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< Return to Main Product Page ED Series™ 1.5 kVA to 2.4kVA (400 Hz Input)
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Advanced Features
Unique Three-Phase to Single-Phase Converters
The ED Series Frequency and Phase Converter offers a unique set of capabilities in a compact and lightweight package.
The Ideal Solution to Phase Imbalance Problems
Phase imbalance occurs when single-phase equipment with various current ratings are connected to the individual phases of a three-phase source. Other three-phase equipment connected to the same power system may experience problems as a result. Phase imbalance can result in high or excessive third order harmonics, nuisance tripping of circuit breakers and destructive over-heating.
The ED Series solves this problem by operating from 400Hz, three-phase power, and converting it to a DC voltage. The DC voltage is then filtered and regulated and directed into the Pulse Width Modulated (PWM) inverter stage, where a new single-phase sinewave output is created.
Using this topology, current is drawn equally from all three phases, while the ED supplies clean, regulated single-phase power to the critical load. The ED’s low output impedance enables it to start up and power difficult loads with high instantaneous current demands.
The Ideal Solution to Difficult Power Problems
The patented ED Series double conversion design protects against the following power quality problems:
The Ideal Frequency Converter Solution
The ED’s output frequency can be factory configured to 50, 60 or 400Hz. The frequency can be independent of the incoming utility frequency. Due to this unique flexibility, the ED may be used in a wide range of domestic, international and military applications, where frequency conversion is required.
The Ideal On-line UPS Solution
Optional external battery banks can be connected to the ED Series Rackmount Frequency and Phase Converter, adding On-line UPS functionality. An internal 400ma battery charger and external battery connector are standard on every unit, allowing it to be upgraded in the field.
Two battery options are available. The standard model ships with standard temperature range, maintenance-free, VRLA batteries. Optional extended life, wide temperature range (-65ºC-+80ºC) batteries are also available.
Ideal for applications such as:
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