SolaHD Product Manual: Solatron Three-Phase Voltage Regulator — 20, 30, 50, 75 kVA, A272-094 Manuals & Guides

Three-Phase Power Conditioner

Solatron™: Three-Phase Voltage Regulator —
20, 30, 50, 75 kVA

Solatron™: Three-Phase Voltage Regulator — 20, 30, 50, 75 kVA

CONTENTS

Important Safety Instructions � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 1

Receiving and Unpacking � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 2

Moving and Lifting � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �2

Storage � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �2

Installation � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �3

Mechanical Considerations � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 3
Electrical Considerations � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 4
To Maintain UL1012 Listing � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 5
Lug Size Tables � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 5

To Install the Solatron™ Unit � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 6

Startup � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 7

Normal Operation � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 7

Automatic Internal Bypass � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 8

Circuit Breaker Operation � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 9

Surge Suppression � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �9

Alarms � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 9

Remote Alarm Relay Dry Contacts� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 9

Status Indicator Lights � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 10

Maintenance � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 10

General Condition � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 10

Maintenance Log � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 11

Troubleshooting Table � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 12

Specifications � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 13

Technical Support � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 14

Warranty � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 14

FIGURES

Figure 1: Component Layout � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 3
Figure 2: Overview � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 4
Figure 3: Status Indicators � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 4

Solatron™: Three-Phase Voltage Regulator — 20, 30, 50, 75 kVA

Important Safety Instructions

The Solatron™ unit and related equipment must be installed, operated, and maintained in accordance with
this manual� After complying with all of the information in this manual, it should be saved for future reference�

!

WARNING

Failure to follow all instructions herein will cause death, severe injury, or significant equipment
damage, and void the unit warranty�

• Only properly qualied and trained personnel should be permitted to install, service, and operate

this equipment� Follow all safe electrical work practices� Use all applicable personal protective
equipment (PPE)�

• The unit is intended to be installed where it is not accessible to the general public� Access to this

equipment must be limited to properly qualied and trained personnel.

• Dangerous and potentially lethal voltages are present inside the enclosure of the unit; the hazard of

electric shock, arc ash, and explosion are present.

• Under no circumstances should anyone be permitted to operate or energize the unit without all covers

in place, doors closed, and all safeguards in place�

• Under no circumstances should anyone be permitted to reach into or perform any action within the

enclosure for maintenance, decommissioning, or other purposes without properly de-energizing and
grounding the unit� The transformer coils must be discharged of any potential static charge�

• The unit must be installed in accordance with all applicable federal, state, and local codes�

• The unit enclosure must be properly grounded using the provided ground connections�

• The unit must be installed a safe distance from any combustible material unless separated and shielded

by appropriate re resistance and heat dissipative barriers in accordance with the National Electrical
Code™ (NEC™) and all applicable local codes.

• The unit must only be installed in locations suitable for the level of protection afforded by the

enclosure type�

• No claim is made that these instructions cover all possible details or variations in unit manufacture or

address all possible contingencies that might be encountered during the installation, operation, or
maintenance of the unit�

• All questions, concerns, informational needs, or problems that arise regarding receiving, unpacking,

moving, lifting, storing, installing, operating, or maintaining the unit which are not sufciently

addressed herein should be referred to SolaHD�

Page: 1

Solatron™: Three-Phase Voltage Regulator — 20, 30, 50, 75 kVA

Receiving and Unpacking

Prior to removing any shipping or packing material, the unit must be immediately inspected upon receipt for
any indication of damage sustained during shipping� During unpacking, inspect the inside and outside of the
unit for any dents, scrapes, bent or loose parts, water entry, moisture, or any other signs of damage� If there is
any reason to believe that the unit has been damaged:

• Note the damage on the shipping documentation and notify the carrier.

• Document and photograph any damage found�

• Contact the shipping company to le a claim if necessary or SolaHD Customer Service.

Moving and Lifting

The Solatron™ unit must be lifted by the base only using a pallet jack or forklift�

!

WARNING

Failure to follow all instructions herein will cause death, severe injury, or significant equipment
damage, and void the unit warranty�

• The center of gravity may not be in the center of the unit�

• Use appropriate procedures for handling unbalanced loads�

• Do not lift the Solatron™ from the top�

• Ensure that the capacity of the lifting equipment is appropriately sized for lifting and moving

the Solatron™�

• Contact SolaHD Technical Support if there are any questions or concerns regarding moving or lifting

the unit�

Storage

!

