stucke GROUP SYMAP Digital Protection Relays

SYMAP® is easy to program and operate. A large graphic LCD with optional LED indicators conveys important data such as position of all connected breakers, parameter settings, and event histories at a glance. Graphics and measurements are displayed side-by-side on the LCD, so that the user does not have to switch between pages. The entire programming of SYMAP® can be done with the keys on its front panel or by using a notebook. Using a notebook offers the advantage that stored parameters can easily be applied to other SYMAP® units. Either way, easy programming is guaranteed and on-site visits by the manufacturer’s engineers during commissioning is not required. SYMAP® provides four hotkeys placed underneath the LCD to access four main groups of values, namely »Meters«, »Alarm«, »Process« and »Breaker Control«. The user can press the hotkeys to scroll through pages of information. The hotkey »Meters« provides detailed information on electric measurement values, counters for active and reactive power and working hours. The hotkey »Alarm« displays all active alarms, event log and blockings. »Process« shows all process data such as the synchronization display, motor thermal indication and a counter of breaker operations. Under »Breaker Control«, up to five breakers can be accessed and controlled. When programming breaker controls the user has access to various layout configurations via a library. Programmed blockings remain active when manual control of the breaker is used. Each of the highlighted breakers in the LCD can be further controlled by the keys »O« and »I«. For security, access to SYMAP®’s parameter and breaker control data is protected by a code system, accessed by a password.

Terminal connections All connections to SYMAP® are made with terminal plugs on the back of the device, allowing the device to be exchanged easily. 

Analog input for measurement 

SYMAP® provides inputs for analog sensors at the rear of the device. If terminal plugs for the CTs are disconnected, the circuits will be linked automatically so there is no disconnection in the CT circuit loops. A total of 17 analog inputs for current and voltage transformers are used for protection functions. The following list shows possible connections for current transformers (CT) and potential transformers (PT): •  3 x CT inputs for feeder current •  1 x CT input for ground current •  3 x PT inputs for feeder voltage •  3 x PT inputs for 1st bus bar voltage •  3 x PT inputs for 2nd bus bar voltage •  1 x PT input for ground voltage 

Communication 

SYMAP® can serve as the main bay controller for the power management system or substation system. The following list shows the station system items available through  SYMAP®: • remote supervision •  remote control •  remote parameter setting •  central registration of measured and calculated values •  central event logging •  central fault recording, analysis and logging •  plant power management 

Communication interfaces 

SYMAP® provides communication ports available with the following interfaces and protocols: •  1 x RS 232 on the front panel for programming and data output •  1 x RS 422/485 port • 1 x PROFIBUS DP (RS485 or fiber optic port) •  MODBUS RTU •  MODBUS TCP (RJ45 or fiber optic port) •  IEC 60870-5-103 (RS485 or fiber optic port) •  IEC 61850 (RJ45 or fiber optic port) •  CANBUS 1 (communication between devices as power management system, breaker control interlocking) •  CANBUS 2 (engine control interface: MTU, VOLVO, DEUTZ etc.)