GE b30 Instruction Manual page 16

PRODUCT DESCRIPTION
the Precision Time Protocol (PTP). This precise time stamping allows the sequence of events to be determined throughout
the system. Events can also be programmed (via FlexLogic
set to record the measured parameters before and after the event for viewing on a computer. These tools significantly
reduce troubleshooting time and simplify report generation in the event of a system fault.
Several options are available for communication. A faceplate RS232 port can be used to connect to a computer to
program settings and monitor actual values. The rear RS485 port allows independent access by operating and engineering
staff. It can be connected to system computers with baud rates up to 115.2 kbps. All serial ports use the Modbus RTU
protocol. The IEC 60870-5-103 protocol is supported on the RS485 interface. Also only one of the DNP, IEC 60870-5-103,
2
and IEC 60870-5-104 protocols can be enabled at any time on the relay. When the IEC 60870-5-103 protocol is chosen, the
RS485 port has a fixed even parity and the baud rate can be either 9.6 kbps or 19.2 kbps. The 100Base-FX or 100Base-TX
Ethernet interface provides fast, reliable communications in noisy environments. The Ethernet port supports IEC 61850,
Modbus/TCP, TFTP, and PTP (according to IEEE Std. 1588-2008 or IEC 61588), and it allows access to the relay via any
standard web browser (B30 web pages). The IEC 60870-5-104 protocol is supported on the Ethernet port. The Ethernet port
also supports the Parallel Redundancy Protocol (PRP) of IEC 62439-3 (clause 4, 2012) when purchased as an option.
Secure Routable GOOSE (R-GOOSE) is supported with software options.
Settings and actual values can be accessed from the front panel or EnerVista software.
The B30 uses flash memory technology that allows field upgrading as new features are added. Firmware and software are
upgradable.
The following single-line diagram illustrates the relay functionality using American National Standards Institute (ANSI)
device numbers.
Table 2-1: ANSI device numbers and functions supported
Device Function
number
27P Phase undervoltage
49 Thermal overload protection
50BF Breaker failure
50DD Disturbance detector
50G Ground instantaneous overcurrent
50N Neutral instantaneous overcurrent
50P Phase instantaneous overcurrent
50/74 CT trouble
50G Ground instantaneous overcurrent
2-2
equations) to trigger oscillography data capture that can be
™
Device Function
number
50/87 Unrestrained bus differential
51G Ground time overcurrent
51N Neutral time overcurrent
51P Phase time overcurrent
59N Neutral overvoltage
59P Phase overvoltage
59X Auxiliary overvoltage
67P Phase directional overcurrent
87B Restrained bus differential
B30 BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
CHAPTER 2: PRODUCT DESCRIPTION