Emerson K875A, MV Brochures and Data Sheets

Avtron K875A-MV

Resistive Medium Voltage Permanent Load Bank - 500 to 3000 KW

Testing Your Emergency Standby
Generator with a Load Bank Means
Reliability When it Matters Most.

Key Features

• Outdoor Installation

• Fully Supported Load
Elements

• No Cool Down Period
Required

• Vertical Air Discharge

• Slide Out Resistor Cases

• Integral Step-Down Transformer

Superior Avtron quality combined with
simple operation and maintenance will
provide years of trouble free service.

Avtron’s extensive line of Load Bank and
Industrial Resis tor Products are solid
performers used throughout the world.

The Avtron Model K875A-MV Load Bank is used for
resistive testing medium voltage power sources.

The Avtron K875A-MV load bank system provides a convenient and economical means of
testing power sources at utility voltages. Incorporating an integrally mounted step-down
transformer, the K875A-MV provides resistive load testing for power sources at 2400, 4160,
12,470, or 13,800 volts (other voltages are available). The single skid mounted load bank
system makes it practical for transportation and set up with single point termination of diesel
or turbine generator sets.

The load bank features vertical air dis charge for installation in areas where space is at a premium
such as the rooftops of high-rise buildings. Weatherproof exhaust hoods provide maximum
protection to the resistor cases and blower assemblies.

The K875A-MV incorporates state-of-the-art load bank design features and manufacturing tech­niques to provide years of trouble free service. This model utilizes a modular design with common
parts shared throughout the product range. This assures quick delivery, easy installation, and
simple operation and maintenance.

The K875A-MV load bank is used for resistive testing medium voltage power sources in factory
production lines or in the field after installation.

For total technical support or additional
information, please contact Avtron at
[phone] or [e-mail].

Quality System Certified to ISO 9001

K875A-MV 3000 KW
Skid-Mount Resistive
Medium Voltage
Avtron Load Bank
with Transformer.

Avtron K875A-MV

Resistive Medium Voltage Permanent Load Bank - 500 to 3000 KW

Specications subject to change without notice.

Construction

The load bank enclosure is constructed of
heavy gauge aluminized steel with stainless
steel ex terior fasteners. Vertical airflow pro­vides a compact footprint for tight installations.
The structural skid base is designed to support
the step-down transformer as well as the load
bank and interconnecting wiring to provide for
a single point connection for medium voltage
(5 or 15 KV) applications. The skid is provided
with lifting provisions at each corner.

Resistor Elements

The resistive elements are manufactured of a
corrosion resistant chromium alloy wire and
are fully supported with stainless steel rods for
long life.

Control Power

The K875A-MV requires 120 VAC, single phase
power which is derived from an integral control
transformer.

Cooling

The resistive elements are air cooled by inte­grally mounted blower motors rated at 10 HP,
460 VAC, 3 phase, 60 Hz. No additional cooling
period is required when load is removed.

Controls

The control panel is provided as a 19" [482.6]
rack-mount panel for remote mounting.
Controls include OVERTEMPERATURE light,
MASTER LOAD ON-OFF switch, and load step
ON-OFF toggle switches. An optional digital
metering package with data logging software
is available.

Protection

Secondary fusing is provided on the load side
of the step-down transformer to protect the
load bank feeder cable. The K875A-MV fea­tures branch circuit fusing on all load steps and
overtemperature protection. Differential pres­sure air switches on the blowers are electrically
interlocked to remove load if the airflow is not
sufficient to provide proper cooling.

Transformer

Outdoor construction, Dry-Type designed for
150° C rise (220° C insulation system) with sec­ondary fusing. Primary protection, disconnect,
or circuit breaker provided by others.

Options

• SIGMA™ Network Control

• ADMS™ Digital Metering (V, A, KW, Hz) with
Communicator EXT™ Data Logging Software

121.50

[3086.00]

12.60 [300.00]

81.00 [2057.00]

BASE MTG. HOLES

84.00

[2134.00]

1.50 [38.10]

4.00

[101.00]

Load Capacity Ratings

Available Load Step Resolution: 5 or 50 KW

Rated KW

500 2.4, 4.16, 12.47, or 13.8 KV

750 2.4, 4.16, 12.47, or 13.8 KV

1000 2.4, 4.16, 12.47, or 13.8 KV

1500 2.4, 4.16, 12.47, or 13.8 KV

2000 2.4, 4.16, 12.47, or 13.8 KV

3000 2.4, 4.16, 12.47, or 13.8 KV

NOTE Designs for international 50/60 Hz voltages or custom
DC designs are also available. Consult factory for exact
detailed weights and dimensions.

280.50 [7125.00]

BASE MTG HOLES

1.25 DIA 4 HOLES IN BOTTOM OF
FRAME AT 268.00 x 81.00
MOUNTING CENTERS

288.50 [7328.00]

All dimensions are in inches [millimeters].

Rated Voltages

(3 phase, 60 Hz)

3.50 [88.90] DIA
THRU FOR LIFTING

45.75

[1162.00]

92.14

[2340.00]

Emerson Network Power

Avtron • 6255 Halle Drive, Cleveland, Ohio 44125, U.S.A.

216-573-7600 • FAX: [phone] • [e-mail]

EmersonNetworkPower.com/loadbank

Emerson. Consider it Solved and Emerson Network Power are trademarks of Emerson Electric Co.

or one of its afliated companies. All the other marks are the property of their respective owners.

ADMS™ is a trademark of Avtron. SIGMA™ is a trademark of NJ Froment & Co. Ltd.

Specications subject to change without notice.

©2015 Emerson Network Power Bulletin 423• Rev. C