Siemens SG8158-00 manual Wisdom Software, Optional Configurations

Introduction 1

1.3.2Optional Configurations

The ISGS relay is a dynamic, feature-rich device that can be used in numerous industrial and utility applications. It allows the addition of options or configuration changes at any time without discarding the basic hardware.

There are four optional configurations that can be added to the ISGS relay base unit.

Metering

Adding metering to the ISGS relay provides the relay with three inputs for the connection of VTs. Each input can be set from 100 V to 120 V. These inputs extend metering capabili- ties as follows:

•Rms and average rms voltages

•Active and apparent power

•Kilowatt demand and kilowatt demand hours

•Power factor

•Frequency

The installation of the voltage input card now also allows the setting of these protective functions:

•High-Set Instantaneous Phase Overcurrent (50HS)

•High-Set Instantaneous Neutral or Ground Overcurrent (50HSN)

The metering option is also a prerequisite for the next two options: additional protective functions and remote commu- nications.

Additional Protective Functions

For an ISGS relay with the metering option installed, the fol- lowing additional protective functions offer a powerful exten- sion of its protection capabilities:

•Under/Overvoltage (27/59)

•Phase Sequence Voltage (47)

•Negative Sequence Voltage (47N)

•Directional Time Overcurrent (67/67N)

•Over/Underfrequency (81U/O)

Communications

Adding communications to the ISGS relay provides the relay with an RS-485 port. Using the SEAbus™ communications protocol, this port allows remote communications and con- trol via the ACCESS™ electrical distribution and communica- tion system (ACCESS system).

Communications allows configuration, measurement, and protection functions to be performed or reviewed easily from a remote location using Wisdom software.

1.4 Wisdom Software

While it is possible to completely set up and configure the ISGS relay using the front panel keyboard and display, the free Wisdom software package provided with the relay reduces the complexity of configuring the relay, reading metered values, and retrieving stored data. For more infor- mation on Wisdom software, refer to Chapter 8.

Siemens Energy & Automation, Inc. 3