We Save Power offers a wide range of devices available to improve the power supply quality and ensure the bestprotection to professional equipment which is highly sensitive to electrical disturbances. As a matter of fact, any equipment needs correct powering to ensure its performance. If this condition is not met, there will be failures, errors and premature ageing. Power quality solutions range from small single-phase units to megawatt sagcorrection units. We Save Power has the expertise and products to solve any power quality phenomenon.

 

• Dynamic Voltage Restorer DVR


• Electronic Voltage Regulators EVR
• Sag Ride Through Devices SRT

• Static Var Generators SVG
• Active Harmonic Filters AHF

Power quality product selections (product/protection)

Product/protection DVR EVR SRT SVG AHF
Transient Activity + +      
Noise suppression + +      
Voltage Regulation + + +    
Voltage Sag Correction + + +    
Harmonic Protection + + + + +
Power Interruption Protection +        
Isolation   +      
Resonance Protection +     + +
Cos Phi Correction       + +
Power Factor Correction         +

Power quality product selections (products/characteristics)

Products/Characteristics DVR EVR SRT SVG AHF
Single-Phase   + +    
Three-Phase + + + + +
Indoor applications + + + +
Outdoor applications   +   +
IP Connection + + +

SVG is the new standard in reactive energy compensation.   This power electronic current source is the accurate and highly reliable solution for today’s networks characterised by significant increase in harmonics, voltage variations caused by intermittent renewable sources connected to the network and voltage level due to the smart grid development.   The DSP controlled IGBT topology enables a perfect compensation on each phase for both inductive and capacitive loads. It also correct phase unbalance where necessary. Immune to harmonics, resonance and voltage level, it offers a maintenance free solution reusable in any network configuration.

 

 Power made efficient

  • Full Reactive Power Compensation on each phase
  • From inductive to capacitive mode, user settable cos phi target
  • Load balancing between phases
  • 15 msec response time for full correction
  • Utra-compact, space economical design
  • Unlimited parallel operation
  • Enhanced reliability and protection modes

The SVG can be delivered in rackable or wall mounted modules which can be installed in parallel anywhere on the electrical line. As the system can be easily upgraded, it is not necessary to over-dimension the capacity to take into account future needs. Indoor large systems can be achieved by paralleling cabinets each delivering up to 500kVAR.   IP 54 solutions are also available when the solution must be installed in harsh environments.




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SVG is the new standard in var compensation. SVG is connected in parallel to the grid, similar to a variable var current source. SVGs fundamental configuration are 3-phase self commutated bridge circuits adopting full controlled power electronic semiconductor devices (IGBT). By adjusting the output voltage amplitude and phase angle or direct controlling AC side current, the SVG can absorb or generate var according to the loads reactive power or the grid voltage level.

Power made efficient

  • Full Reactive Power Compensation
  • From inductive to capacitive mode
  • Load balancing between phases
  • Utra-compact, space economical design
  • Unlimited parallel operation
  • Enhanced reliability and protection modes

The Static Var Generator achieves the fastest PFC speed. A real-time PFC according to the changes of reactive current in the system. The Static Var Generator issues offset current with equal size and opposite phase of reactive current. When compensation current reverses, reactive power in the system completely overlaps with the wave form of the reactive power issued bij the SVG.


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The SagFighterNXT is a single phase electronic sag corrector. A fully electronic design that operates without energy storage. The NXT is especially designed to locally protect sensitive electronics that are used for machine automation and control (switch power supplies of PLC’s, computers, testers), IT-racks and power electronics in motor drives. Appliances that are often set at a very sensitive level and may shut down when it registers a voltage drop of -15% or more. And consequently block an entire process.

Power made perfect

  • Sag protection compliant with SEMI-F47
  • Full sag correction within 10 milliseconds
  • Sag correction duration independent of load or power factor
  • Sag correction for a minimum of 100 seconds
  • Continuous protection without the need to recharge or reset
  • Non-continuous inverter operation that increases reliability
  • Battery-free design

Looking for the root cause of the risk of machinery failures and production downtime in processes with high loads, may give you the opportunity for decentral sag protection. Instead of large and expesive equipment for central protection at transformer level. The SagFighterNXT is the most economical solution to maximize facility uptime.


