Filters & Harmonics Conditioning

SINEWAVE

Active harmonics conditioners from 20 to 480 Amps

Invisible, Costly Pollution

Nonlinear loads absorb currents.

All currents are made up of:
the basic sinusoidal current (50 Hz, for example) called the fundamental (F) and,
sinusoidal "polluting" currents which are multiples of F (2F, 3F, 4F, 5F, ... nF ) called harmonics.

These harmonics are increasingly polluting the voltages used by production facilities, pumping stations, data processing systems, telecommunication switchboards, TV studios, etc. and consume a significant proportion of available current.

This gives power users three types of problem:

Impact on the electrical installation with significant overheating in alternators, transformers, capacitors and cables.....the hidden costs of accelerated ageing in this type of equipment can be extremely high
Impact on utilisation of equipment with unexplained power outages and malfunctions in equipment sensitive to power quality. These failures cost money and reduce the effect of capital investment - with a negative effect on the bottom line!
Impact on available electrical power as the current consumed by harmonics is totally lost and can cause up to 30% over-consumption. Utility bills soar even though there is less power available

Existing standards

Three sets of standards designed to reduce the spread of harmonic pollution now apply. These are:

Standards for Equipment
IEC 1000-3-2 or EN 61000-3-2 for low voltage appliances absorbing currents of under 16 A
IEC 1000-3-4 or EN 61000-3-4 for low voltage appliances or installations absorbing currents exceeding 16 A

Standards for Mains Supply Quality
EN 50160 defines the voltages supplied by utility low voltage networks
EEEI 519 (Recommended Practices for Harmonics Control in Electrical Power Systems) is a joint recommendation by utility operators and subscribers to limit the impact of non-linear loads through a joint effort to reduce harmonics

Compatibility Standards between Electrical Networks and Products
IEC 1000-2-2 and recommendations by CIGRE (Conférence Internationale des Grands Réseaux Electriques) for public low voltage networks
IEC 1000-2-4 for industrial installations using low and medium voltage. Utilities actively encourage preventive action to reduce electricity quality depreciations and overheating, and to increase the power factor

What makes Active Conditioners different?

The main advantages of active conditioners is that they continue to guarantee efficient harmonic compensation even when changes are made to the installation. They are also exceptionally easy to use as they feature:

Auto-configuration to harmonic loads whatever their order of magnitude
Elimination of overload risks
Compatibility with electrical generator sets
Connection to any point of the electrical network,
Several conditioners can be used in the same installation to increase depollution efficiency (for example when a new machine is installed)

How do Active Conditioners work?

Active conditioners analyse the harmonics drawn by the load and then inject the same harmonic current to the load with the appropriate phase. As a result, the harmonic currents are totally neutralised at the point considered. This means they no longer flow upstream and are no longer supplied by the source.

Where should Active Conditioners be installed?

Treating harmonics requires accurate, in-depth knowledge of the installation. In new installations we recommend calculating global harmonic distortion for various key points during the design phase. In existing installations it is often best to have an expert audit the site and prepare a full diagnosis. In all cases it is essential to define the main objective:

Either compliance with standards
In this case, the active conditioner must be placed upstream from the installation (with an "injection" point close to the utility supply network), or

Reduction in pollution level within the installation
In this case the solution is to neutralise harmonics as close as possible to the main nonlinear loads. Active conditioners should be located downstream (in the secondary switchboard or final distribution boards).

SineWave is the first 2nd generation active harmonics conditioner. We have unique experience in this field backed by a powerful, international development programme and the experience gained from the 1st generation conditioners launched in 1994. For installations from 10 to 2000 kVA, SineWave gives you the tomorrow's performance - today! Download a Datasheet here.

CLEANWAVE

Zero Sequence Harmonic Filters

Invisible, Costly Pollution

Harmonics are an ever-present safety risk and can disturb the operation of equipment

Non-linear loads, such as computers, safety lighting, fluorescent lighting, etc, are becoming ever more present and create high levels of harmonic current which can aded-up in the neutral, creating ever serious problems:

Overheating in cabling and electrical distribution equipment
Degradation of the power supply causing critical equipment to malfunction
Increased power consumption

Improved Safety and Reliability

CleanWave® eliminates neutral current and zero sequence harmonics:

Improves the safety of the electrical installation
Improves the power quality of the supply to the equipment
Removes the need for oversized electrical installations

Standards

The standards relating to harmonic currents are being tightened up.
New French standard NFC15-100
IEC 61000-3-2 Limits for harmonic current emissions, equipment ?16A
IEC 61000-3-4 Limits for harmonic current emissions, equipment >16A
G5/4 Recommendations for the limit of harmonics
IEEE 519 [2]

CleanWave® provides exceptional performance

Neutral current reduction factor of 10:1
Zero sequence harmonic attenuation factor of 10:1
Rebalances the 3 phase current
Patented technology eliminates capacitors for unmatched reliability
Filters can be paralleled

CleanWave®: the simple choice

CleanWave® filters are all built to the same basic design while offering a wide range of ratings to make CleanWave® a simple choice.

Simple and sure sizing
No special study required
Quick and easy installation
Multiple units can be used in the same AC distribution systems without risk of resonance or interference
Small size

Download a Datasheet here.

TOTAL HARMONIC MANAGEMENT

The complement dedicated to the Galaxy and Galaxy PW range

Elimination of UPS harmonic disturbances
-reduced THDI
-increased power factor
-increased cos phi
-operating cost savings
Compliance with IEC61000-3-4standard
Flexible and modular
Complete compatibility between UPS' and engine generator sets
Constant level of performance even at low UPS loads
Active Twelve Pulse Technology

Elimination of UPS harmonic disturbances
Reduced THDI
The THDI value indicates the level of harmonic currents upstream of UPSs. THM offer better performance than all other harmonic-suppression techniques
Increased power factor (PF) and cos phi
THM can be set to improve the cos phi value. The power quality obtained ensures optimum operation of theentire power supply system.

Constant level of performance even at low UPS loads
THM provides a virtually constant level of performance, whatever the percent load on the UPS. With this significant reduction in harmonics, it is possible to implement all system architectures, in particular parallel-connected configurations. In such configurations where the UPS does not supply its total capacity, THM maintains high level of performance, contrary to the double bridge technique.

Complete compatibility between the UPS and an engine generator set
An engine generator set installed upstream of the UPS is often the first equipment to suffer from harmonic disturbances. Due to its capacity to eliminate harmonics even at low percent loads, THM ensures optimum operation of engine generator sets.

Flexible and modular
Associated with group of UPS', THM reduces the footprint compared to traditional solutions.

Compliance with IEC standards
THM complies with the specifications of IEC guide 61000-3-4. Its performance exceeds requirements and even anticipates on the requirements of future standards.

Operating cost savings
Power consumption (kVA) may be reduced by up to 20%. This reduction makes it possible to:
-reduce the size of engine generator sets and cables
-enhance the operating reliability of circuit breakers
-reduce losses

Download a Datasheet here.