WARNING

Failure to follow all instructions herein will cause death, severe injury, or significant equipment
damage, and void the unit warranty�

• Prior to installation, the Solatron™ must be stored in a location which prohibits the entry of liquid or

moisture into the enclosure�

• Condensation must not be allowed to form on the internal components�

• Contact SolaHD Technical Support if there are any questions or concerns regarding storage�

Page: 2

Solatron™: Three-Phase Voltage Regulator — 20, 30, 50, 75 kVA

Installation

!

WARNING

Failure to follow all instructions herein will cause death, severe injury, or significant equipment
damage, and void the unit warranty�

The Solatron™ unit must be installed in an area appropriate for industrial electrical equipment, which
includes but is not limited to the following characteristics:

• Concrete or other non-combustible, non-ammable oor adequate to support the weight of the unit.

• Adequate ventilation�

• Free from combustible or ammable materials, liquids, gases, or dust.

• Secure from unauthorized access by the general public�

• Consistent with the NEMA duty rating of the enclosure (NEMA 1).

• Contact SolaHD Technical Support if there are questions or concerns regarding installation�

Mechanical Considerations

Cable entry and exit must be made through the sides or top of the enclosure. Cable entry and exit

penetrations must be made by the end user� Debris from creating cable penetrations must not be allowed
on any component within the enclosure� The input and output connection locations and phase sequence are
shown in Figure 1�

The unit must be installed with the clearances shown in Figure 2�
Only the top, front, and rear enclosure panels are removable� The front panel can only be removed with the

input circuit breaker handle in the OFF (OPEN) position.

Remote Alarm

Contacts

Output

Input Circuit

Breaker

Auxiliary Circuit

Breakers

(CB2, CB3)

Distribution
Blocks

Control
Board

Figure 1: Component Layout

Front View

Page: 3

Solatron™: Three-Phase Voltage Regulator — 20, 30, 50, 75 kVA

6"

36"

36"

Status Indicator

Lights

See Detail A

12"

Figure 2: Overview

Mounting Holes

3/8" Clearance

Over-temp

Normal

Bypass

Detail A: Status Display Lights

25�5"

(4X)

(Front Panel)

25�25"

Figure 3: Status Indicators

Page: 4

Solatron™: Three-Phase Voltage Regulator — 20, 30, 50, 75 kVA

Electrical Considerations

The nominal input voltage applied to the Solatron™ unit shall be as listed on the unit nameplate� The nominal

operating frequency must match the nameplate frequency. The maximum continuous load must not exceed

the kVA nameplate rating� The unit must be grounded using the provided ground lugs�

!

WARNING

Failure to follow all instructions herein will cause death, severe injury, or significant equipment
damage, and void the unit warranty�

The unit must be installed in a location appropriate for industrial electrical equipment, which includes
but is not limited to the following characteristics:

• Compliance with IEEE 519�

• The input voltage waveform shall maintain 5% or less THD. If the THD percentage exceeds this value,

the unit’s performance may be adversely affected�

To Maintain UL1012 Listing

Each AC output power circuit shall be provided with overcurrent protection for all ungrounded conductors�
The voltage rating of the overcurrent protection shall not be less than the rating of the circuit which
with which it is used� The overcurrent protection device shall be a circuit breaker or a fuse evaluated

for use as branch circuit protection. The rating of the overcurrent protection device must meet NEC Article

240 requirements�
The output overcurrent protection devices are not included with the unit and must be provided by the end

user or purchaser� Failure to install the output overcurrent protection devices voids the UL1012 listing for
the unit�

Lug Size Tables

Input Circuit Breaker Lug Sizes (Copper wire only)

208V 240V 480V 600V

Cable

Range

20kVA #14-1/0 7Nm or 61.95in-lb. #14-1/0 7Nm or 61.95in-lb. #14-1/0 7Nm or 61.95in-lb. #14-1/0 7Nm or 61.95in-lb.

30kVA #14-1/0 7Nm or 61.95in-lb. #14-1/0 7Nm or 61.95in-lb. #14-1/0 7Nm or 61.95in-lb. #14-1/0 7Nm or 61.95in-lb.

50kVA #10-250mcm 14Nm or 123.91in-lb. #10-250mcm 14Nm or 123.91in-lb. #14-1/0 7Nm or 61.95in-lb. #14-1/0 7Nm or 61.95in-lb.

