Eaton HCU2 Quick start guide

Operational manual
Harmonic correction unit (HCU2)
and electronic VAR injector (EVI2) active lters

ii OPERATIONAL MANUAL MN156001EN October 2015 www.eaton.com
DISCLAIMER OF WARRANTIES AND LIMITATION OF LIABILITY
The information, recommendations, descriptions and safety notations in this document are based on Eaton’s experience and
judgment and may not cover all contingencies. If further information is required, an Eaton sales office should be consulted.
Sale of the product shown in this literature is subject to the terms and conditions outlined in appropriate Eaton selling
policies or other contractual agreement between Eaton and the purchaser.
THERE ARE NO UNDERSTANDINGS, AGREEMENTS, WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING WARRANTIES
OF FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILITY, OTHER THAN THOSE SPECIFICALLY SET OUT IN ANY
EXISTING CONTRACT BETWEEN THE PARTIES. ANY SUCH CONTRACT STATES THE ENTIRE OBLIGATION OF EATON. THE
CONTENTS OF THIS DOCUMENT SHALL NOT BECOME PART OF OR MODIFY ANY CONTRACT BETWEEN THE PARTIES.
In no event will Eaton be responsible to the purchaser or user in contract, in tort (including negligence), strict liability
or other-wise for any special, indirect, incidental or consequential damage or loss whatsoever, including but not limited
to damage or loss of use of equipment, plant or power system, cost of capital, loss of power, additional expenses in the
use of existing power facilities, or claims against the purchaser or user by its customers resulting from the use of the
information, recommendations and descriptions contained herein. The information contained in this manual is subject to
change without notice.

iii
Harmonic correction unit (HCU2) and electronic VAR injector (EVI2) active filters
OPERATIONAL MANUAL MN156001EN October 2015 www.eaton.com
Contents
SAFETY PRECAUTIONS ......................1
INTRODUCTION.............................2
Harmonic Correction Unit .................... 2
Electronic VAR Injector ...................... 2
OPERATION ................................3
Home Screen ............................. 3
User Login ................................ 3
System Status ............................. 3
Overall Status Screen...................... 4
Unit Information ........................ 4
System Information. . . . . . . . . . . . . . . . . . . . . . 4
Parallel Unit Status ........................ 4
Unit Configuration Screen .................. 4
Network Setup ......................... 5
Unit Setup............................. 5
Voltages and Temperature .................. 5
Voltages............................... 5
Temperatures .......................... 5
Unit Status .............................. 5
Metering ................................. 6
Currents ................................ 6
Fundamental Current ...................... 6
Performance............................. 7
Power .................................. 7
Waveforms ............................... 7
Available Scope Data ...................... 8
Phasor Diagram .......................... 9
Event Log ................................ 9
System Settings ...........................10
Compensation Mode Screen (HCU2 type) .....10
Compensation Mode Screen (EVI2 type).......11
Miscellaneous Settings ................... 12
Voltages ............................... 13
Parallel Configuration ..................... 14
Harmonic Enable (HCU2 type) .............. 14
Unit Settings ............................. 14
Basic Setup ............................ 15
CT configuration ......................... 15
Manual CT configuration................. 16
Automatic CT configuration .............. 16
Brightness and Advanced HMI Settings ...... 19
Input Configuration....................... 19
Output Configuration ..................... 20
External Interfaces ....................... 20
Modbus TCP/IP Address Setup ............... 21
Set up users with the User Manager .......... 21
Change a password ...................... 22
Delete a user ........................... 22
COMMISSIONING AND START-UP.............23
Commissioning the unit .................... 23
Adjust date and time ..................... 24
Check fan .............................. 24
System Integrity Test ..................... 24
Parallel System Setup .................... 26
External transformer ..................... 26
CT configuration ......................... 27
Manual CT configuration................. 27
Automatic CT Configuration .............. 28
System Mode Setup (HCU2 type)............. 30
System Mode Setup (EVI2 type).............. 30
Admin password setup ..................... 32
Test Run. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Catalog Numbering System ................. 34
TROUBLESHOOTING........................34
WARRANTY ...............................36

iv
Harmonic correction unit (HCU2) and electronic VAR injector (EVI2) active filters
OPERATIONAL MANUAL MN156001EN October 2015 www.eaton.com
Safety information
Important information
Read these instructions carefully and look at the equipment
to become familiar with the device before trying to install,
operate, service or maintain it. The following special
messages may appear throughout this bulletin or on the
equipment to warn of potential hazards or to call attention
to information that clarifies or simplifies a procedure.
The addition of either symbol to a “Danger” or “Warning”
safety label indicates that an electrical hazard exists which
will result in personal injury if the instructions are not
followed.
This is the safety alert symbol. It is used to alert you to
potential personal injury hazards. Obey all safety messages
that follow this symbol to avoid possible injury or death.
DANGER
DANGER indicates a hazardous situation which, if not
avoided, will result in death or serious injury.
WARNING
WARNING indicates a hazardous situation which, if not
avoided, could result in death or serious injury.
CAUTION
CAUTION indicates a hazardous situation which, if not
avoided, could result in minor or moderate injury.
NOTICE
NOTICE is used to address practices not related to
physical injury.
ote:N Electrical equipment should be installed, operated,
serviced and maintained only by qualified personnel.
No responsibility is assumed by the manufacturer
for any consequences arising out of the use of this
material.
A qualified person is one who has skills and
knowledge related to the construction, installation,
and operation of electrical equipment and has
received safety training to recognize and avoid
the hazards involved.
As standards, specifications and designs change
from time to time, please ask for confirmation of
the information given in this publication.

