Eltroplan Revcon RHF Series User manual

ELTROPLAN - REVCON

Elektrotechnische Anlagen GmbH
Operating instructions filter module REVCON
®
RHF
Power range 4 ... 440kW
Nominal voltage 380V, 400V, 460V
500V, 600V, 690V
Issue 17/03

Contents
Operating instructions RHF
1
ELTROPLAN - REVCON

Elektrotechnische Anlagen GmbH
1 Important information .................................................................................. 3
1.1 About the operating instructions ..................................................................................... 3
1.2 Uses terms and definitions ............................................................................................... 3
1.3 SI units and symbo s.......................................................................................................... 4
1.4 Unit designation ................................................................................................................ 5
1.5 Lega regu ations ............................................................................................................... 6
1.6 Scope of supp y ................................................................................................................. 7
2 Safety instructions ........................................................................................ 8
2.1 Layout of the safety instructions ...................................................................................... 9
2.2 Genera safety guide ines................................................................................................ 10
2.3 For the safety responsib e persons ................................................................................. 12
2.4 Specification of the used wires ....................................................................................... 13
2.5 Remaining danger ........................................................................................................... 13
3 Introduction into the subject harmonics ......................................................14
3.1 The effect of harmonics in a power distribution system ................................................ 14
3.2 The negative effect of harmonics is twofo d .................................................................. 15
3.3 Harmonic imitation standards and requirements ......................................................... 15
3.4 Harmonic Mitigation ....................................................................................................... 19
4 Introduction into the subject filter modules.................................................20
4.1 Function princip e REVCON RHF ..................................................................................... 20
4.2 Harmonic ine fi ter for frequency converters ................................................................ 25
5 U- directives / Declaration of conformity ...................................................27
5.1 What is the purpose of EU-directives? ........................................................................... 27
5.2 What is the meaning of the CE- marking? ...................................................................... 27
5.3 EG-directive ow vo tage ................................................................................................. 27
5.4 Standards and permission .............................................................................................. 28
6 Selection of the right filter module and technical data .................................29
6.1 Ca cu ation ...................................................................................................................... 29
6.2 Worked samp e ............................................................................................................... 30
6.3 Characteristics ................................................................................................................. 31
6.4 Genera Data / Operation conditions ............................................................................. 32
6.5 Rating va ues ................................................................................................................... 34
6.6 Item numbers and ampacity RHF ................................................................................... 35
6.7 Cab e cross section .......................................................................................................... 39
6.8 Genera information ....................................................................................................... 39
6.9 E ectrica operating conditions RHF ................................................................................ 40
6.10 A ocation of the fans ...................................................................................................... 47
6.11 Dimension diagrams ....................................................................................................... 53
7 Installation ..................................................................................................61
7.1 Mechanica insta ation ................................................................................................... 61

Contents
2 Operating instructions RHF
ELTROPLAN - REVCON

Elektrotechnische Anlagen GmbH
7.2 Internationa protection rating ....................................................................................... 62
7.3 Specified mounting position ........................................................................................... 63
7.4 The air venti ation ........................................................................................................... 64
8 lectrical installation ....................................................................................65
8.1 Network configuration / Net conditions ......................................................................... 65
8.2 Operation princip e RHF .................................................................................................. 66
8.3 Wiring diagram RHF ......................................................................................................... 67
8.4 Line connection ................................................................................................................ 70
8.5 Fuses ................................................................................................................................ 71
8.6 Insta ation in a CE- typica drive system ......................................................................... 73
8.7 Insta ation ....................................................................................................................... 74
8.8 Insta ation of a EMC- conform e ectrica enc osure ....................................................... 75
8.9 Note ................................................................................................................................. 76
9 Commissioning .............................................................................................77
9.1 First switching-on ............................................................................................................ 77
10 Capacitor disconnection..............................................................................78
11 Option Nema 1- enclosure ..........................................................................81
12 R VCON
®
product overview ........................................................................85
13 Contact ........................................................................................................86
14 Index and directory .....................................................................................87
14.1 List of figures ................................................................................................................... 88
14.2 List of tab es .................................................................................................................... 89