75kVA (2) 3/0-250mcm 18Nm or 159.31in-lb. #10-250mcm 14Nm or 123.91in-lb. #14-1/0 7Nm or 61.95in-lb. #14-1/0 7Nm or 61.95in-lb.

Cable

Range

20kVA #14-2/0

30kVA #14-2/0

50kVA #14-2/0

75kVA #4-500mcm 56.49Nm or 500in-lb. #4-500mcm 56.49Nm or 500in-lb. #14-2/0

Torque

208V 240V 480V 600V

Torque

#14-8: 5.6Nm or 50in-lb.
#6-2/0: 13.56Nm or 120in-lb.

#14-8: 5.6Nm or 50in-lb.
#6-2/0: 13.56Nm or 120in-lb.

#14-8: 5.6Nm or 50in-lb.
#6-2/0: 13.56Nm or 120in-lb.

Cable

Range

Output Distribution Block Sizes (Copper wire only)

Cable

Range

#14-2/0

#14-2/0

#14-2/0

Torque

Torque

#14-8: 5.6Nm or 50in-lb.
#6-2/0: 13.56Nm or 120in-lb.

#14-8: 5.6Nm or 50in-lb.
#6-2/0: 13.56Nm or 120in-lb.

#14-8: 5.6Nm or 50in-lb.
#6-2/0: 13.56Nm or 120in-lb.

Cable

Range

Cable

Range

#14-8: 5.6Nm or 50in-lb.

#14-2/0

#6-2/0: 13.56Nm or 120in-lb.

#14-8: 5.6Nm or 50in-lb.

#14-2/0

#6-2/0: 13.56Nm or 120in-lb.

#14-8: 5.6Nm or 50in-lb.

#14-2/0

#6-2/0: 13.56Nm or 120in-lb.

#14-8: 5.6Nm or 50in-lb.
#6-2/0: 13.56Nm or 120in-lb.

Torque

Torque

Cable

Range

Cable

Range

#14-2/0

#14-2/0

#14-2/0

#14-2/0

Torque

Torque

#14-8: 5.6Nm or 50in-lb.
#6-2/0: 13.56Nm or 120in-lb.

#14-8: 5.6Nm or 50in-lb.
#6-2/0: 13.56Nm or 120in-lb.

#14-8: 5.6Nm or 50in-lb.
#6-2/0: 13.56Nm or 120in-lb.

#14-8: 5.6Nm or 50in-lb.
#6-2/0: 13.56Nm or 120in-lb.

Page: 5

Solatron™: Three-Phase Voltage Regulator — 20, 30, 50, 75 kVA

To Install the Solatron™ Unit

!

WARNING

Failure to follow all instructions herein will cause death, severe injury, or significant equipment
damage, and void the unit warranty�

• The following instructions must be followed� Contact SolaHD Technical Support with any questions

or concerns�

1� Ensure that all electrical circuits are properly de-energized and locked out�
2� Locate and access the input and output terminal blocks or lugs�

3� Ensure that cable entry points comply with the appropriate NEMA rating of the enclosure (NEMA 1). Cable

entry points should not be made through removable or panels�

4� Ensure that the enclosure and internal components are not damaged when installing source and load

cabling�

5� Route and restrain the source and load cabling within the enclosure such that it is not in contact with any

components, surface, or sharp corners�

!

WARNING

Failure to follow all instructions herein will cause death, severe injury, or significant equipment
damage, and void the unit warranty�

• Note that all source and load wiring must be installed in accordance with all applicable federal, state, and

local codes�

6� If required, install appropriately rated remote alarm cabling� Refer to the Alarms section for details and

contact ratings�

7� After installation of the source and load wiring, inspect all wiring and internal components for any sign

of damage� Ensure that all connections are tight and wires are secure� Report any signs of damage to
components, connectors, or wiring insulation to SolaHD Technical Support prior to energizing the unit�

8� Ensure that the internal auxiliary circuit breakers (CB2 and CB3) are ON (CLOSED).
9� Replace all removable panels which were opened during installation�

!

WARNING

Failure to follow all instructions herein will cause death, severe injury, or significant equipment
damage, and void the unit warranty�

• Ensure that all retaining bolts are reinstalled�

Page: 6

Solatron™: Three-Phase Voltage Regulator — 20, 30, 50, 75 kVA

Startup

When powering the Solatron™ unit for the rst time, please follow these instructions to ensure normal
operation. Note that the unit has been fully tested and calibrated and requires no user adjustments during

startup or during normal operation� If there are any questions or concerns, please contact SolaHD Technical

Support immediately. If any of the checks during startup are not satisfactory, do not continue to the next step,

and refer to the Troubleshooting section or contact SolaHD Technical Support�

!

