GridSmart

The GridSmart is a special Pole Mounted RTU which provides SCADA support for remote (nonsubstation) devices. It is often used with remote breakers which are fed from a distribution metering point or tap. The GridSmart is particularly cost effective for automating older devices such as Cooper Type W, 3A, and 4C recloser controls. Battery backup allows continued SCADA support during power outages. Communications is implemented with short-haul radio modems or fiber optics. Valquest provides a data concentrator RTU (VQ-9) for efficient channeling of data to the SCADA Master Station.

 

Input / Output Connections

Qty	I/O	Specification
3	Voltage Inputs	120 VAC
3	Current Inputs	0-10 Volt, 0-1 Amp LPCS, or 0-5 Amp CT
4-8	Digital Inputs	Opto-isolated, external, or self-wetted
0-4	Digital Outputs	Control Pairs

SCADA Functions

Analog Readings	Digital	Control
Three phase current & neutral measurement Phase angle measurement on all phases Fault current and duration measurement Voltage measurement	Breaker Status Non-Reclose Status Ground-Fault Block Status Local / Remote Status	Trip / Close Non-Reclose Ground Fault Block

Communications Protocols and Interfaces

Port 1	Port 2	Port 3
Supports DNP 3.0 Protocol through the following connections: RS-232 Fiber Optic Ethernet - TCP/IP	Maintenance and Programming: RS-232	Programming and Data Storage: DM Memory Card Slot

Man - Machine Interface:

• Front panel display and controls (Operates with simple rotational and push-button control).
• The LCD Display provides an easy to read visual interface for setup and status checking.

Technical Specifications