Important information
Operating instructions RHF
3
ELTROPLAN - REVCON

Elektrotechnische Anlagen GmbH
1 Important information
1.1 About the operating instructions
•These present operating instructions are the translation of the original instructions,
which were composed in the official EU language German.
•These operating instructions shall ensure safe operation of and with the filter mod-
ule REVCON

RHF. They contain security advices which must be observed and
information which is necessary for an undisturbed operation of the units and for
the exploitation of all advantages of the system.
•All persons who work on and with the filter module REVCON

RHF must have ac-
cessible the operating instructions, or the equal chapters of the operating instruc-
tions for other with this option equipped REVCON

products available. All per-
sons must follow the relevant notes and designations.
•The operating instructions must be complete and perfectly legible.
1.2 Uses terms and definitions
Filter module
For “Filter module REVCON

RHF“ the term “Filter module“ is used in the follow-
ing chapters, if the designation refers to all types (A, B).
For different characteristics, the complete marking (for example RHF-A) is used.
Drive system control
For the frequency convert which is used together with the filter module,
the term “Controller” is used.
Drive system
For a drive system with filter modules, controller and other components of the
drive system in the following the term “Drive system“ is used.

Important information
4 Operating instructions RHF
ELTROPLAN - REVCON

Elektrotechnische Anlagen GmbH
1.3 SI units and symbols
Prefix
Symbol
Prefix
Symbol
10
24
Yotta Y 10
–
1
Deci d
10
21
Zetta Z 10
–
2
Centi c
10
18
Exa E 10
–
3
Mi i m
10
15
Peta P 10
–
6
Micro µ
10
12
Tera T 10
–
9
Nano n
10
9
Giga G 10
–
12
Pico p
10
6
Mega M 10
–
15
Femto f
10
3
Ki o k 10
–
18
Atto a
10
2
Hecto h 10
–
21
Zepto z
10
1
Deca da 10
–
24
Yocto y
Measure Name
Electromagnetic compatibility EMV
Direct current DC
Motor nominal frequency f
M,N
Motor power rating P
M,N
Motor nominal voltage U
M,N
Motor nominal current I
M,N
Nominal current RHF module I
R
MS
Power input current I
FC,L
Revolutions per minute min
-1
Alternating current AC
Measure Name
Ampere A
Speed n
Farad F
Frequency f
Degree Celsius °C
Gramm g
Henry H
Hertz Hz
Magnetic flux density T
Meter m
Minute min
Newton meter Nm
Second s
Thermodynamic temperature K
Volt V
Resistor, electrical Ω
Real power W
Efficiency factor η

Important information
Operating instructions RHF
5
ELTROPLAN - REVCON

Elektrotechnische Anlagen GmbH
1.4 Unit designation
RHF - Y 30 - XXX – XX – XX
Protection category
Frequency
Connection voltage e.g.: 400 (3 x 400V AC)
Nominal current of the filter module
A=THDI ≤16% (at THD U ≤2%)
B=THDI ≤10% (at THD U ≤2%)
RHF=REVCON

filter module
Example: Nameplate RHF-A 72-400-50-20-A:
REVCON
®
Serien-Nr. / Serial no. 08/10 RHF-A 72-111
Artikel-Nr. /Article no. 25010007
Type / Type RHF-A 50- 400-50-20-A
Spannung / Voltage 3 x 400 VAC/50Hz
I
eff.
72 A
I
eff max.
108 A
Umgebungstemp. / Ambient Temp. Max 45°C
Schutzart / Protection IP 20
geprüft / tested ________________
ELTROPLAN-REVCON GmbH Made in Germany
Figure 1: The REVCON
®
RHF nameplate

Important information
6 Operating instructions RHF
ELTROPLAN - REVCON

Elektrotechnische Anlagen GmbH
1.5 Legal regulations
Marking
Name plate
CE
-
marking
Manufacturer
Filter modules REVCON

RHF are
clearly marked by the content of the
nameplate
Conformable
to EG directive “low-voltage“
ELTROPLAN-REVCON
Edisonstraße 3
D-59199 Bönen
Trade mark
rights
The filter module REVCON