1
Safety precautions
OPERATIONAL MANUAL MN156001EN October 2015 www.eaton.com
Safety precautions
Installation, wiring, testing and service must be performed
in accordance with all local and national electrical codes.
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR
ARC FLASH
• Apply appropriate personal protective equipment
(PPE) and follow safe electrical work practices. See
NFPA 70E in the USA, CSA Z462, or applicable local
standards
• This equipment must be installed and serviced only
by qualified electrical personnel
• Do not exceed the device’s ratings for maximum
limits.
• Ground equipment using the ground connecting
point provided before turning on any power supplying
this device
• Turn off all power supplying this device and the
equipment in which it is installed before working
on the device or equipment
• After removing power, wait for 15 minutes to allow
the capacitors to discharge prior to opening the doors
or removing covers
• Always use a properly rated voltage sensing device to
confirm power is off
• Replace all devices, doors, and covers before turning
on power to this equipment
• Carefully inspect the interior for tools left behind
before closing and sealing the door
Failure to follow these instructions will result in death
or serious injury.

2
Introduction
OPERATIONAL MANUAL MN156001EN October 2015 www.eaton.com
Introduction
The product can be provided in either of two types, an
Harmonic Correction Unit (HCU2) or an Electronic VAR
Injector (EVI2). Both types are to be installed as described
in this manual. These products are both referred to as an
active filter in this manual. For the most part, operation is
the same for both types. Where there are differences, they
are indicated by [HCU2] or [EVI2] in the topic heading. For
example, the information in Harmonic Enable [HCU2 type]
on page 14 pertains to HCU2 type active filters.
Harmonic correction unit
Active Harmonic Filters (HCU2) are static power electronic
products that employ digital logic and IGBT semiconductors
to synthesize a current waveform that is injected into the
electrical network to cancel harmonic currents caused
by nonlinear loads. HCU2 employ current transformers
to measure the load current to determine the content of
harmonic current present. By injecting the synthesized
current, network harmonic currents are greatly mitigated,
thus reducing the heating effects of harmonic current and
reducing voltage distortion to permit other equipment to
operate properly and enjoy a long product life span.
HCU2 also have the ability to correct for poor displacement
power factor (DPF) and for mains current balancing. DPF
correction can be provided for either leading (capacitive) or
lagging (inductive) loads that cause poor DPF. Mains current
balancing is achieved by measuring the negative sequence
current present and injecting the inverse negative sequence
current to balance the current for the upstream network.
Electronic VAR injector
Electronic VAR injector (EVI2) are static power electronic
products that employ digital logic and IGBT semiconductors
to synthesize a current waveform that is injected into the
electrical network to cancel load induced poor displacement
power factor (DPF), phase current unbalance, and
flicker. DPF correction can be provided for either leading
(capacitive) or lagging (inductive) loads that cause poor
DPF. Mains current balancing is achieved by measuring the
negative sequence current present and injecting the inverse
negative sequence currents to balance the current for the
network. Flicker control is provided by rapid detection and
injection of reactive current (VARs) to prevent the reactive
current from over loading the network that causes rapid
voltage deviations identified as flicker.
EVI2 also have the ability to monitor the network voltage
on which they are connected and determine the proper
amount of VARs to either raise the network voltage or
lower it. EVI2 will inject leading VARs to raise the voltage
and lagging VARs to lower the voltage. Entry of appropriate
parameters will keep the network within its stated voltage
tolerance level.

3
Operation
OPERATIONAL MANUAL MN156001EN October 2015 www.eaton.com
Operation
This chapter provides information operation of the active
filter. It covers additional settings that you can configure after
commissioning. It includes descriptions of parameters and
information available on the display as well as event logs.
Home Screen
When first energized, the HMI displays the Home screen.
To return to the Home screen, press the Home icon at the
bottom on any of the screens. To change parameters, you
must be logged in as an Admin level user. From the Home
screen, you can access the following:
• System Status: Displays screens providing an overview
of the system status
• Metering: Displays screens that provide measured values
of the unit, system, and electrical distribution system
• Waveforms: Displays screens that graphically represent
various values measured
• Event Log: Displays a list of all events that occurred with
the unit
• System Settings:Allows changes to be made to the
system parameters. When operating in parallel, all
systems settings must match for each unit in the parallel
system
• Unit Settings: Allows changes to the unit parameters
• Commission Unit: Provides a step-by-step procedure to
commission the unit
Note: Once the unit is commissioned, you do not need
to perform this procedure again.
• User Login: This is where you log into the unit to change
parameters
• Start System/Stop System: This icon toggles between
Start System when inactive and Stop System when
active. Start System activates the unit, or in parallel
operation, it starts the entire system. Stop System
stops the unit, or in parallel operation, it stops the
entire system.
User Login
For information on setting up users, refer to Set up users
with the User Manager on page 21. To log in:
1. Press User Login.
2. Press the Username field. Type your user name on the
keypad and press Enter.
3. Press the Password field and enter your password.
4. Press Log In.
System Status
System Status screens display information on the unit’s
status. Also when installed as a parallel system, information
for the entire active filter system is provided. To navigate
through the screens, press the up or down arrow. To return
to the Home screen, press the Home icon. An active filter
operating as a standalone unit has four System Status
screens. Active filters operating in a parallel system have
five System Status screens.

