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Products Description
Technical Specifications
Model: UNS0007A‑P V1
PCB Part No: HIEE305098R0001
Complete Assembly P/N: HIEE410730P201
Power Supply: 24V DC (±15%), typical power consumption 5.5W
Main Application: UNITROL 5000 / UNITROL 6000 static excitation system
Function: Thyristor firing pulse output, excitation closed‑loop regulation, fault diagnosis
Communication: System internal high‑speed bus, supporting redundant controller hot‑swap
Isolation: 2kV AC galvanic isolation between power circuit and control circuit
Operating Temperature: ‑10℃ ~ +65℃; Storage temperature:‑40℃ ~ +85℃
Humidity: 5%‑95% RH, non‑condensing
Protection Class: IP20 (cabinet internal installation)
Mounting: Rack plug‑in installation for excitation cabinet
Dimension: 260mm × 220mm ×25mm; Weight: approx 0.58kg
UNS0007A‑P V1 (HIEE305098R0001 / HIEE410730P201) is the core firing & control assembly for ABB UNITROL series generator static excitation systems. HIEE305098R0001 refers to bare circuit board, HIEE410730P201 represents the complete assembled unit.
This board outputs precise thyristor firing pulses, implements closed‑loop adjustment for generator excitation current, stabilizes generator terminal voltage, and completes multiple protection functions such as over‑excitation, under‑excitation and over‑current. It supports dual redundant hot‑standby operation, realizes bumpless switch‑over upon main‑controller failure, greatly improving power‑plant unit operation reliability. On‑board LED indicators display power, running status and fault alarm for convenient on‑site inspection and troubleshooting.
Widely used in thermal power, hydropower and other power‑generation industries for synchronous generator excitation cabinets. When replacing spare parts, verify full model number, assembly number and hardware revision to ensure system compatibility. Complete power‑off and discharge operations before installation to avoid board burnout and excitation system malfunctions. Suitable for on‑site fault replacement and long‑term spare‑part stocking of existing UNITROL excitation equipment.