RHF is protected in the Federal Republic of Germany by utility patents.
Patent-Nr.: DE 3938654C1 und Patent-Nr.: 90123584.6-2207. Violation of this utility patent and
the verbalized trade mark rights will be prosecuted criminally.
Intended use
Filter module REVCON

RHF
•only to use under the terms of this operating instructions and the required operational conditions
•are components
– to reduce the harmonic distortions of the electrical network by specific B6 rectifiers and in-
verters
– to fit in a machine
– to assembly with other components to a machine together
•are electric equipment to assembly in a electrical enclosure or similar
•locked up operations rooms
•conform to the protection requirements of the EG directive “low-voltage “
•are no machines in terms of the EG directive “machines“
•are no household appliances, but components which are determined only for the further applica-
tion in commercial use
Drive system with filter module REVCON

RHF
•conform to the EG directive “Electromagnetic Compatibility“, if they are installed by the specifica-
tions of the CE-typical drive control system
•are applicable
– in the public electrical network and closed electrical networks.
– in the industrial sector and in living areas as well as in business units.
The responsibility for the compliancy of the EG directive with the machine application is one for
the user.
Liability
•The indicated information, technical data and notes in this operating instruction were updated at
the time of the printing. No demands for changing a delivered filter module can be asserted by
the information, figures and descriptions of these operating instructions.
•The represented process engineering notes in this operating instructions and circuit details are
suggestions, which transferability on the respective application must be verified. For the suitabil-
ity of the specified procedures and circuit suggestions accepts the ELTROPLAN-REVCON
GmbH no guarantee.
•The data in these operating instructions describe the characteristic of the products without ensur-
ing them.
•No Liability will be taken over for damages and malfunctions which result by:
– disregard of the operating instructions
– arbitrary changes on the filter module
– operating errors
– improper works on and with the inverter
Warranty
•Warranty conditions: Look at the sales - and delivery conditions of the
ELTROPLAN-REVCON GmbH.
•Immediately announce guarantee claims after the discovery of defects or faults
•The warranty expires in all cases, in which even no liability claims can be asserted.
Disposal
Material
R
ecycl
i
n
g
Disposal
Metal -
Plastic -

Important information
Operating instructions RHF
7
ELTROPLAN - REVCON

Elektrotechnische Anlagen GmbH
1.6 Scope of supply
•1 filter module RHF
•1 operating instructions
–After receipt of the delivery verify immediately, if the scope of supply corre-
spond to the shipping documents. We make no warranty for later complained
defects
– Complain
•visible damages in transit immediately at the deliverer
•visible defects / incompleteness immediately at ELTROPLAN REVCON

