Description
3BHE032285R0101 Kreislauf Platte SG14755597044
Product full name: ABB 3BHE0322285R0101 Kreislauf Platte (excitation cycle board/magnetic field flashover circuit board), SAP material number SG14755597044
Brand: ABB
Series: ABB UNITOL 5000/UNITOL 6000 Static Excitation System Supporting Control Board
Product type: Excitation system dedicated control circuit board (PCB), responsible for establishing circuits for generator field flashing and excitation current circulation
Core function: As the core control board of the magnetic field establishment link in the UNITOL static excitation system, it is responsible for controlling the initial establishment process of excitation current when the generator is reconnected to the grid after starting or stopping. By using a controllable small current loop, gradually establish the generator’s magnetic field voltage to the rated level to ensure the safe grid connection of the unit. At the same time, it participates in the continuous current and cycle control of the excitation current during normal operation, and cooperates with the demagnetization circuit to achieve rapid demagnetization protection in case of faults.
Kreislauf “is German, meaning” cycle/loop “, referring to the circuit board managing the establishment of the excitation current cycle and the logic of the freewheeling loop.
Technical features:
Adopting high reliability industrial grade electronic components to adapt to high temperature and strong electromagnetic interference environments inside the excitation cabinet
Integrated magnetic field flashover control logic, supporting manual/automatic magnetic field building modes
Built in current sampling and comparison circuit, real-time monitoring of excitation circuit current status
Cooperate with the excitation regulator main control board (such as PC D230/CCM module) to receive voltage regulation commands and drive the excitation power module
Support complete excitation cycle management for generator no-load boosting, grid connected initial excitation, fault demagnetization, etc
Onboard operation status indicator light, convenient for on-site fault diagnosis
Key electrical parameters:
Supply voltage: 24V DC (from excitation system control power supply)
Power consumption: less than 3W
Input signals: generator voltage sampling (PT signal), excitation current sampling (CT signal), system status signal
Output signals: excitation power module trigger pulse, magnetic field flashover contactor drive signal, demagnetization circuit control signal
Signal delay: less than 5ms
Physical parameters:
Dimensions: Approximately 230mm x 160mm x 40mm (width x height x depth, standard UNITOL cabinet installation dimensions)
Weight: Approximately 0.8kg
Installation method: DIN rail installation or screw fixation on the back panel of the excitation cabinet
Protection level: IP20 (module level)
Working temperature: -10 ° C to+55 ° C
Storage temperature: -25 ° C to+70 ° C
Communication and Interface:
Connected to the main control board through an internal bus (non independent communication module)
Wiring terminals: excitation current sampling input, magnetic field flashover contactor output, demagnetization relay output, status signal input
Typical application scenarios:
Thermal/hydroelectric power plants: initial establishment and grid connection control of synchronous generator excitation
Industrial self owned power plants: excitation for starting large synchronous motors
Ship power station: initial excitation control for generator grid connection
Rail Transit: Synchronous Compensation Machine Excitation for Traction Power Supply System
Related models in the same series:
3BHE022291R0101 PC D230 (CCM excitation regulator measurement board, upper control board of Kreislauf Platte)
3BHE02293R0101 PC D232A (Excitation Regulator Controller)
3BHE030579R0003 UNITOL 1020 (Small Power Excitation System)
3BHB045647R0003 (Excitation thyristor power module, power execution device driven by Kreislauf Platte)
3BHE024747R0101 GDC801A (Crowbar protection board, combined with Kreislauf Platte to achieve overvoltage protection)
UNS0881A-P (excitation system interface board, installed in the same cabinet as Kreislauf Platte)
