Capacitor Bank Protection & Control System
The C70 is an integrated protection, control, and monitoring device for shunt capacitor banks based on the well established and proven UR relay platform of GE Multilin. The C70 provides both the bank and system protection schemes for shunt capacitor bank protection. The current and voltage-based protection functions provide sensitive protection for grounded, ungrounded single, and parallel capacitor banks and banks with taps.
New and Enhanced Communication Capabilities
Cyber Security - CyberSentry UR (FW v7.xx)
CyberSentryTM enables UR devices to deliver full cyber security features that help customers to comply with cyber security requirements (NERC CIP, IEEE 1686, IEC 62443, etc):
Fully Compatible with IEC 61850-9-2LE or IEC61869 process bus schemes:
Extended Oscillography Records (FW v7.xx)
New and Enhanced Protection and Control Functionality
Protection & Control
The C70 provides sensitive protection functions designed specifically to protect shunt capacitor banks effectively. The C70 provides current-based protection functions, which include phase, ground, and neutral instantaneous and time overcurrent elements for standard overcurrent protection of the bank. Two elements per configured CT bank are available. The C70 also provides breaker failure protection and standard voltage-based protection functions. Apart from the standard current and voltage-based functions, the C70 comes with protection functions specifically designed to provide sensitive protection for capacitor banks in a single box.
Monitoring & Diagnostic
The C70 includes high accuracy metering and recording for all AC signals. Voltage, current, and power metering are built into the relay as a standard feature. Current and voltage parameters are available as total RMS magnitude, and as fundamental frequency magnitude and angle.
The C70 incorporates advanced automation features including powerful FlexLogic™ programmable logic, communication, and SCADA capabilities that far surpass what is found in the average capacitor bank relay. The C70 integrates seamlessly with other UR relays for complete system protection.
The C70 provides advanced communications technologies for remote data and engineering access, making it easy and flexible to use and integrate into new and existing infrastructures. Direct support for fiber optic Ethernet provides high-bandwidth communications allowing for low-latency controls and high-speed file transfers of relay fault and event record information. The available three independent and redundant Ethernet options provide the means to create fault tolerant communication architectures in an easy, cost-effective manner.
The C70 supports the most popular industry standard protocols enabling easy, direct integration into DCS and SCADA systems.
Interoperability with Enbedded IEC 61850
Use the C70 with integrated IEC 61850 to lower costs associated with generator protection, control and automation. GE’s leadership in
IEC 61850 comes from thousands of installed devices and follows on years of development experience with UCA 2.0.
The C70’s IEC 61850 Process Bus module is designed to interface with the Multilin HardFiber System, allowing bi-directional IEC 61850 fiber optic communications. The HardFiber System is designed to integrate seamlessly with existing Universal Relay applications, including protection functions, FlexLogic, metering and communications. Learn More
Cyber Security - CyberSentry™ UR (FW v7.4xx)
CyberSentry enables UR devices to deliver full cyber security features that help customers to comply with NERC CIP and NITIR 7628 cyber security requirements through supporting the following core features:
Secure FW upgrade
UR FW files v7.9 and up now include a hash code that allows for authentication prior to being used for upgrading UR devices.
Supporting up to 20 alpha- numeric or special characters, UR passwords exceed NERC CIP requirements for password complexity. Individual passwords per role are available.
AAA Server Support (Radius)
Enables integration with centrally managed authentication and accounting of all user activities and uses modern industry best practices and standards that meet and exceed NERC CIP requirements for authentication and password management.
Role Based Access Control (RBAC)
Efficiently administrate users and roles within UR devices. The new and advanced access functions allow users to configure up to five roles for up to eight configurable users with independent passwords. The standard “Remote Authentication Dial In User Service” (Radius) is used for authentication.
Event Recorder (Syslog for SEM)
Capture all cyber security related events within a SOE element (login, logout, invalid password attempts, remote/local access, user in session, settings change, FW update, etc), and then serve and classify data by security level using standard Syslog data format. This enables UR devices integration with established SEM (Security Event Management) systems.
The EnerVista™ suite is an industry-leading set of software programs that simplifies every aspect of using the C70 relay. The EnerVista™ suite provides all the tools to monitor the status of the protected asset, maintain the relay, and integrate information measured by the C70 into DCS or SCADA monitoring systems. Convenient COMTRADE and Sequence of Events viewers are an integral part of the UR setup software included with every UR relay, to carry out postmortem event analysis and ensure proper protection system operation. Learn More