Safety instructions
8 Operating instructions RHF
ELTROPLAN - REVCON

Elektrotechnische Anlagen GmbH
2 Safety instructions
Safety- and application instructions
for propulsion converters
(in conformity with low- voltage directive 2006/95/EG)
1.
General
During the operation filter modules can own according to their
protection class live, blank and if necessary even movable
parts, as well as hot surfaces.
The hazard of severe person or property damage exists at not
permissible removal of the required coverage, at inadmissible
application, at false Installation or operation.
Further information can be learned from the documentation.
All works for transport for installation and commissioning as
well as maintenance has to be done by specialized staff (IEC
60364 or CENELEC HD 384 or DIN VDE 0100 und IEC-
Report 664 or DIN VDE 0110 and observe national accident
prevention regulations).
Specialized staffs in terms of these fundamental safety in-
structions are persons who are acquainted with installation,
assembly, commissioning and operation of the product and
who dispose through their work of the corresponding Qualifi-
cations.
2. Conventional application
Filter modules are components that are conventional for the
installation in electrical systems or machines.
At the installation in machines is the start-up of the filter mod-
ules (the start of the conventional operation) prohibited until it
is determined that the machine complies with the regulations
of the EG directive 2006/42/EG (Machine directive); EN
60204 is to observe.
The start-up (the start of the conventional operation) is only
allowed under compliance of the EMC-directive. The filter
modules comply with the requirement of the low- voltage di-
rective 2006/95/EG. The technical Data and also the data of
the connecting conditions have to be taken from the name-
plate and the documentation and they have to be necessarily
observed.
3. Transport, storage
Notes on transport, storage and appropriate handling must be
observed
At non-observance any warranty expires.
The power feedback unit has to be protected from inadmissible
stress.
The transport is only valid in original packaging and in the
thereon by pictograms marked transport position.
In particular during transport and handling no components are
allowed to be bent and / or isolating distances may not be al-
tered. The units are equipped with electrostatic sensitive de-
vices, which may be damaged by improper handling. There-
fore it has to be avoided to get in contact with electronic com-
ponents. If electronic components are damaged mechanically
the unit must not be put into operation, as it cannot be en-
sured, that all relevant standards are observed. Climatic con-
ditions must be observed according to prEN 50178.
These safety instructions have to be kept!
4.
Assembly
The Assembly and cooling of the devices must occur ac-
cordingly the instructions of the respective documentation.
The filter modules have to be protected of not permissible
stress. Particularly at transport und handling no compo-
nents must have to be bent and / or insulation distances be-
ing changed. The touch of electric components and con-
tacts is therefore to avoid. Electric components must not be
mechanical damaged or destroyed. (Under conditions
health hazards!).
At mechanical defects at electric and other components it is
not allowed to start up the device, because a compliance of
applied standards is not longer guaranteed.
5. Electrical connection
At live-line working on filter modules apply national accident
prevention regulations (VBG 4) must be observed. Before
any installation- and connection works the system must be
operated on dead voltage and accordingly must be secured.
The electric installation must be performed according to the
respective instructions (e.g. cable cross- section, fuses,
connection to the protective conductor). At usage of the fil-
ter module with drive system control without a safe discon-
nect from the supplying circuit (according to VDE 0100) all
control cables must be included in additional protective
measures (e.g. double insulated or shielded, grounded and
insulated).
Notes for the EMV-conform installation – like shielding,
grounding, arrangements of filter modules and the installing
of conductors – are located in the chapter “Installation of
these operating instructions”. These notes must even be
observed at CE-marked propulsion converters. The compli-
ance of the required limit values by the EMV- legislation is
up to the responsibility of the manufacturer of the system or
the machine.
6. Operation
After disconnect of the filter modules of the supply voltage,
it is not allowed to touch live-line device parts and line con-
nections because possibly charged capacitors must not be
touched immediately.
During the operation all covers and doors must be closed.
7. Service and Maintenance
The operation of the manufacturer must be observed.
Observe also the product specific safety- and application notes of these operating instructions!

Safety instructions
Operating instructions RHF
9
ELTROPLAN - REVCON

Elektrotechnische Anlagen GmbH
2.1 Layout of the safety instructions
All safety instructions are built uniformly:
•The pictogram marks the type of danger.
•The signal word marks the severity of danger.
•The legend marks the danger and gives notes, how to avoid the danger.
Used pictograms
Signal words
Warn
ing of
injury to
persons
Imminent danger
by current
Danger
!
Warns of an immediately imminent Danger.
Consequences by disregard:
Death or severe injuries
Warning of an
imminent danger
Warn
i
ng
!
Warns of a possible, very danger
situation.
Possible consequences by disregard:
Death or severe injuries
Dangerous
situation
Caution
!
Warns of a possible, dangerous situation.
Possible consequences by disregard:
Minor or small injuries
Warning of hot
surface
Warn
i
ng!
Warns of touching a hot surface.
Possible consequences by disregard:
Burnings
Warn
i
ng
o
f
property
damages
Harmful situation
Stop!
Warns of possible property damages.
Possible consequences by disregard:
Damage of the drive system or its surround-
ings
Useful
info
r-
mation and
application
notes
Information
Note
!
Marks a generally, useful note, tip.
If you follow it, you make the handling of the
filter module easier
Table 1: Layout of the safety instructions
Signal word
Legend
STOP

