NOVA Inverter 750VA Inverter (48Vdc + 230Vac) / 230Vac Features and Benefits Dual input sources (AC & DC) Compact and lightweight solution DC Power for Business-Critical Continuity ™ Description Inverter systems are normally used for AC backup requirements in a telecom / datacom site or anywhere a highly reliable AC power back up source is needed. NOVA is a compact and scalable inverter providing a pure sine wave AC supply. In conjunction with a DC Power system, it provides an excellent AC backup solution. The TSI (Twin Sine Inverter) uses the latest inverter technology, providing superior energy efficiency in a compact size. High efficiency Full scalability and expandability Hot swappable Pure sine wave on AC output Transfer time reduced to naught No single point of failure Total modularity as no external static-switch required The inverter is designed to work from 230Vac and 48Vdc sources through AC/AC and DC/AC conversions. Unlike traditional inverters, the TSI features an AC to AC conversion that assures double filtering function. This results in an efficiency of 94% without any compromise in quality and stability of the output wave form! This off line operation mode is called “Enhanced Power Conversion” (EPC). The EPC mode, which is the filtering of current and voltage, is similar to a rectifier combined with an inverter (online mode) but gives a significantly better efficiency. Compared to a UPS operating in offline mode (no current conversions) the efficiency is the same, but the rejection of grid disturbances is much higher. The online mode is usually only used during a mains outage when inverters are fed by batteries. Therefore, the TSI inverters will almost constantly provide an efficiency of 94%. It will always be the most reliable AC backup solution! The TSI inverters also have an in-built static switch function. Because no external static switch is needed, the inverter system becomes smaller, more reliable and easily expandable. As many as 32 inverter modules can be used in parallel. NOVA Inverter 750VA Inverter Power Flow Diagram Standard Feature – Offline Mode AC in ➡ Backup Feature – Online Mode ➡ AC AC in AC out AC DC in ➡ AC AC out DC in DC ➡ Output power comes from AC in Inverter is fed from AC commercial grid AC DC ➡ ➡ Output power comes from DC in Inverter is fed from the DC Power system Technical Specifications, TSI NOVA General EMC (immunity) EMC (emission) Safety Cooling Isolation MTBF Efficiency (Typical) EN 61000-4 EN 55022 (Class B) IEC 60950 Forced Doubled 240,000 hrs Enhanced power conversion 94% On line 89% DC/AC 4300Vdc Compliant 3 disconnection levels on AC out and DC in power ports 4 disconnection levels on AC in port Dielectric Strength True Redundant Systems RoHS Connection Compliant I/O terminal block protected against inversion of polarity Self adaptive to wide operating conditions and comprehensive table of troubleshooting codes Trouble-Free Operation Nominal Output Power Output Power (resistive load) Short Time Overload Capacity Permanent Overload Capacity Admissible Load Power Factor Internal Temperature Mgmt. 750 VA 525 W 135% 15 second 110% Full (power rating from 0 inductive to 0 capacitive) Switch off DC Input Specifications 48 V 40 - 60 V 14A (56A per shelf) 21A (84A per shelf for 5 seconds) 63A circuit breaker per shelf 2mV User selectable Short Circuit Clear Up Capacity** 9 x In for 20msec * Operation within lower voltage networks leads to derating of power. ** Available while Mains is available at AC input port, with magnitude control and management. 230 V 185 - 265 V 12A per shelf Adjustable >99% 50 - 60 Hz 47 - 53 Hz, 57 - 63 Hz Emerson Network Power. The global leader in enabling Business-Critical Continuity™. www.emersonnetworkpower.com www.emersonnetworkpower.com/energysystems www.DCpowerefficiency.com Maximum Voltage Interruption Total Transient Voltage Duration (max) 0s 0s Environment Altitude Above Sea Ambient Temperature Storage Temperature Relative Humidity <1500m 750VA -20° to 40°C, 675VA -40° to 50°C, derating up to 65°C -40° to 70°C 95% , non-condensing Signaling & Supervision Display Alarms Output Supervision Synoptic LED Dry contacts on shelf Use optional devices Weight & Dimensions Width x Depth x 1U Weight Material (casing) AC Input Specifications Nominal Voltage (AC) Voltage Range (AC) Current (at 185Vac) Conformity Range Power Factor Frequency Range (selectable) Synchronization Range 230 V 200 - 240 V 2% 50 - 60 Hz 0.03 % <1.5 % 0.4 ms 20 s 3.25A (protected against reverse current) 3.5 Transfer Performance AC Output Power Nominal Voltage (DC) Voltage Range (DC) Current (at 40Vdc) Maximum Input Current Recommended Protection Voltage Ripple Input Voltage Boundaries AC Output Specifications Nominal Voltage (AC)* Voltage Range (AC) (adjustable) Voltage Accuracy Frequency Frequency Accuracy Total Harmonic Distortion (resistive load) Load Impact Recovery Time Turn On Delay Nominal Current Crest Factor at Nominal Power (with short circuit mgmt. and protection) 106 x 325 mm x 1U 2.1 Kg Coated steel • AC Power • Connectivity • Infrastructure Management & Monitoring Embedded Power • Precision Cooling • Racks & Integrated Cabinets • DC Power • Outside Plant • Services • Embedded Computing • Power Switching & Controls • Surge Protection Business-Critical Continuity, Emerson Network Power and the Emerson Network Power logo are trademarks and service marks of Emerson Electric Co. ©2010 Emerson Electric Co. Emerson Network Power reserves the right to alter without notice the specification, design or conditions of supply of any product or service. EN/LZT 145 300 RA