WARNING

Failure to follow all instructions herein will cause death, severe injury, or significant equipment
damage, and void the unit warranty�

• Ensure that all installation requirements have been met�

• All eld installed wiring must be complete and secure and the unit enclosure must be fully closed

and secured

1� Ensure that the input breaker is OFF (OPEN).

2� Turn ON the upstream source to apply voltage to the Solatron™.

3� Turn the input circuit breaker handle to the ON (CLOSED) position. This energizes the control

circuits and the transformers. After several seconds, the “Normal” light is illuminated indicating normal
operation. The “Bypass” and “Overtemp” lights are not illuminated indicating that there are no alarm

conditions�

The Solatron™ is now in normal operation mode and is supplying regulated voltage to the load�

Normal Operation

The Solatron™ is considered to be in normal operation mode when the load is supplied with regulated
voltage� The unit is in normal operation mode when the following conditions are met:

• The input circuit breaker is ON (CLOSED).

• The “Normal” status indicator light is illuminated.

If one or more of the normal conditions are not met, the load may not be supplied with power, or the power
supplied to the load may be unregulated�

While in normal operation, the Solatron™ automatically regulates the output voltage to within the output
voltage regulation range� The unit selects discrete transformer taps to regulate the output voltage�

Each phase of the Solatron™ is regulated independently to achieve optimum phase balance within the
regulation range�

When the unit changes taps, it is not unusual to see a change in output voltage equal to approximately the

total output regulation range� The output regulation range is +/-3%, so the output voltage may change up to

6% during a tap change. The resulting output voltage remains within the output regulation range.

Page: 7

Solatron™: Three-Phase Voltage Regulator — 20, 30, 50, 75 kVA

Automatic Internal Bypass

The unit has an automatic internal bypass mode included with the objective of protecting the switching
semiconductors in the event of failure modes which include but are not limited to:

• Semiconductor malfunction

• Severe over-currents

• Control board malfunction

• Power supply malfunction

The unit is in automatic internal bypass mode if either or both of the internal auxiliary circuit breakers (CB2 or
CB3) are tripped. In most cases, the power to the load is maintained, but the output voltage is not regulated.

The unit is in automatic internal bypass mode if all of the following conditions are met:

• The input circuit breaker is ON (CLOSED)

• The “Bypass” status indicator light is illuminated

!

WARNING

Failure to follow all instructions herein will cause death, severe injury, or significant equipment
damage, and void the unit warranty�

• Note that while the automatic internal bypass mode protects the Solatron™ unit and maintains power

to the load, it does not cover all possible contingencies or failure modes�

• The output terminals of the unit remain energized when in automatic internal bypass mode�

To return the Solatron™ unit from automatic internal bypass mode to normal operation mode:

!

WARNING

Failure to follow all instructions herein will cause death, severe injury, or significant equipment
damage, and void the unit warranty�

• The unit must be de-energized with the input breaker OFF (OPEN) before proceeding.

• Step 1 – Verify that there are no exposed voltages in the electronics compartment.

• Step 2 – Determine which auxiliary circuit breaker(s) have tripped.

• Step 3 – Reset each tripped breaker�

• Step 4 – Once all auxiliary circuit breakers are ON (CLOSED), replace all access panels and close all access

doors, and follow the instructions for returning the unit to normal operation (See Startup Section)�

Page: 8

Solatron™: Three-Phase Voltage Regulator — 20, 30, 50, 75 kVA

Circuit Breaker Operation

The input circuit breaker is mechanically operated by a handle on the front panel� To reset the input circuit

breaker, it must be turned OFF (OPEN) before it may be turned ON (CLOSED).

!

WARNING

Failure to follow all instructions herein will cause death, severe injury, or significant equipment
damage, and void the unit warranty�

• Do not operate the input breaker by any operating mechanisms other than those on the front panel

of the Solatron™�

Surge Suppression

The Solatron™ contains a transient voltage surge suppression device (SPD) unit which is wired to the input
circuit breaker load terminals�

Alarms

Remote Alarm Relay Dry Contacts

The Solatron™ unit provides dry relay contacts for remotely monitoring the operating condition. Note that the
dry relay contacts must be eld-wired, and no wire or cable is provided to make such connections.