Safety instructions
10 Operating instructions RHF
ELTROPLAN - REVCON

Elektrotechnische Anlagen GmbH
2.2 General safety guidelines
•These safety guidelines make no demand to be complete.
•In case of questions and problems please confer with a technician of our compa-
ny.
•The filter module complies with the state of technology at date of delivery and is
considered as reliable basically.
•The data of these operation instructions describe the characteristics of the prod-
ucts, without assuring them.
•The filter module may cause danger of risk for persons, the filter module itself
and for other material assets, if
non qualified staff are working on and with the filter module
-the filter module is used improperly
•The Filter modules must be planned and commissioned so that they fulfil their in-
tended function in a proper installation, at intended use and at error-free opera-
tion and cause no danger for persons. This is valid even for their interaction with
the complete plant.
•The represented procedural notes and circuit details in these operation instruc-
tions have to be understood analogously and have to be verified to assign ability
to the current application.
•Operate the drive system only at perfect status.
•Changes to or modifications of the filter module are fundamentally prohibited.
They require in any event the confer with a technician of our company
•The granted guarantee from us expires, if the device is changed or (even partly)
dismantled, or if it is deployed in contradiction to our instruction.
•The installer of the plant must know the technical rules and guidelines and is re-
sponsible for the correct selection and arrangement of the electrical equipment .
•The operation of the filter module is only permitted on standard conform grids of
the electrical energy supply! Disregard can lead to reduction of the filter effect
and possibly to destruction of the filter module.

Safety instructions
Operating instructions RHF
11
ELTROPLAN - REVCON

Elektrotechnische Anlagen GmbH
•According to the corresponding standards and guidelines is the operation even at
for a short time overcompensated grids (cos ϕ≤ 1) respectively at compensation
plants without chokes is not permitted, because the otherwise caused by oscilla-
tion recurrent surges can damage all connected loads, particularly electronic
equipment for example drive controller and power feedback units .
Stop!
An undisturbed and safe operation of the filter module is only to expect under the ob-
servance of the following connection instructions.
At deviations of these guidelines in individual case malfunctions and dam-
ages could occur:
– Observe the grid voltage.
– Run power- and control lines separated (> 15cm)
– Use shielded / twisted control lines only
– Run the shielding riveted to PE!
– Ground the enclosure of drive, drive control, power feedback unit and filter mod-
ule safe. Connect Shielding of power lines riveted and extensive (Remove the
lacquer)!
– Ground the electrical enclosure or the plant to main ground star point sigmoid
(necessarily avoid ground loops!)
– The filter module is only determined for a solid connection, because particularly
at the application of interference filter leakage current of 3,5 mA appear. The pro-
tective earth conductor must average minimum 10 mm² copper, or one second
conductor must be ran electrical parallel to Ground (grounded neutral point sig-
moid).
STOP

Safety instructions
12 Operating instructions RHF
ELTROPLAN - REVCON

Elektrotechnische Anlagen GmbH
2.3 For the safety responsible persons
Operator
•Operator is every natural or legal person, which uses the drive system or in which
order the drive system is used.
•The operator respectively his safety representative must assure:
-That all relevant instructions, notes and laws will be abided
-That only qualified staff works on and with the drive system
-That the staff has the operating instructions at all respective works availably
-That non qualified staff must not work on and with the drive system .
Qualified staff
Stop!
Qualified staff means persons, that are entitled (by the safety responsible) due to their
training, experience, education, their knowledge in relevant norms, directives, accident
directives and operation conditions to execute the necessary works and to recognize
possible danger and to avoid it. (Definition of qualified staff IEC 364)
STOP

Safety instructions
Operating instructions RHF
13
ELTROPLAN - REVCON

Elektrotechnische Anlagen GmbH
2.4 Specification of the used wires
•The used wires must conform to the required specification on site
•The regulations about the minimum cross- section of PE-conductors must be ob-
served.
Connection:
•The connection has to be done by the terminals X1.1-X1.3 and X2.1-X2.3
•The temperature monitoring must be connected with the terminals A/B of the filter
module with the pulse stop of the converter.
Stop!
If this connection is not made at all or at least analogously (for example via an PLC),
the filter module may be damaged at constant overload operation.
Caution!
If this connection is not made at all or at least analogously (for example via na PLC)
and the installation instructions (chapter 8) are not observed, this may lead to a ther-
mal overload of the filter module and possibly to a smoke emission and/or a fire.
2.5 Remaining danger
Danger!
After switching off the electrical network, all connections could lead a dangerous con-
tact voltage for up to 10 minutes!
STOP