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The Active Harmonic Filters range from WSP is the broadest range of world class filters. From 5A per module in a 19” 1U format easily installed, among others, in data processing environment, to 150A per module widely used in the most demanding industries, the range is characterised by its outstanding correction of the harmonics from the 2nd to the 50th order in a volume smaller than many competitive products. Modular and scalable with the needs, this power electronic current source is the ultimate solution to offer reactive energy compensation, harmonics and phase unbalance correction in a single solution. Unique algorithms secure the absence of resonance with the circuit where it is installed.

Power made efficient

  • Mitigation from 2nd to 50th harmonic order
  • Reactive power compensation
  • Network balance
  • Unlimited parallel operation
  • Enhanced reliability and protection modes
  • Embedded wifi server for control on any terminal

Control at fingertip

The solution provides locally and remotely a comprehensive set of measurement data for analytical means:

  • Grid and load RMS voltages and currents.
  • Grid and load voltage and current distortions (THDu and THDi).
  • Frequency.
  • Graphical waveforms and harmonic spectrum per phase
  • Log book of alarms and events (change of settings).

The SVG can be delivered in rackable or wall mounted modules which can be installed in parallel anywhere on the electrical line. As the system can be easily upgraded, it is not necessary to over-dimension the capacity to take into account future needs. Indoor large systems can be achieved by paralleling cabinets each delivering up to 750A.   IP 54 solutions are also available when the solution must be installed in harsh environments.


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Electronic voltage optimizers, regulators and conditioners allow commercial enterprises of any size to optimize voltage to match individual facility needs, exactly. Voltage conditioners safely bridge voltage anomalies and ensure maximum uptime and motor life for valuable production equipment, while safely operating on grid voltage.

The automatic voltage conditioners provide tightly controlled voltage through both transient and longer-term low or high voltage events, while balancing 3-phase power.

Power made perfect

  • Fast voltage regulation corrects under/over voltage, sags, and swells (full correction within one cycle)
  • High fault-clearing capacity permits reliable operation of other protective devices
  • Built-in surge suppression for surges and spikes
  • Line isolation minimizes transients
  • Transformer shielding reduces line noise to deliver clean power
  • Independent phase regulation corrects voltage imbalance
  • Input circuit breaker protects against damaging over-current and short circuits
  • Automatic failsafe electronic bypass keeps the load powered

The WSP electronic voltage optimizers, regulators and conditioners combine the best qualities of typical mechanical and electronic voltage regulators while eliminating their weaknesses. Mechanical voltage regulators are valued for their high overload capacity and good voltage regulation, but these qualities are offset by their slow correction speed and the need for regular maintenance of moving parts. Similarly, electronic voltage regulators are known for their fast correction speed, but suffer from poor overload capacity.

The WSP electronic voltage regulators and conditioners provide high overload capacity for loads with large inrush-current requirements. At the same time, it provides consistent voltage regulation and fast correction without regular maintenance or moving parts.


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Industrial-grade means the electronic sag corrector is compatible with all non-regenerative load types and load power factors and provides a minimum 1,000% fault-clearing capability. Unlike computer-grade products or uninterruptible power supplies (UPS), the SagFighter is designed for frequent high-inrush current and low-power factor loads without the need to oversize the product.

Power made perfect

  • Sag protection compliant with SEMI-F47
  • Full sag correction within 2 milliseconds
  • Sag correction duration independent of load or power factor
  • Sag correction for a minimum of 100 seconds
  • No need for bypass operation for high inrush or overload currents
  • Continuous protection without the need to recharge or reset
  • Non-continuous inverter operation that increases reliability and provides 99% efficiency
  • Battery-free design

The WSP electronic sag corrector consists of a three-phase transformer with each of its secondary windings connected in series between the source (incoming line) and the load(s). Load current flows through the secondary windings of the transformer while the unit operates in a “monitoring” mode with the primary transformer windings shorted through SRC switches.


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