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Operation
OPERATIONAL MANUAL MN156001EN October 2015 www.eaton.com
Overall Status Screen
The Overall Status screen provides information on the
status of the unit. When connected in parallel with other
active filters, it provides information on the status of the
entire parallel system.
Unit Information
Unit Status: Indicates whether the unit is in Run or
Stopped condition.
Unit Rating: Indicates the amperage rating of the unit.
Derating: Indicates if the unit has been derated by a
percentage.
Output: Indicates the total output current of the unit.
Unit ID: Indicates the unit unique identification number.
Each unit in a parallel system must have a unique unit ID.
System Information
System Status: Indicates the status of the system.
Available Cap: Indicates the total capacity of units in the
parallel system currently available, which includes all units
currently running (actively compensating) and units in
stand-by.
Active Cap: Indicates the total capacity of units in the
parallel system currently running (actively compensating).
Output: Indicates the output current of the system in
amperes.
Master ID: Indicates the unit ID of the unit that is currently
acting as the Master.
Priority: Indicates the priority group that is operating.
Parallel Unit Status
Parallel Unit Status displays when Network is selected in
System Settings, Parallel Configuration.
The Parallel Unit Status provide general operating condition
of each unit in the parallel system.
Selecting Synchronize System Settings synchronizes the
System Status settings for all networked parallel units in the
system.
Unit Configuration Screen
The Unit Configuration screen provides the configuration
information for the unit.
HMI Version: Displays the HMI software version that is
loaded on the HMI.
Control DSP Version: Displays the software version
installed on the Control DSP.
Protection DSP Version: Displays the software version
installed on the Protection DSP.

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Operation
OPERATIONAL MANUAL MN156001EN October 2015 www.eaton.com
Network Setup
IP: Displays the IP address for the TCP/IP Ethernet
connection.
Subnet: Displays the unit’s subnet address.
See Unit Settings on page 14 for instructions on
changing the Network Setup values.
Unit Setup
Unit Type: Indicates whether the unit is an active filter
or an electronic VAR compensator.
Unit Size: Displays the unit amperage rating.
Nominal voltage and frequency: Displays the system
nominal voltage and frequency settings.
CT Conn.: Indicates the number of CT’s connected to
the unit.
CT Ratio: Displays the CT ratio used.
CT Configuration: Indicates whether the CT’s are located on
the Source or Load side of the active filter system.
Voltages and Temperature
Voltages
Line Voltage: Displays the three-phase average of the
incoming line voltage to the unit.
Line Frequency: The measured source frequency.
DC Bus Top: The measured DC voltage of the top
DC bus section.
DC Bus Bot: The measured DC voltage of the bottom
DC bus section.
Temperatures
All temperatures are displayed in degrees Celsius.
Inlet: Unit’s inlet air temperature.
Unit Top: Outlet air temperature of the electronic
air section.
Control Board: Air temperature surrounding the Control
Printed Circuit Board.
IGBT L1: Temperature of phase L1 inverter IGBT.
IGBT L2: Temperature of phase L2 inverter IGBT.
IGBT L3: Temperature of phase L3 inverter IGBT.
Unit Status
Uptime: Elapsed time from the last energization.
Total On Time: Total time the unit has been energized.
Total Run Time: Total time the unit has been in Run
condition.
Average Output L1: Average output current for L1 phase.
Average Output L2: Average output current for L2 phase.
Average Output L3: Average output current for L3 phase.

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Operation
OPERATIONAL MANUAL MN156001EN October 2015 www.eaton.com
Metering
Currents
Total Load: Total load current in amperes RMS.
Load Harmonics: Total load harmonic current in
amperes RMS.
Output Harmonics: Harmonic current output of the unit in
amperes RMS for harmonic mitigation.
Output Fund: Output current at the fundamental frequency
for power factor correction and/or load balancing.
Total Output: Total output current of the unit in
amperes RMS.
Source: Total source current in amperes RMS.
Fundamental Currents
Reactive (PF): Displays per phase average reactive current
of the load and output in amperes RMS.
Negative sequence: Negative sequence current of the load
and output in amperes RMS.
Fund current Req: Fundamental current required per phase
to achieve set point.
Fund Current Out: Displays fundamental current produced
per phase.
Load Balancing: Indicates whether the Load Balancing
mode is ON or OFF.
PF Mode: Indicates that the Power Factor correction mode
is ON or OFF.