Introduction
14 Operating instructions RHF
ELTROPLAN - REVCON

Elektrotechnische Anlagen GmbH
3 Introduction into the subject harmonics
3.1 The effect of harmonics in a power distribution system
In figure 2 a transformer is connected on the primary side to a common point of cou-
pling PCC1 on the medium voltage supply. The transformer has an impedance Z
T
und
supplies a number of loads.
At a common coupling point PCCP2 all loads are connected. Each load is connected
through wires that have the corresponding impedances Z
1
, Z
2
und Z
3
:
Figure 2: The effects of harmonics
Harmonic currents drawn by non-linear loads cause distortion of the voltage because
of the voltage drop on the impedances of the distribution system. Higher impedances
result in higher levels of voltage distortion.
Current distortion relates to the device performance and it relates to the individual
load. Voltage distortion relates to system performance .It is not possible to determine
the voltage distortion in the PCC knowing only the load’s harmonic performance .

Introduction
Operating instructions RHF
15
ELTROPLAN - REVCON

Elektrotechnische Anlagen GmbH
The configuration of the distribution system and the relevant impedances must be
known to calculate the distortion in the PCC.
A commonly used term to describe the impedance of a grid is the short circuit ra-
tio Rsce, defined as the ratio between the short circuit apparent power of the
supply at the PCC (S
sc
) and the rated apparent power of the load (S
equ
).


 



with


 



and


  

3.2 The negative effect of harmonics is twofold
•Harmonic currents contribute to system losses (power cable, transformer etc.)
•Harmonic voltage distortion causes disturbances to other loads and increase
losses in other loads
3.3 Harmonic limitation standards and requirements
The requirements for harmonic limitation are:
•Application specific requirements
•Requirements from standards that have to be observed
The application specific requirements are related to a specific installation with
technical reasons for limiting the harmonics.
For example: A 250kVA transformer is connected with two 110kW motors. One is
connected direct and the other motor is supplied by a frequency converter.
If the other motor should also be supplied by a frequency converter, the trans-
former will, in this case, sized too small.
If the system should be retrofitted without changing the transformer, the harmonic
distortion caused by two drives must be mitigated using RHF filters.

Introduction
16 Operating instructions RHF
ELTROPLAN - REVCON

Elektrotechnische Anlagen GmbH
There are various harmonic mitigation standards, regulations and recommenda-
tions. Different standards are applied in different geographical areas and indus-
tries. The following standards that are applicable will be specified:
•IEC/EN 61000-3-2
•IEC/EN 61000-3-12
•IEC/EN 61000-3-4
•IEC 61000-2-2
•IEC 61000-2-4
•IEEE 519
•G5/4
IEC 61000-3-2:
The scope of IEC 61000-3-2 is equipment connected to the public low-voltage
distribution system with an input current up to and including 16 A per phase. Four
emission classes are defined: Class A through D.
IEC 61000-3-12:
The scope of IEC 61000-3-12 is equipment connected to the public low-voltage
distribution system having an input current between 16A and 75A.
The emission limits are currently only for 230/400V 50Hz systems and limits for
other systems will be added in the future. The emission limits that apply for drives
are given in Table 4 in the standard. There are requirements for individual har-
monics (5th, 7th, 11th, and 13th) and for THD and PWHD.

Introduction
Operating instructions RHF
17
ELTROPLAN - REVCON

Elektrotechnische Anlagen GmbH
IEC 61000-3-4:
Limits, Limitation of emission of harmonic currents in low-voltage power supply
systems for equipment with rated current greater than 16A.
The IEC 61000-3-12 supersedes IEC 61000-3-4 for currents up to 75A. Therefore
the scope of IEC 61000-3-4 is equipment with rated current greater than 75A con-
nected to the public low voltage distribution system. It has the status of a Tech-
nical report and should not be seen as an international standard.
A three-stage assessment procedure is described for the connection of equip-
ment to the public supply and equipment above 75A is limited to stage 3 connec-
tion based on the load's agreed power. The supply authority may accept the con-
nection of the equipment on the basis of the agreed active power of the load's in-
stallation and local requirements of the power supply authority apply. The manu-
facturer shall provide individual harmonics and the values for THD and PWHD.
IEC 61000-2-2 and IEC 61000-2-4: The IEC 61000-2-2 and IEC 61000-2-4 are
standards that stipulate compatibility levels for low-frequency conducted disturb-
ances in public low-voltage supply systems (IEC 61000-2-2) and industrial plants
(IEC 61000-2-4).
These low-frequency disturbances include harmonics, but are not limited to har-
monics.
The values prescribed in these standards should be taken into consideration
when planning installations. In some situations the harmonic compatibility levels
cannot be observed in installations with frequency converters and harmonic miti-
gation is needed.
IEEE519,:
IEEE519 establishes goals for the design of electrical systems that include both
linear and nonlinear loads. Waveform distortion goals are established and the in-
terface between sources and loads is described as point of common coupling
(PCC).

