Installation Manual
2.1.1Shared System Major Internal Components
Input Filter | An input harmonic current filter is standard. |
Input Transformers | The |
| The transformers provide battery isolation or voltage |
| required for the particular installation. |
Rectifier/Battery Charger | The rectifier/battery charger converts the AC input voltage from the utility source into |
| a DC voltage, supplying the inverter and regulating the charge of the battery system. |
| A capacitor bank filters the DC voltage. |
Inverter | The inverter chops the DC voltage supplied from either the rectifier/battery charger |
| or the battery system into a |
| achieve a |
| distortion of less than 2% under |
Static Switch | An output static switch is provided to connect the ups output power to the SSC. |
Inverter Transformer | During normal operation, the inverter transformer provides complete electrical |
| isolation between the UPS output to the attached load. |
2.1.2Shared System Options
This section describes options available for the EPS 7000 series 800 UPS. Some configurations do not support some options. Most options must be specified at the time of equipment order; some options can be installed in the field. Contact your MGE dealer for complete information.
Maintenance bypass | For the UPS modules, maintenance bypass is provided by the SSC, allowing any or |
| all attached UPS modules to be taken |
| load from its bypass source. As an option, the SSC can be equipped with its own |
| maintenance bypass, allowing the SSC as well as any/all attached UPS modules to |
| be serviced while the load is supported by the maintenance bypass AC input source. |
Active | A communications port is available that allows the UPS module or the SSC to be |
| monitored from a remote terminal or computer. For detailed information on the |
| communication features, contact your MGE dealer. |
Main Battery Disconnect | The battery disconnect provides isolation of the battery circuit from the UPS and |
| also provides overload protection for the battery circuit. It is housed in a separate |
| enclosure and can be floor mounted against a wall. |
Battery System | The battery system stores energy for use by the inverter. The stored energy is |
| utilized in the event that the AC input power from the utility source fails, or falls |
| outside of acceptable tolerance. |
The battery system may be a
Description | page 2 — 9 |