GE Fanuc Multilin UR9EH

UR9EH UR Seies Introduction

There are many UR Multilin series universal relays with diverse functions and applications. The two Generation UR relays are the G60 and the G30. The G60 is designed for medium or large generators (primary and backup protection) and the G30 is designed for medium and small generators to provide comprehensive monitoring features in addition to protection of the generators. Additionally, the bulk of the UR relays fall into the transmission or distribution category. The L30 for example provides line current differential protection for sub-transmission lines whereas the D30 provides backup distance protection for transmission systems. There are more than eighteen UR relays in addition to the ones briefly mentioned here. Each of these universal relays is equipped with a CPU whether the universal relay is a vertical (3/4 size) or a horizontal mount relay. The CPUs can be identified by a RH-9 part introduction, followed by a letter that designates the specific characteristics of that CPU. The CPUs of the 9A, 9C, or 9D category will be of the old module types and the other letters (9E and up to 9S) will indicate a new CPU module contained in the universal relay.

UR SCAN OPERATION

The UR-series devices operate in a cyclic scan fashion. The device reads the inputs into an input status table, solves the logic program (FlexLogicô equation), and then sets each output to the appropriate state in an output status table. Any resulting task execution is priority interrupt-driven.

The enerVista UR Setup software to properly operate on a PC require

1. Pentium class or higher processor (Pentium II 300 MHz or higher recommended)

2. Windows 95, 98, 98SE, ME, NT 4.0 (Service Pack 4 or higher), 2000, XP

3. Internet Explorer 4.0 or higher

4. 128 MB of RAM (256 MB recommended)

5. 200 MB of available space on system drive and 200 MB of available space on installation drive

6. Video capable of displaying 800 x 600 or higher in high-color mode (16-bit color)

7. RS232 and/or Ethernet port for communications to the relay

Compliant with the T35 and the enerVista UR Setup software.

1. US Robotics external 56K FaxModem 5686

2. US Robotics external Sportster 56K X2

3. PCTEL 2304WT V.92 MDC internal modem

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