Enclosure is mounted on switchgear
(pad-mounted style shown here—a
stainless steel enclosure is provided for
vault-mounted style Vista SD)
Adapter cable connects overcurrent
control to a personal computer
Personal computer is used to input
settings and interrogate event recorder
General
The following instructions are for field and shop programming of the S&C Overcurrent
Control. This microprocessorbased control is designed for use on S&C Vista SD Under
ground Distribution Switchgear to provide fault detection and operation of the resetta ble
vacuum fault interrupters. Each overcurrent control operates up to two threepole fault
interrupters. The control is housed in an enclosure mounted to the operating mechanism
enclosure. For vaultmounted style Vista SD units, the overcurrent control enclosure is
fully submersible. The elec tronics module is removable for programming in the shop.
Programming
A personal computer furnished by the user is to be used to input settings, review
set tings, and interrogate the event recorder. The software for programming the overcur
rent control is contained within the control. Two data ports are provided—one on
the enclosure for programming in the field and another on the electronics module for
pro gramming in the shop. Adapter cables are available from S&C (see Instruction Sheet
695515A) to connect the computer to the control.
An external power source is required for programming and interrogating the control.
A source of dc power is available from the mouse or USB port on the personal computer.
The adapter cables contain connectors for data and power to use the power available
from the computer.
Description
S&C Instruction Sheet 695-515
5
Summary of Contents for Vista SD
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