Key Features
Advanced Transistor Inverter Technology: The WR-5080 and WR-5081 inverters utilize transistor inverters with PWM (Pulse Width Modulation) technology, ensuring efficient and precise power conversion. The incorporation of an isolation transformer in the inverter output enhances the quality and safety of the power delivered to the load.
Electronic and Manual Bypass: Both electronic and hand-operated bypass options are integrated into the system, allowing seamless transitions between inverter and bypass modes during maintenance or faults, ensuring uninterrupted power delivery.
User-Friendly Interface: A color TFT touchscreen display provides an intuitive interface for easy monitoring and control of the inverter’s operation. The clear display simplifies the management of system parameters and enhances user experience.
High Power Availability: The WR-5080 supports single-phase systems up to 200 kVA, while the WR-5081 supports three-phase systems up to 500 kVA. This scalability ensures that the inverters can meet a wide range of power requirements.
Parallel Operation Capability: Up to eight inverter units can be connected in parallel, allowing the system to scale up to a total of 1500 kVA. This feature provides flexibility in designing larger power systems while maintaining high availability.
Two-Stage Fan Monitoring: The power units are equipped with two-stage fan monitoring (warning and shutdown) to ensure the longevity and reliability of the inverters by preventing overheating.
Customization Options
Input Voltage Flexibility: Available input voltage options include 24, 48, 60, 110, 220, and 372 V DC, with the possibility of configurations up to 1000 V for specific applications.
Isolating Transformer Compliance: The inverters can be equipped with isolating transformers that meet VDE 0558-507 or ÖVE/ÖNORM E 8007 standards for bypass cabinets.
Parallel Operation Support: Parallel running devices can be integrated, enabling the creation of highly scalable and redundant power systems.
Interface Variety: A wide range of communication interfaces are available, including SNMP, Modbus, and other industry-standard protocols, to facilitate easy integration into existing infrastructure.
Enhanced Cabinet Configurations: Cabinets can be customized with options such as interior lighting, heating, sealed cable entry, and protection classes higher than IP20, ensuring that the inverters can operate in a variety of challenging environments.
Technical Specifications
Rated Power:
WR-5080: 5-200 kVA (1~)
WR-5081: 5-500 kVA (3~)
Execution: Transistor, PWM, galvanically isolated
DC Input Voltage: 24, 48, 60, 110, 120, 220, up to 1000 V possible
AC Input Voltage (Bypass):
1/N/PE AC 230 V
3/N/PE AC 400/230 V
AC Input Voltage Tolerance: ± 10%
Frequency: 50 or 60 Hz ± 5%
Nominal AC Output (Inverter Output):
Voltage: 1/N/PE AC 230 V or 3/N/PE AC 400/230 V
Frequency: 50Hz ± 5%
Overload Capability:
10 x I_N for 10 ms
1.50 x I_N for 60 seconds
1.25 x I_N for 10 minutes
1.10 x I_N for 20 minutes
Short Circuit Behavior:
Short-circuit proof, with a short-circuit current of 2x I_N (1-phase) and 2-4x I_N (3-phase)
Inverter stop after 5 seconds
Permissible Power Factor: 0.0 inductive to 0.0 capacitive (Power reduction when deviating from cos φ 0.8 ind.)
Permissible Crest Factor: ≤ 2.3 at rated power
Output Voltage Adjustment Range: ± 5% (with a restriction of nominal data at +5%)
Settling Time: < 4 ms (instantaneous value control)
Waveform: Sinusoidal with a distortion factor of ≤ 3% under linear load
Synchronization Range: 50Hz ± 3%
Frequency Change Rate: 1Hz/s
Environmental and Safety Standards
Protection Class (EN 61140): I
Protective Conductor Current: < 5% I_N, typically 50 mA
Protection Class (EN 60529): IP 20 (floor IP00)
Permissible Installation Height: 1,000 m above sea level, with a minimum air pressure of 870 hPa
Painting: RAL 7035, solid textured paint
Cooling Type: Natural cooling (“ON”) or forced air cooling (“AF”)
Relay Interface: 8 signals with 2 potential-free changeover contacts per signal, covering:
Inverter operation
Network operation
Battery discharge
Advance warning of deep discharge
Network failure
System malfunction
2x Reserve
Environmental Conditions:
Storage: EN 60721-3-1, 1K21 / 1M11, +5 to +40 °C
Transport: EN 60721-3-2, 2K12 / 2M4, -45 to +70 °C
Operation: EN 60721-3-3, 3K22 / 3M11, +5 to +40 °C, 5-85% relative humidity, no condensation, Pollution level 2
Compliance and Standards
EMC Directive: 2014/30/EU
RoHS Directive: 2011/65/EU
EMC Standards: EN61439-1, EN61439-2, EN 62040-2
These static inverters provide a reliable and versatile solution for maintaining power continuity across various critical applications. Their modularity, scalability, and customization options make them adaptable to a wide range of environments and power requirements.