World Of Controls understands the criticality of your requirement and works towards reducing the lead time as much as possible.
SPM-D21 - Synchronizer and Load Sharer is available in stock which ships the same day.
SPM-D21 - Synchronizer and Load Sharer comes in UNUSED as well as REBUILT condition.
To avail our best deals for SPM-D21 - Synchronizer and Load Sharer, contact us and we will get back to you within 24 hours.
TECHNICAL SPECIFICATION:
Part Number: SPM-D21
Manufacturer: Woodward
Series: SPM-D Digital Synchronizers
Input Voltage: 100–480 Vac (Three-Phase)
Frequency: 50/60 Hz
Control Output: Analog or Discrete (Configurable)
Display: Integrated Liquid Crystal Display (LCD)
Enclosure: Front Panel Flush Mounting
Operating Temperature: -20 °C to +70 °C
Status: In Stock
FUNCTIONAL DESCRIPTION:
The SPM-D21 is a microprocessor-based digital synchronizer designed for three-phase AC generators equipped with Woodward or other compatible speed governors and automatic voltage regulators (AVR). This module serves as a comprehensive control solution, managing frequency, phase, and voltage matching between the generator and the busbar. By utilizing advanced digital processing, the SPM-D21 ensures precise synchronization, significantly reducing the mechanical stress on the prime mover and electrical stress on the generator during breaker closure.
SEAMLESS CONNECTIVITY & COMMUNICATION:
The Synchronizer and Load Sharer provide a versatile interface for both standalone and parallel operations. It features configurable analog outputs for speed and voltage bias, alongside discrete inputs and outputs for breaker control and status monitoring. The integrated LCD and front-panel keypad allow for real-time monitoring of phase angles, voltage differentials, and frequency deviations, giving operators a clear, high-resolution view of the synchronization process before the Close command is executed.
ADVANCED SAFETY & DIAGNOSTIC FEATURES:
The module includes integrated check-synchronizing functions to prevent out-of-phase paralleling, which could lead to catastrophic equipment failure. It also features comprehensive self-diagnostics and alarm outputs that alert operators to synchronization timeouts or parameter mismatches. Built for long-term stability in industrial power environments, the unit is protected by a ruggedized housing that meets international standards for vibration and electrical interference resistance.
LIFECYCLE SUPPORT & AVAILABILITY:
World of Controls offers the SPM-D21 in both unused and professionally refurbished conditions to support your power generation infrastructure. Every unit is subjected to rigorous functional validation and calibration to ensure it meets original manufacturer specifications. Our global logistics team facilitates rapid shipping for emergency replacements, and our engineers are available 24/7 to assist with parameter configuration and system integration. Contact us today to secure this essential synchronization module.
What is the Woodward SPM-D21?
The SPM-D21 is a digital synchronizer used to automatically match the frequency, phase, and voltage of a generator to a busbar before closing the circuit breaker.
Can the Synchronizer and Load Sharer control the voltage as well as the speed?
Yes. The Synchronizer and Load Sharer provides bias outputs for both the speed governor (to match frequency/phase) and the Automatic Voltage Regulator (AVR) to match the voltage levels.
What is the difference between the SPM-D21 and other SPM-D models?
The Synchronizer and Load Sharer is part of the package series often used for specific synchronization applications involving three-phase sensing and manual/auto control modes. Variations typically depend on the specific I/O requirements and communication protocols needed.
Is the SPM-D21 compatible with non-Woodward governors?
Yes, as long as the governor or AVR accepts a standard analog bias signal (e.g., ±5V or ±10V) or discrete increase/decrease pulses, the SPM-D21 can be integrated into the system.
