6
Instruction Booklet
IB156002EN
Effective January 2022
Eaton HCU2/HCUn active harmonic
filter installation manual
EATON
www.eaton.com
Installation
For optimum performance in harmonic mitigation mode, adhere to
the following recommendations.
•
All harmonic generating loads must have a minimum 3%
line reactor or 3% DC choke installed
•
SCR based rectifiers are required to have a minimum 3%
line reactor
•
Notch depth: 10%, notch area; (AN): 13,667 V μs at 400 V
as per IEEE 519-2014, Annex C
•
No capacitors downstream of the Main CTs
CAUTION
RISK OF EQUIPMENT DAMAGE.
ADHERE TO DC CHOKE, SCR BASED RECTIFIER, AND CAPACITOR
PLACEMENT REQUIREMENTS.
FAILURE TO FOLLOW THIS INSTRUCTION CAN RESULT IN
EQUIPMENT DAMAGE.
If these recommendations are not followed, the target harmonic
level may not be met and equipment damage can occur.
Environmental requirements
Active filters are designed for indoor use only. They require
unrestricted exchange of environmental air to the inside of the
enclosure for proper cooling. Ensure that the environment meets
Pollution Degree 2, i.e., does not contain conductive particles,
significant amounts of dust, or corrosive or otherwise harmful
gases. Normally only non-conductive pollution occurs. Temporary
conductivity caused by condensation is to be expected.
CAUTION
RISK OF EQUIPMENT DAMAGE.
ENSURE THAT THE INSTALLATION LOCATION SATISFIES
ENVIRONMENTAL REQUIREMENTS.
FAILURE TO FOLLOW THIS INSTRUCTION CAN RESULT IN
EQUIPMENT DAMAGE.
If environmental requirements are not adhered to, malfunction and
possible destruction of the active filter may occur.
The active filter generates significant heat during operation.
See the product specifications in
Table 7
on
Page 23
for the
watt losses for each active filter model. Ensure that the room
where the active filter is mounted has adequate ventilation. Maintain
ambient temperature between 0 °C (32 °F) and 40 °C (104 °F)
with a maximum relative humidity of 95%, noncondensing, and
a maximum dewpoint of 37 °C.
The operating temperatures are maximum and minimum levels
the unit is designed to operate within. Operating above or below
these levels will result in the unit either shutting down or reduced
performance. The upper or lower limit should not be used as
ideal room temperature levels. System reliability and product life
expectancy will improve if temperature levels are maintained
between 20 °C (68 °F) and 30 °C (86 °F).
Physical installation
The active filter is provided standard as a UL
®
chassis mount unit.
The unit can be converted to a NEMA 1 with an optional conversion
kit. The following table describes each type.
Table 1 . Active filter
Enclosure type
IP00
NEMA 2
IP31
NEMA 12
IP54
Enclosure provided
No
Yes
Yes
Standard compliance: UL 508
No
Yes
Yes
Standard compliance: IEC 529
Yes
Yes
Yes
Unrestricted air exchange, protection against
contact with enclosed parts, protection
against limited amount of falling dirt, intake
of dust, and harmful particles
No
Yes
Yes
Protection against foreign bodies of these
diameters
No
Yes
>2.5 mm
Yes
>1 mm
Complete protection against touch and
protection against dust deposits
No
No
Yes
Protection against dripping water and
external condensation of non-corrosive
liquids
No
Yes
Yes
Protection against water from all directions
No
No
Yes
ote:
N
This list indicates minimum requirements. Complete descriptions of the
requirements are provided in the standards referenced in this list.
Standard units physical description
Table 2 . HCU2 physical description NEMA 2, NEMA 12, IP31, IP54
Active
filter
Cable
entry
Operating
temperature
Heat load (kW)
Weight kg (lb)
Exterior dimensions
H x W x D mm (inches)
60 A
Top or bottom
0–40 °C (32–104 °F)
1.3
277 (609)
2089 x 800 x 555 (82.24 x 31.50 x 21.85)
120 A
Top or bottom
0–40 °C (32–104 °F)
2.8
287 (631)
2089 x 800 x 555 (82.24 x 31.50 x 21.85)
200 A
Top or bottom
0–40 °C (32–104 °F)
5.4
397 (873)
2091 x 900 x 650 (82.32 x 35.43 x 25.60)
300 A
Top or bottom
0–40 °C (32–104 °F)
7.1
422 (928)
2091 x 900 x 650 (82.32 x 35.43 x 25.60)
ote:
N
Weight information is approximate and subject to change without notice
