ABB 800 Series Turbine Modules Auto Synchronizer AS800

ABB 800 Series Turbine Modules  Auto Synchronizer AS800

DESCRIPTION

The Auto Synchronizer AS800 adds automatic  circuit-breaker closure capability to the System  800xA or to any other controller with Profibus  interface. It can be used for generator to grid  synchronization, as well as for peer to peer  bus synchronization in switchyard applications.  The AS800 module supports high and low  range (0-130 VAC and 0-50 VAC) bus input  voltages operating at either 50 or 60 Hz.  The AS800 functionality includes automatic  matching of voltage, frequency and phase, as  well as automatic generator breaker closure.

Additional Features

Built-in Profibus Interface

„ Non-proprietary communication for true  open architecture integration  

„ Master and Line Redundancy

Sync Verification

The AS800 has a built-in independent  synchronization circuit which serves as a  check to the primary circuit.  When voltage, frequency, and phase match  occur, the AS800 will only close the breaker  when the primary and secondary  synchronization circuits are in agreement.

Dead Bus Capability

The AS800 has the intelligence to recognize  dead bus situations, and upon external  enabling (Dead Bus Enable input), will perform  breaker closure.

Stand-Alone Mode

The AS800 can operate in harmony with a  master controller (such as AC800M) via  Profibus communication. It can also operate  independently with hard-wired digital inputs  and serial communication via an RS-232  physical interface.

Inputs

The AS800 field inputs include two AC  voltage signals (buses to be synchronized)  and eight digital inputs for process  feedbacks and Stand-Alone Mode interface.

2 AC Inputs (120VAC 50/60Hz)

„ Line / Generator  

„ Bus A / Bus B (switchyard applications)

2 Digital Inputs (24/48/125VDC, 120VAC)

„ Generator Breaker  

„ Dead Bus Enable

6 Digital Inputs (24/48VDC)

„ Breaker Status Feedback 

„ Independent Relay Feedback 

„ 4 Stand Alone Mode Permissives

Outputs

There are six outputs used to drive external  relays (ROM810) for voltage regulator  control, frequency control, and generator  breaker control.  The two breaker control relays, Main and  Indicheck, can be connected in series.

6 Relay Outputs  

„ Generator Breaker Main  

„ Generator Breaker Indicheck  

„ Volts Raise 

 „ Voles Lower  

„ Speed Raise  

„ Speed Lower

Applicable Hardware  

The Autosynchronizer AS800 has three main  components, conveniently designed for simple  integration and quick assembly.  

„ Common Processor Module (CPM810)  Executes the autosynchronization software  algorithms and communicates with the  master controller via Profibus DP.  

„ Auto Synchronization Module (ASM810)  Receives and digitizes the field inputs.  

„ Terminal Base Unit  Houses the CPM810 and ASM810 modules  and provides terminals for power, field inputs,  and communication.

The AS800 can interface to one or more Relay  Output Modules (ROM810), based on the  requirements of each specific application.

AS800 Hardware  

„ 1 -CPM810 Common Processor Module  

„ 1 -ASM810 Auto Synchronization Module  

„ 1 -TBU810 Terminal Base Unit  

„ ROM810 Relay Output Module

Profibus Interface to Control Processor  

„ Non-proprietary communication for true  open architecture integration  

„ Master and Line Redundancy

Flexible Installation Configurations  

„ Din Rail Mountable  

„ Standard 24VDC power supplies  

„ Existing cabinet installation for retrofits  

„ Turbine deck mounting eliminates wiring  for new installations

Component Commonality  

„ CPM810, TBU810 and ROM810 are  common to all three turbine products  (AS800, TP800, and VP800)  

„Provides application flexibility and  convenience  

„ Reduces spare part costs