The electric protection ETS device simultaneously collects the turbine unit speed signal and other switch signals that affect the operation of the turbine unit. When the collected speed signal exceeds the set specified value, or receives a switch protection signal, the electric protection device outputs a shutdown signal to control the corresponding valve to close quickly, so that the unit can be shut down in an emergency.
Features
Safety Integrity Level
SIL2/SIL3 flexible configuration hardware localization
100% domestically produced components.
The software platform is fully independent and controllable for all software and hardware technologies of the domestically produced Kylin system.
System Architecture
1oo2D/2oo3D flexible configuration
Module Introduction
AI module: 16-channel 4~20mA current input, double-ended input, input resistance ≤250Ω, current input.
PI module: 8 differential signal inputs, meeting the RS422 level specifications in GB/T11014-1989 "Electrical characteristics of balanced voltage digital interface circuits".
DI module: 16-channel dry contact signal input, response time <10ms, query voltage 24V.
AO module: 8-way 4~20mA current output, load resistance＞600Ω.
DO module: 8 relay contacts, contact voltage allowable range: 5~30VDC; contact capacity: 2A, resistive load.
CU communication module: 2 Ethernet interfaces, 2 RS485 interfaces: The Ethernet interface is used to communicate with the host computer. The RS485 interface is used to communicate with other devices through RS485RTU and ASCII protocols to transmit process data. Both communication interfaces support hot swapping.