ECOsine® high power passive harmonic filter modules
Compact cabinet filter for quick installation and
easy commissioning
Cost-effective enclosed passive harmonic filter
Optimized for motor drives with DC-link
chokes
Helps to comply with international power
quality standards
Supports an efficient utilization of electrical
system capacity
Filters for thyristor (SCR) rectifiers
Approvals
Typical application
Schaffner ECOsine filter cabinets can be applied to
virtually any kind of power electronics with front-end
six thyristor rectifiers, where harmonic current
distortion needs to be reduced to defined limits. The
compact filter cabinets can be easily commissioned
and quickly installed into extisting designs without
requiring an in-depth system analysis or highly
trained specialists.
Typical applications include higher power AC and DC
motor drives with either six thyristor used e.g. in
HVAC, water/wastewater, oil & gas, or mission critical
factory automation equipment. In addition, ECOsine
filters can help to reduce thermal and electrical
overload caused by harmonic currents in installations
involving UPS, high power rectifiers and other non-
linear three-phase power supplies.
Technical specifications
Nominal operating voltage
Operating frequency
Total harmonic current distortion THID*
Total demand distortion TDD
Voltage tolerance range
Nominal motor drive input power rating
Efficiency
High potential test voltage
Protection category
Cooling
Overload capability
Ambient temperature range
3x 380 to 500 VAC
50 Hz +/-1 Hz
~5% @ rated power with Ldc
<15% @ de-rated power without Ldc
According to IEEE-519
3x 342 to 550 VAC
200 to 400 kW
≥99% @ nominal line voltage and power
P –> E 2500VAC (2 sec)
IP 23 for -E2 type filters
IP 54 for -E5 type filters
Forced air
1.6x rated current for 1 minute, once per hour
-25°C to +40°C fully operational
-25°C to +85°C transport and storage
+40°C to +60°C de-rated operation**
Flammability according to
Design corresponding to
SCCR***
Earthing System
UL 94V-2 or better
UL 508c, EN 61558-2-20, CE (LVD 2006/95/EC)
100 kA
TN, TT, IT
*** System requirements: THVD <2%, line voltage unbalance <1%
** *Note:
SCR rectifier front-end will produce different results, depending upon the firing angle of the thyristors
*** Iderated = Inominal * √(85°C-Tamb)/45°C
*** External UL-rated fuses required
2
PQ/Harmonics
Schaffner Group
Datasheets
2016
Performance characteristics
THID – Total harmonic current
distortion
ECOsine high power passive harmonic filter
performance is optimized for rectifiers/motor drives
with a dc-link choke. In such applications, a THID of
roughly 5% can be expected. The use of a dc-link
choke is highly recommended. In a system without
L
dc
, the filter module has to be derated to max. 70% of
its nominal power rating. In such applications, a THID
of 10…15% can be expected.
Displacement power factor
At full load, ECOsine filters yield unity power factor.
At lower load levels, the capacitive current into the
power capacitors of the trap circuit cause a leading
displacement power factor. This is the case with all
types of passive filters with large capacitors. However,
compared to traditional filters the useful range of
Schaffner ECOsine is much extended (cos phi >0.9
from 35 to 100% of rated load).
ECOsine filters allow for trap disconnect at light load
to avoid low DPF situations if required. This feature
can be provided by the installer using a capacitor
contactor of suitable size for the trap circuit.
DC-link voltage
ECOsine harmonic filters have a very low impact on
the dc-link voltage of the motor drive. The voltage
variation as function of the load is represented in the
performance diagram beside. Tolerances are kept
narrow in order to ensure that motor drives do not
suffer from noise tripping because of under- or over-
voltage conditions.
3
PQ/Harmonics
Schaffner Group
Datasheets
2016
Filter selection table (-E2)
Filter
Rated load power*
@ 400 VAC/50 Hz
[kW]
FN 3411-380-99-E2
FN 3411-470-99-E2
FN 3411-580-99-E2
FN 3411-650-99-E2
FN 3411-710-99-E2
200
250
315
355
400
Rated load power*
@ 500 VAC/50 Hz
[kW]
250
315
355
400
450
Typ. power loss
@ rated load
[W]
1040
1370
1540
1550
1680
Weight
choke module
[kg]
120
135
160
215
250
[kg]
240
264
291
371
408
Weight total
* Power rating for motor drives with dc-link chokes. If no Ldc is available, load power of the filter has to be de-rated to 70% of the specified value above
In this case, the THID will be between 10-15%
Filter selection table (-E5)
Filter
Rated load power*
@ 400 VAC/50 Hz
[kW]
FN 3411-380-99-E5
FN 3411-470-99-E5
FN 3411-580-99-E5
FN 3411-650-99-E5
FN 3411-710-99-E5
200
250
315
355
400
Rated load power*
@ 500 VAC/50 Hz
[kW]
250
315
355
400
450
Typ. power loss
@ rated load
[W]
1040
1370
1540
1550
1680
Weight
choke module
[kg]
120
135
160
215
250
[kg]
243
267
294
374
411
Weight total
* Power rating for motor drives with dc-link chokes. If no Ldc is available, load power of the filter has to be de-rated to 70% of the specified value above
In this case, the THID will be between 10-15%
Application
ECOsine filters are best installed directly at the input of 6 thyristor (SCR). It is possible to connect several non-linear loads (e.g. motor drives) in parallel. In this case the
rating of the filter must match the sum of the power ratings of loads connected to it.
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