The remote alarm contacts are one set of dry normally closed Form B contacts from a pilot relay available at
DIN terminal blocks labeled “Remote Alarm”. During normal operation, the relay is energized. The relay is

de-energized for conditions where the unit may require attention which includes:

• Automatic Internal Bypass mode (“Bypass” light is illuminated).

• High temperate (“Overtemp” light is illuminated).

• Input circuit breaker is OFF (OPEN).

• Loss of utility power�

• The unit is NOT in normal operation

Contact Ratings

Max� Switching Voltage 220VDC, 250VAC
Rated Current 2A

Switching Power 60W, 62.5VA
Min� Switching Voltage 100uV

30VDC, 2A, 60W (N.O. Only)

UL Contact Ratings

110VDC, 0�3A, 33W

220VDC, 0.27A, 60W
125VAC, 0.5A, 62.5W
250VAC, 0.25A, 62.5W

Page: 9

Solatron™: Three-Phase Voltage Regulator — 20, 30, 50, 75 kVA

Status Indicator Lights

The Solatron™ unit is equipped with three status indicator lights: “Normal”, “Overtemp”, and “Bypass”.

The function of the “Normal” light is to indicate that the unit is in normal operation mode.
The “Overtemp” light is an indication that the transformer coils may be overheating. If the “Overtemp” light

is illuminated, the unit requires immediate attention� The unit may require cleaning, may have been
overloaded, or may be in an environment with a high ambient temperature� Refer to the troubleshooting
section for more information�

The “Bypass” light is an indication that the unit is in automatic internal bypass mode. If the “Bypass” light is
illuminated, one or both of the internal auxiliary circuit breakers (CB2 and CB3) may need to be reset. Refer to

the troubleshooting section for more information�

Note that both the “Overtemp” and “Bypass” indicator lights activate the remote alarm contacts. If either of
the “Overtemp” or “Bypass” lights are illuminated, the unit is not in normal operation, and the “Normal” light

is not illuminated�

Maintenance

The following items should be addressed at least annually as part of a responsible maintenance routine� If
there are any questions regarding the functionality of the unit during any maintenance procedures, please
contact SolaHD Technical Support�

The included log should be used to log and record maintenance activities�

General Condition

!

WARNING

Failure to follow all instructions herein will cause death, severe injury, or significant equipment
damage, and void the unit warranty�

• The Solatron™ unit must be completely de-energized, including power on the line side of the input

circuit breaker and any remote alarm contact power�

• Failure to observe maintenance may degrade unit performance or cause load power interruption�

The entirety of the enclosure should be thoroughly examined for any signs of damage, moisture, or liquids.

All wires and cables should be inspected for signs of damaged insulation or overheating� SolaHD Technical
Support should be contacted if any of these signs are present� The enclosure should be free from dust and
debris� The unit should be cleaned in accordance with good cleaning practices for industrial electronic
equipment�

Page: 10

Solatron™: Three-Phase Voltage Regulator — 20, 30, 50, 75 kVA

Maintenance Log

Installation Date: ________________ Model #: _______________________ Serial #: ______________

Inspection/

Maintenance Date

Personnel

Inspections Performed/

Actions Taken

Troubleshooting

!

WARNING

Failure to follow all instructions herein will cause death, severe injury, or significant equipment
damage, and void the unit warranty�

• Refer to the Important Safety Information section prior to troubleshooting�

• The Solatron™ unit must be completely de-energized and locked out prior to troubleshooting�

In the event of alarm conditions or unexpected operation, please refer to the Troubleshooting Table on the
next page as a guide to return Solatron™ unit to normal operation. Note that while many conditions are

described, no claim is made that all possible contingencies are covered� If the Troubleshooting Table is unclear,
the condition is not listed, or the troubleshooting action does not remedy the condition, please contact
SolaHD Technical Support: 1-800-377-4384 Option #2 or email: solahd�technicalservices@emerson�com�

Page: 11

Solatron™: Three-Phase Voltage Regulator — 20, 30, 50, 75 kVA

Troubleshooting Table

Condition Possible Causes Troubleshooting Action

The external ambient temperature
exceeds the temperature rating

of the unit

The “Overtemp” indicator light is illuminated

The unit may have been overloaded

An auxiliary circuit breaker
may have TRIPPED

One or more semiconductor devices
may have failed

The “Bypass” indicator light is illuminated

The control board may have failed

The unit may have been overloaded

The input circuit breaker is TRIPPED The unit may have been overloaded

Take measures to reduce the
ambient temperature or prevent

excessive heating

Conrm that the load does not
exceed the nameplate rating of

the unit

Follow the steps in the automatic
internal bypass section to return
the unit to normal operation�
If the unit continually enters
internal automatic bypass mode,
please contact SolaHD Technical
Support�

Conrm that the load does not
exceed the nameplate rating of

the unit

Conrm that the load does not
exceed the nameplate rating

of the unit� Refer to the Circuit

Breaker Operation section for

resetting the circuit breaker�

The remote alarm contacts are closed

Page: 12

The unit may be in an alarm
condition or de-energized

Re-energize the unit or refer to
the status indicator lights on the
front of the unit�

Solatron™: Three-Phase Voltage Regulator — 20, 30, 50, 75 kVA

Specifications

Application

Model Number 63TXY3ZZ:

Nominal Input Voltage X = A (208V), B (240V), C (480V), D (600V)

Nominal Output Voltage Y = A (208V), B (240V), C (480V), D (600V)

Power Rating / Size ZZ = 20, 30, 50, or 75kVA

Phases - Frequency 3 phase, 60Hz nominal
Input Voltage Range +10% to -25% of nominal input voltage
Output Voltage Regulation +/-3% of nominal output voltage
Connections 3 Wire plus ground (Delta) input, 4 Wire plus ground (Wye) output

Operating Characteristics

Regulation Variation None - regulation constant for 0 to 100% load
Overload Capacity 1000% for 1 second, 500% for 5 seconds, 200% for 1 minute - 1000% fault clearing

Minimum Load No minimum load or part load limitations

Load Power Factor No limitations, compatible with all load types

Tap Switching No load current interruption on switching regardless of load or power factor
Zero Crossing Sensitivity Tap switching not dependent on determining load current zero crossing

Harmonic Distortion No distortion added regardless of load or power factor
Response Time 1 cycle typical regardless of load or load power factor

Efficiency 96% Typical
EMI <0�2 gauss at a distance of 3 feet
Insulation Resistance 100 megohms from winding to core measured at 500VDC
Operating Frequency ±3% of nominal frequency

Noise/Surge Suppression & Short Circuit Protection

Noise Attenuation 150 dB at 100kHz common mode; 65 dB at 100 kHz normal mode

Surge Suppression Included, complies with ANSI/IEEE C26.41
Input Circuit Breaker Included, standard

Automatic Bypass Internal auxiliary circuit breakers; No load interruption on activation

Construction

Technology Electronically-controlled tap switching with series transformer

Switching Semiconductors Non-full power semiconductors - individual SCRs do not carry full unit current
Controls Microprocessor-based control, RMS based measurements

Cooling Natural Convection
Transformer Isolation: Delta-Wye

Enclosure NEMA 1

Environmental Requirements & Conditions

Audible Sound Level Meets or exceeds NEMA standards
Temperature - Humidity Ambient 32 to 104°F (0 to 40°C) - Relative humidity 0-95% non-condensing
Operating Altitude 0 to 10,000 ft� (3000m)

Page: 13

Solatron™: Three-Phase Voltage Regulator — 20, 30, 50, 75 kVA

The information in this manual is provided as a guide for installation, operation, and maintenance� It does not

affect or exceed our obligations under the Terms and Conditions of Sale�

Note that unit specications are subject to change without notice.

Technical Support

Website: www�solahd�com
Technical Support E-Mail: solahd�technicalservices@emerson�com
Toll-Free: [phone]

USA: [phone]

Warranty

Please see the “Terms & Conditions of Sale” document within the product packaging.

While every precaution has been taken to ensure accuracy and completeness in this manual, Appleton Grp LLC d/b/a Appleton Group
assumes no responsibility, and disclaims all liability for damages resulting from use of this information or for any errors or omissions�

Page: 14

Solatron™: Three-Phase Voltage Regulator — 20, 30, 50, 75 kVA

A272-094 Rev. 7 06/2019

The Emer son logo is a trademark an d service mar k of Emerson Ele ctric Co�
Appleton Grp LLC d/b/a Appleton Group� SolaHD is a registered trademark of A ppleton Grp LLC �
All othe r marks are the proper ty of their respecti ve owners� © 2019 Emers on Electric Co� All rights reserved�

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