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:
CL-7 voltage regulator control (CE mark compliant)
Dual-rated 55/65 °C average winding rise
Measure load and source voltages
ADD-AMP™ capability
Sealed-tank construction
Pressure relief device
18" minimum-creep bushings with clamp-type connectors
MOV-type external series arrester
Shunt-arrester mounting bosses
Two aluminum, laser-etched nameplates
Insulating fluid 25 °C level sight gauge
Critical insulating fluid level site gauge
Upper filter press connection
Drain valve and insulating fluid sampling device
Internal differential potential transformer (IDPT)
Control cable quick connect/disconnect
Figure 1. Quick connect/disconnect cable
Available options
Available options include:
Extended-length control cable, lengths up to 120 feet
Armored control cable
Shielded control cable
Adjustable galvanized-steel elevating structure
Supplemental external fusing to prevent damage from
reverse polarity connection to the external-source
terminals
Shunt surge arresters
Insulating fluid thermometer with or without alarm
contacts
Insulating fluid level gauge with or without alarm contacts
Pressure and vacuum gauge with or without alarm contacts
Rapid pressure-rise relay
Stainless steel tank and cover
Envirotemp™ FR3™ insulating fluid
Tank and control enclosure ground connectors
Alternate top-coat color
External stainless steel hardware
Stainless steel control enclosure
Stainless steel nameplates
Substation base, below 167 kVA
Pole-mounting brackets, on 333 kVA
Wildlife guards
4-hole NEMA
®
spade bushing connectors
IEEE/IEC Standard universal control cable interface
2
VR-32 and EVER-Tap™ Voltage Regulator
InstallatIon, operatIon, and MaIntenance InstructIons MN225008EN June 2020
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