Introduction
18 Operating instructions RHF
ELTROPLAN - REVCON

Elektrotechnische Anlagen GmbH
IEEE519 is a system standard that aims the control of the voltage distortion at the
PCC to a THD of 5% and limits the maximum individual frequency voltage har-
monic to 3%. The development of harmonic current limits aims the limitation of
harmonic injection from individual customers so they will not cause unacceptable
voltage distortion levels and the limitation of the overall harmonic distortion of the
system voltage supplied by the utility.
The current distortion limits are given in Table 10.3 in the standard and depend on
the ratio ISC/IL where ISC is the short circuit current at the utility PCC and IL is the
maximum demand load current.
The limits are given for individual harmonics up to the 35th and total demand dis-
tortion (TDD). Please note that these limits apply at the PCC to the utility. While
requiring individual loads to comply with these limits also ensures the compliance
at the PCC, this is rarely the most economic solution, being unnecessarily ex-
pensive. The most effective way to meet the harmonic distortion requirements is
to mitigate at the individual loads and measure at the PCC.
If in a specific application it is required that the individual drive should comply with
the IEEE519 current distortion limits, an AHF can be employed to meet these lim-
its.
G5/4, Engineering recommendation, planning levels for harmonic voltage
distortion and the connection of nonlinear equipment to transmission sys-
tems and distribution networks in the United Kingdom:
G5/4 sets the Planning levels for harmonic voltage distortion to be used in the pro-
cess of connecting non-linear equipment. A process for establishing individual cus-
tomer emission-limits based on these planning levels is described.
G5/4 is a system level standard. For 400V the voltage THD planning level is 5%
at the PCC. Limits for odd and even harmonics in 400V systems are given in Ta-
ble 2 in the standard. An assessment procedure for the connection of non-linear
equipment is described. The procedure follows three stages, aiming to balance
the level of detail required by the assessment process with the degree of risk that
the connection of particular equipment will result in unacceptable voltage har-
monic distortion .
A RHF-filter should be employed to meet the requirements of G5/4.

Introduction
Operating instructions RHF
19
ELTROPLAN - REVCON
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Elektrotechnische Anlagen GmbH
3.4 Harmonic Mitigation
To mitigate the harmonics caused by the frequency converter 6-pulse rectifier
several solutions exist and they all have their advantages and disadvantages. The
choice of the right solution depends on several factors:
•The grid (background distortion, mains unbalance, resonance and type of
supply – transformer / generator)
•Application (load profile, number of loads and load size)
•Local / national requirements/regulations (IEEE519, IEC, G5/4, etc.)
•Total cost of ownership (initial cost, efficiency, maintenance, etc.)
IEC standards are harmonized by various countries or supranational organiza-
tions. All above mentioned IEC standards are harmonized in the European Union
with the prefix “EN”.
For example the European EN 61000-3-2 is the same as IEC 61000-3-2. The situ-
ation is similar in Australia and New Zealand, with the prefixes AS/NZS.
Harmonic solutions can be divided into two main categories: Passive and active
were the passive solutions consist of capacitors, inductors or a combination of
the two in different arrangements.
The simplest solution is to add inductors/reactors of typically 3% to 5% in front of
the frequency converter. This added inductance reduces the amount of harmonic
currents produced by the drive.
More advanced passive solutions combine capacitors and inductors in trap ar-
rangement specially tuned to eliminate harmonics starting from e.g. the 5th har-
monic.