Introduction
This document provides comprehensive instructions for the installation, operation, and maintenance of S&C Electric Company's Communication and Control Units (CCU-SP and CCU-XP) used in outdoor distribution systems. It is designed for qualified personnel familiar with electrical equipment and safety protocols.
Safety Information
The document emphasizes the importance of understanding and adhering to safety-alert messages, which include 'DANGER', 'WARNING', 'CAUTION', and 'NOTICE', each indicating different levels of risk. It also provides guidelines for replacing instructions and labels, and the location of safety labels and tags.
Safety Precautions
Only qualified personnel should handle the equipment, using personal protective equipment and following grounding procedures. The document warns of high voltage dangers and stresses maintaining proper clearance from energized components.
Packing and Inspection
Details the packing process to prevent damage during shipment and outlines the inspection procedure upon receipt. It advises notifying the carrier and S&C Electric Company if damage is found.
Components
Describes the components of the CCU-SP and CCU-XP units, including battery packs, enclosures, and optional features like remote terminal units and communication devices. It explains the function of the battery charger and switch control unit.
Installation
Provides step-by-step instructions for installing the units, including drilling holes for mounting and considerations for control cable length. It specifies the required height for mounting to minimize vandalism risk.
Operation
Covers the operation of the units, including push button and remote operation, disconnect operation, and emergency manual operation for automated systems.
Maintenance
Outlines maintenance procedures such as periodic inspection of batteries and chargers, charging battery packs, and replacing battery packs.
Specifications
Lists specifications for self-powered and externally powered units, battery chargers, and battery packs.
Calibration
Includes instructions for calibrating voltage and current sensor outputs and additional calibration factors for self-powered units.
Installation and Mounting Instructions- Mounting the Communication and Control Unit: Mount at least 10 feet above ground using 5/8-inch diameter through-bolts, ensuring space for the cable riser if mounted vertically.
- Raising and Securing the Unit: Use a lifting sling to raise the unit, ensuring through-bolts engage with the enclosure mounting frame. Tighten bolts securely.
- Grounding: Connect a number 6AWG wire to the ground lug on the enclosure and to the switch ground wire(s).
Connecting the Control Cable- Control Cable Connection: Use the provided shielded control cable with multi-pin connectors to connect the switch to the control unit. Secure connections with connector clips and retain dust covers for future use.
- Security and Cable Management: Use a stainless-steel security belt to secure the connector at the control unit. Form a drip loop in the control cable and secure it to the utility pole.
Installing and Connecting Communication Devices- Mounting Provisions: Provisions are available for user-specified communication devices. Connect power to the device using specified terminals on the terminal block.
- Surge Protection: Use a surge suppressor to protect against lightning surges.
Connecting an Antenna and Land Line Interface- Antenna Connection: Attach the coaxial feedline to the surge suppressor if supplied by S&C. Otherwise, prepare a weather-tight entrance for the antenna connection.
- Land Line Interface: Prepare a weather-tight entrance for the land line connection.
Control Power and Remote Terminal Unit (RTU) Setup- Control Power Connection: For CCU-SP, use the S&C Voltage Sensor. For CCU-XP, connect user-supplied 120-volt ac control power.
- RTU Hardware Status Inputs: Pre-wired for S&C supplied units. Refer to wiring diagrams for others.
- Testing: Use a personal computer with protocol test software to test the RTU and communication unit.
Operation and Emergency Procedures- Placing into Operation: Energize the switch and confirm the battery charger settings. Ensure proper grounding to avoid electrical shock.
- Push Button and Remote Operation: Use local/remote switches for operation. Ensure proper indicator status for open/closed positions.
- Emergency Manual Operation: Use a hookstick to manually operate the switch in case of power loss.
Operation and Safety
The document emphasizes the importance of safety when operating the Scada-Mate Switch. It warns that the interrupters and terminal pads may be energized in any position, and proper high-voltage test equipment should be used to test for voltage before any inspection or servicing. Suitable grounding equipment must be installed to prevent serious injury or death.
Maintenance
Regular maintenance is crucial for ensuring the reliable performance of the battery system. An annual inspection is recommended, focusing on the battery's physical appearance and charging voltage. Key equipment required includes a DC voltmeter, battery ID labels, and a thermometer. Proper record-keeping is essential for tracking battery performance and identifying trends.
Battery Charging and Replacement
The document provides detailed procedures for charging and replacing battery packs for both CCU-SP and CCU-XP units. It includes steps for grounding the enclosure, connecting to an isolated power source, and ensuring proper battery connections. Caution is advised to prevent equipment damage from improper reconnections.
Specifications
The document lists specifications for the Self-Powered Communication and Control Unit (CCU-SP) and the Externally Powered Communication and Control Unit (CCU-XP). It includes details on the S&C Battery Charger, such as operating temperature range, input voltage, and charging outputs. Specifications for battery packs, including nominal voltage, rated capacity, and life expectancy, are also provided.
Calibration
Instructions for calibrating voltage and current sensor outputs are provided. The document explains how to use sensor data for RTUs with different voltage sensing inputs and provides a procedure for adjusting voltage-sensor magnitude ratios.
Output Terminals on Burden Assembly
Details the terminal connections for various switch poles, identifying them based on their position when facing the mechanism side or in a tiered-outboard configuration.
Calibration
Current-sensor magnitude ratios are used for calibrating current-sensing inputs to the RTU. Voltage-sensor and current-sensor phase-angle shifts are generally not required for transducer-equipped RTUs. Ensure the voltage-sensor output selector switch is set to "69 Vac" after calibration. Keep the yellow card with calibration data in a water-resistant envelope inside the control unit enclosure. Additional information is available in S&C Data Sheet 768-93.
Alternate Location of Data
If the yellow card is unavailable, magnitude-ratio and phase-angle shift measurements are stamped on the sensor’s terminal pad. Voltage-sensor measurements are on the left side, and current-sensor measurements are on the right side of the terminal pad.
Additional Calibration Factors for Self-Powered Units
The battery charger affects voltage sensor ratios, and further refinement may be needed for accuracy. Corrected sensor ratios can be used by the RTU to adjust sensor outputs. Magnitude-ratio and phase-angle shift measurements of the battery charger are labeled on the charger cover.
Voltage-Sensor Ratio Corrections—Battery Charger Phase
Provides the formula for calculating magnitude ratios and lists Kv values for different switch types.