216EA61B ABB REG216 Analog Input Unit

The 216EA61B is a REG216 Analog Input Unit. The 216EA61 input unit receives analog measurement variables from the 216GW61 input transformer module, digitizes them, and transmits them to the B448C bus. This unit has 24 analog input/output channels, meaning up to two 216GW61 input transformer modules can be connected to one 216EA61 input unit. The 216EA61 device itself requires no (hardware) setup. Measurement channels are assigned to activated protection functions (configuration) via a portable user interface (PC) connected to the 216VC62a unit. This unit is a plug-in unit with a width of 2 standard divisions (2T). The internal auxiliary power supply voltage is 5V, provided by a 24V auxiliary DC power supply within the unit. The main components of this unit include:

• A 24-channel (measurement) analog (-40 V...+40 V) to digital converter
• A processor (80C186) for preprocessing measurement variables
• A bus interface (64 KB DPM/RAM)
• A program memory (128 KB EPROM)
• A main memory (64 KB RAM)
• An electrically erasable programmable data memory (8 KB EEPROM).

Front Panel Signals and Controls

• LED “ALARM” (Red): Illuminates when an internal fault occurs in the unit.
• LED “MST” (Yellow): Master indicator. Illuminates when the device communicates with the bus and exchanges data. (May only illuminate briefly or flash)
• LED “RUN” (Green): Run indicator. Illuminates during program execution, i.e., continuously illuminated during normal operation. (If this LED is not illuminated, the digitized measurement variables will not be transmitted to the bus.)
• Socket “PASSIVE”: When the short-circuit pin is inserted, the A/D converter will be locked, and no data (digitized measurement variables) will be transmitted to the bus. Stored data and measurement variables will not be deleted.
• Socket "RESET": Briefly inserting the shorting pin will restart the program. All units will be reinitialized, and the stored measurement variable tables will be deleted.

REG216 System and Application: Generators are among the most complex and expensive single components in a power system. Therefore, generator protection systems are crucial. The REG216 generator protection system is currently available in two versions: REG 216 and REG 216 Compact. This system can be used for the protection of generators and generator transformers across a wide power range, such as hydroelectric, pumped storage, gas, combined cycle, steam, and cogeneration power plant units. The REG 216 generator protection system provides continuous and comprehensive monitoring, recording hardware and software information and fault signals immediately upon occurrence. The REG216 system also offers redundant configurations, with two independent protection function groups installed in two separate hardware racks of REG216 or in a single REG216 Compact rack, but the two hardware groups are completely independent. In the event of a failure in a single protection device, there is no need for preventative shutdown of critical generators. The REG 216 generator protection system can be customised to meet all specific needs by selecting appropriate software and hardware modules. A comprehensive software library includes protection, measurement, and monitoring functions.

• Protection Functions: Overcurrent (reverse and delayed); thermal overload; overvoltage; undervoltage; generator differential protection; transformer differential protection; frequency protection; df/dt; reverse power protection; limiting ground fault protection; stator ground fault protection (95%); stator ground fault protection (100%); rotor ground fault protection; voltage-controlled overcurrent protection; stator overload protection; rotor overload protection; negative sequence current protection (reverse and delayed); overexcitation protection; minimum impedance; loss of excitation; pole slip; system crash; voltage balance; inter-turn fault, etc.
• Monitoring Functions: Event logging; disturbance logging; measurement functions; voltage and current; active and reactive power; frequency; automation functions; synchronisation checks; logic circuits; AND gates, OR gates, counters; triggers, timers, integrators; FUPLA; function programming languages ​​for complex logic, etc.

REG 216/REG 216C Features include: modular configuration; selectable protection functions from a library; redundant design; wide application range; PC-aided setup menu; full numerical signal processing; continuous hardware self-monitoring; cyclically executed test programs, primarily run by software; remote diagnostic function requests; online display of measured values; event display and printouts; disturbance logging (optional); self-documentation recording of complete configuration; and communication and coordination with station control.

Ordering Information:

HESG324015R1
HESG448230R1
HESG448230R1/G