Description
Core Product Summary
The DEIF FAS-113AD is an automatic synchronizing unit designed to parallel an incoming generator with a live busbar. Part of the DEIF FAS-113 instrument series, the module continuously monitors and compares voltage, frequency, and phase-angle differences between the generator source and the distribution busbar.
When all parameters converge within predefined safety and tolerance limits, the FAS-113AD outputs a timed closing signal to the generator circuit breaker, factoring in the inherent mechanical closing delay of the breaker to ensure seamless grid connection. It is engineered for integration into switchboards and power management systems across land-based and marine installations, providing stable frequency matching and phase supervision.
Key Technical Specifications
| Specification Parameter | Verified Value / Detail |
|---|---|
| Product Type | Automatic Generator Synchronizer / Circuit Breaker Closing Module |
| Product Family | DEIF FAS-113 Synchronizing Instrument Series |
| Core Functions | Generator-to-busbar synchronization, voltage/frequency matching, phase-angle supervision |
| Mounting Type | 35 mm DIN rail or base mounting |
| Input Signals | Generator voltage and Busbar voltage sensing inputs |
| Control Outputs | Relay outputs for speed/frequency adjustment (raise/lower) and circuit breaker close command |
Detailed Product Overview
The DEIF FAS-113AD acts as a critical control link in multi-generator environments, preventing out-of-phase synchronizations that can cause severe mechanical shock to alternators and electrical stress across distribution networks. By evaluating slip frequency, voltage windows, and phase alignment simultaneously, the unit determines the exact advance time required to trigger the breaker close circuit precisely at zero phase difference.
Integration of the FAS-113AD requires exact matching of auxiliary supply voltage, measuring voltage ratings, and system frequency configurations to match existing switchboard layouts. The module interfaces with electronic speed governors or motorized potentiometers via control output contacts to automatically adjust incoming generator frequency prior to closing. Proper configuration of its internal response parameters and adherence to terminal designations are essential for stable operation.
FAS-113AD
FAS-113AD
System Compatibility & Integration Requirements
| Item / Dependency | Verified Compatibility or Requirement | Practical Note |
|---|---|---|
| Switchboard Infrastructure | Compatible with standard marine and industrial power generation panels | Designed to mount on standard 35 mm DIN rails or via base screw fixtures. |
| Voltage & Frequency Inputs | Matched to specific system auxiliary power and potential transformer (PT) ratings | Must verify exact part number variant for rated measuring voltage and control supply voltage. |
| Governor / AVR Interface | Discrete relay output control connections | Requires interposing relays for inductive loads or DC-controlled actuator pilot motors. |
| Circuit Breaker | Breakers equipped with electrical close coils and known mechanical delay times | Circuit breaker closing time must be factored into system configuration parameters. |
Dimensions, Mounting & Connection Notes
- Mounting Configuration: Standard 35 mm DIN rail installation or direct base mounting using panel screws.
- Spacing Considerations: Ensure adequate clearance around the housing to maintain thermal dissipation when installed alongside other control relays.
- Terminal Connections: Incorporates screw-type terminals suitable for industrial copper conductors; verify wiring against the exact variant schematic label before applying control power.
FAQ
What is the DEIF FAS-113AD?
The DEIF FAS-113AD is an automatic generator synchronizer module used to safely parallel an incoming generator with a live busbar by matching voltage, frequency, and phase angle.
What parameters does the module monitor before closing the breaker?
It continuously supervises the voltage difference, slip frequency (frequency difference), and phase-angle relationship between the generator and the busbar.
How does the unit account for circuit breaker response time?
It calculates a phase angle advance based on the configured breaker closing time, transmitting the closing signal ahead of absolute zero phase so the contacts close precisely on time.
Is the FAS-113AD hot-swappable?
No. Control power and sensing inputs should be fully isolated before installing or removing the unit to prevent unintended control pulses or damage to terminal connections.
What should be verified before replacing or installing an FAS-113AD unit?
Because variant suffixes like “AD” designate specific configuration options, the exact supply voltage ratings, measuring voltage inputs, and terminal diagrams on the unit’s physical label must be confirmed against the system schematic.
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