WOODWARD 8290-191 Parallel Controller for Synchronous Load Distribution I. Product Overview

Core Electrical Parameters Table

Parameters Specification Parameters

Power Supply DC 18～32V (nominal 24VDC, compatible with 12/24V battery units)

Power Consumption Rated ≤ 9W

Voltage Sampling AC 0～480V (PT secondary 100V/230V/400V selectable by software)

Current Sampling CT secondary 1A/5A programmable switch

Applicable Frequency 45～65Hz (50/60Hz universal)

Output Contacts Up-frequency / Down-frequency, Boost / Down-boost, Closing Relay Passive Contacts

Environmental Temperature -20℃～+70℃, Embedded installation in cabinet

Overall Weight Approximately 0.8kg, Embedded installation with panel opening

Protection Level IP20 (used inside cabinet)

Function Features

Fully Automatic Synchronous Grid Connection: Automatically capture frequency difference, voltage difference, and phase difference, and automatically output closing command when the synchronization is met, supporting dual modes of islanding / grid connection;

Multi-unit Load Equalization: CAN bus networking, up to 16 units of units connected in parallel, automatic active power equalization, supports droop / isochronous switching;

Dual Micro-Tuning Output: One for speed control (up / down throttle), one for voltage control (up / down excitation), synchronous + reactive fine adjustment;

Integrated Grid Protection: Over-frequency / under-frequency, over-voltage / under-voltage, reverse power, out-of-step protection, abnormal locking of closing;

Panel Buttons + LCD Display: On-site viewing of voltage, frequency, active power, reactive power parameters, simple on-site debugging without computer; Supports 4~20mA remote given load.

Application Scenarios

Factory self-owned diesel / gas power stations, data center UPS backup power generation units;

Oilfield associated gas units, self-owned power plants in refining and chemical plant areas, multi-unit parallel connection;

Engine room auxiliary equipment parallel system of ships, small-scale distributed gas power station renovation and replacement.

Comparison of Common Models of the Same Series SPM-D2

8440-2189: SPM-D2-1040B/NYB (Full-function high-end configuration, with reverse power + reactive distribution)

8440-2175: SPM-D2-1010B/YB (Basic synchronization + active power equalization, your previous model)

8440-2192: SPM-D2-1060B (High-voltage 480V dedicated model)