Products Description
I. Model Interpretation
Model: PPD117A3011
Original Factory Material Code: 3BHE030410R3011
Product Series: PPD Series Excitation Processor, belonging to ABB Relion®670, UNITROL6000 complete excitation control system
Core Hardware Parameters
Electrical Specifications
Power Supply: DC24V ±20% (power supply fed into the cabinet system)
Main Controller: 32-bit DSP real-time processor, closed-loop AVR rapid adjustment
Communication Interface: Ethernet + RS485, supports Modbus TCP, IEC61850, Profibus, connects to power plant DCS system
Operating Environment: -20℃～+60℃, storage - 40~+85℃, humidity 5%~95% without condensation
Physical Dimensions & Weight
Form: 265×132×38mm, rack slot embedded installation (standard excitation machine cabinet slot)
Net Weight: 0.78kg, metal shielding shell, industrial control board card structure
Core Product Functions (Excitation Three Major Controls)
AVR Automatic Voltage Regulation: Real-time collection of terminal voltage, automatic adjustment of rotor excitation current, stabilizing generator grid-connected voltage (core function)
PSS Power System Stabilizer: Suppressing low-frequency oscillations in the power grid, improving the stability of unit grid connection
Full-range Excitation Protection: Over-excitation, under-excitation, rotor grounding, loss of excitation protection (ANSI24/40/64F relay protection logic)
Dual Modes: Automatic / Manual excitation switching, adaptive adjustment for unit start-stop, load shedding, islanding conditions
Compatible Equipment & Application Scenarios
Matching Units
Thermal power turbine generators, hydropower water turbine generators, gas turbine power generation units, self-owned power plants synchronous machines, UNITROL6000 full series excitation cabinets standard main control board
Industry Scenarios
Excitation system retrofit parts for thermal power plants, hydropower stations, distributed energy power stations, chemical / steel self-owned power plants; original factory without shutdown, new original equipment + dismantled spare parts circulation
