SEL-787-2, -3, -4 Data Sheet Schweitzer Engineering Laboratories, Inc.
14
➤
Use the Event Report Analysis tool for easy retrieval
and visualization of ac waveforms and digital inputs
and outputs the relay processes.
➤ Use the graphical current phasor display in the HMI
to visualize differential current relationships.
➤ Use bay control to design new bay screens and edit
existing bay screens by launching
ACSELERATOR
Bay Screen Builder SEL-5036 Software for
SEL-787 relays with the touchscreen display.
ACSELERATOR Bay Screen Builder
SEL-5036 Software
The SEL-787 with the touchscreen display option pro-
vides you with the ability to design bay configuration
screens to meet your system needs. You can display the
bay configuration as a single-line diagram (SLD) on the
touchscreen. You can use ANSI and IEC symbols, along
with analog and digital labels, for the SLD to indicate the
status of the breaker and disconnects, bus voltages, and
power flow through the breaker. In addition to SLDs, you
can design the screens to show the status of various relay
elements via Relay Word bits or to show analog quanti-
ties for commissioning or day-to-day operations. You
can design these screens with the help of Bay Screen
Builder in conjunction with QuickSet. Bay Screen
Builder provides an intuitive and powerful interface to
design bay screens to meet your application needs.
Figure 14 Bay Screen Builder
Metering and Monitoring
The SEL-787 provides extensive metering capabilities.
See Specifications on page 34 for metering and power
measurement accuracies. As shown in Table 5, metered
quantities include phase voltages and currents; neutral
current; sequence voltages and currents; harmonics,
power, frequency, and energy; and maximum/minimum
logging of selected quantities. The relay reports all
metered quantities in primary quantities (current in
A primary and voltage in V primary).
e
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