Smart-Gear™ power distribution solution (PDS)
As of October 1, 2008, our U.S. business is called Siemens Energy, Inc.
Smart-Gear PDS description and features
What would it be like to have standard switchgear programmable for your unique requirements and automatically monitors its health for your peace of mind?
Siemens has the solution now! Smart-Gear power distribution solution(PDS) is programmable, self-monitoring switchgear that is easier to design, specify, manufacture, commission and operate than traditional custom engineered switchgear.
Siemens Smart-Gear PDS is available exclusively with Siemens types GM-SG and GM-SG-AR medium-voltage metal-clad switchgear and select SIPROTEC protective relays.
Standard features
Remaining circuit breaker operating cycles before maintenance is required
Circuit breaker trip and close coil monitoring
Vacuum interrupter wear indication
Electronic circuit breaker operations counter
Circuit breaker spring charge status indicated
Integrated circuit breaker control
Circuit breaker racking position indication
Integrated power monitoring 1% accuracy
Programmable circuit breaker interlocking (via 61850 network)
Auto-transfer schemes, main-tie-main or main-main
Cooling fan control (4000 A or transformer applications)
Voltage transformer (VT) or current transformer (CT) monitoring
Single phasing protection with load shedding logic for mains
Bus protection (ANSI #50B)
Arc Sentry fast trip mode (ANSI#50)
Space heater operation (when required)
Optional modules for specialized applications
Generator paralleling controls
Siemens integrated control, automation and monitoring station (SICAM) unit / Power automation system (PAS)
Human machine interface (HMI) visualization system scaleable from low- to high-functionality
Transformer asset management and fan control
Remote circuit breaker controller and remote electric racking
Partial discharge monitoring
Arcing fault detection with optical sensors
Smart-Gear PDS pre-configured switchgear
Siemens is introducing pre-configured switchgear with mains, ties and branch feeders supporting transformer, motor and generator loads. The switchgear sections can be mixed and matched for any application and controls are interconnected on an Ethernet communication network supporting IEC 61850, delivering greater flexibility to address your unique system requirements.
Smart-Gear PDS standard system architecture
The standard system architecture for Smart-Gear PDS includes a protective relay with integrated control / indication functions, a fiber-optic backbone with peer-to-peer communications and a circuit breaker.
Advanced communication capability
The key to Smart-Gear is the SIPROTEC protective relays, now employing advanced communication capability via Ethernet based IEC 61850 communication and network architecture technology. This technology makes Smart-Gear PDS future-oriented and delivers a foundation for building your power SCADA network. The technology allows users to combine power monitoring and circuit protection, which are standard protective relay features, with internal logic and secure communications to deliver new levels of system protection, operational capabilities, communication security and interlocking schemes for updated switchgear applications. These combined capabilities allow users of Smart-Gear PDS to create their own configurations and change them later using Siemens DIGSI software and a communication bus for control, without compromise to operational, protection, communications security or safety related interests.
Switchgear monitoring
Switchgear monitoring includes drawout circuit breaker position indication, which is displayed on the local SIPROTEC HMI screen on the low-voltage compartment door. This results in greater operational safety as it allows the operator to look at the HMI screen and not inside the circuit breaker compartment at a mechanical indicator. Other functions monitored include power metering, VTs, CTs and cubicle space heater control (when required). Comprehensive monitoring means the user is alerted to potential problems, and has greater information to assist in operating the switchgear, with confidence and peace of mind.
Circuit breaker monitoring
Extensive circuit breaker monitoring is achieved by connecting multiple sensors and inputs to the Siemens SIPROTEC relay mounted in the low-voltage compartment. Circuit breaker trip and close coils, vacuum interrupter wear, number of operations, spring charge status and remaining operations before maintenance is required, are monitored or calculated and displayed on the local SIPROTEC relay HMI. This greatly reduces the need for the user to open the compartment, withdraw the circuit breaker and inspect it.
Smart-Gear PDS diagram
Footnotes:
1 GOOSE: Generic object oriented substation event