER-Tap voltage regulators are manufactured
primarily for installation in substations.
Eaton voltage regulators are regulating auto-transformers.
They regulate rated voltage from 10% raise (boost) to 10%
lower (buck) in 32 approximately 5/8% steps.
The 65 °C rise insulation system and the sealed-tank
construction allow for a bonus capacity 12% above the
55 °C nominal rating without loss of normal insulation
life. The bonus capacity is stated on the nameplate. For
example, A 167/187 kVA rating indicates a nominal rating of
167 kVA and a bonus capacity rating of 187 kVA.
Unit construction, which suspends the internal assembly
from the cover, allows for ease of inspection and
maintenance.
Eaton manufactures four types of step-voltage regulators:
source-side series winding (Type B), load-side series
winding (Type A), series transformer (Type TX), and series
auto transformer (Type AX). Eaton voltage regulators are
usually equipped with an equalizer winding. The nameplates
located on the tank and control box define the power
circuit.
Eaton voltage regulators are supplied with the following
standard features:
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CL-7 voltage regulator control (CE mark compliant)
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Dual-rated 55/65 °C average winding rise
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Measure load and source voltages
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ADD-AMP™ capability
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Sealed-tank construction
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Pressure relief device
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18" minimum-creep bushings with clamp-type connectors
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MOV-type external series arrester
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Shunt-arrester mounting bosses
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Two aluminum, laser-etched nameplates
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Insulating fluid 25 °C level sight gauge
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Critical insulating fluid level site gauge
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Upper filter press connection
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Drain valve and insulating fluid sampling device
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Internal differential potential transformer (IDPT)
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Control cable quick connect/disconnect
Figure 1 . Quick connect/disconnect cable
Available options
Available options include:
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Extended-length control cable, lengths up to 120 feet
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Armored control cable
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Shielded control cable
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Adjustable galvanized-steel elevating structure
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Supplemental external fusing to prevent damage from
reverse polarity connection to the external-source
terminals
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Shunt surge arresters
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Insulating fluid thermometer with or without alarm
contacts
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Insulating fluid level gauge with or without alarm contacts
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Pressure and vacuum gauge with or without alarm contacts
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Rapid pressure-rise relay
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Stainless steel tank and cover
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Envirotemp™ FR3™ insulating fluid
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Tank and control enclosure ground connectors
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Alternate top-coat color
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External stainless steel hardware
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Stainless steel control enclosure
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Stainless steel nameplates
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Substation base, below 167 kVA
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Pole-mounting brackets, on 333 kVA
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Wildlife guards
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4-hole NEMA
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spade bushing connectors
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IEEE/IEC Standard universal control cable interface
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VR-32 and EVER-Tap™ Voltage Regulator
InstallatIon, operatIon, and MaIntenance InstructIons
MN225008EN June 2020