Description
DEIF
TYPE: CSQ-3 MARINE
MULTI-FUNCTION SYNCHROSCOPE METER
BUSBAR INPUT: 415V, 0,5MA, 50/60HZ
GEN INPUT: 415V, <20MA, 50/60HZ
SYNC OUTPUT: 250 VAC / 24VDC, 8A RES
The DEIF CSQ-3 Marine is a multi-function synchroscope meter designed for generator synchronisation within marine power management and control systems. It monitors and displays the phase relationship between an incoming generator and the live busbar, enabling safe and accurate parallel operation of generators onboard vessels. As a core component of the marine control system, it supports efficient power distribution management and helps prevent damage caused by out-of-phase synchronisation. The CSQ-3 accepts busbar and generator inputs at 415V, operating across both 50Hz and 60Hz networks, and provides a sync output rated at 250 VAC or 24VDC at 8A resistive, making it compatible with a range of downstream switching and control devices.
Key Features
✓ Multi-function synchroscope functionality displaying phase angle between incoming generator and busbar, supporting safe parallel operation within marine power control systems.
✓ Dual voltage input capability: busbar input at 415V / 0.5mA and generator input at 415V / <20mA, operating on both 50Hz and 60Hz electrical systems as specified.
✓ Sync output rated at 250 VAC or 24VDC, 8A resistive — compatible with a range of control relays, switchboard automation panels, and downstream switching devices typical in marine power management configurations.
✓ Designed for marine environments, suitable for installation within main switchboard panels, generator control panels, or power management system enclosures; exact mounting and environmental ratings subject to confirmation from original documentation.
✓ Direct replacement or retrofit component for DEIF-based marine power control installations; compatibility with specific panel configurations and controller versions should be verified against vessel nameplate data and system drawings prior to installation.
Marine Applications
✓ Main switchboard synchronisation panels on merchant vessels, tankers, and bulk carriers operating multi-generator power plants requiring precise paralleling control.
✓ Generator control and power management systems on offshore support vessels, platform supply vessels, and dynamic positioning-equipped ships where generator synchronisation is critical to operational continuity.
✓ Diesel-electric propulsion vessels where multiple generating sets are brought online in parallel and accurate phase matching is essential to system stability and protection.
✓ Passenger ferries, cruise ships, and RoPax vessels with complex electrical distribution arrangements requiring reliable, continuous synchronisation monitoring at the switchboard level.
✓ Retrofit and upgrade projects on ageing vessel electrical systems where existing DEIF instrumentation is being refurbished or replaced to restore full synchronisation functionality.
Why Marine Engineers Choose
The DEIF CSQ-3 Marine is a trusted synchroscope meter recognised for its clear multi-function display, dual-frequency compatibility, and practical sync output ratings that integrate directly with shipboard switching and automation equipment. Its straightforward electrical interface and DEIF’s established presence in marine power management make it a reliable choice for engineers maintaining or upgrading generator paralleling systems.
Ideal For
Merchant vessels, tankers, bulk carriers, offshore support vessels, dynamic positioning ships, passenger ferries, cruise ships, and any commercial or industrial marine platform operating multi-generator 415V electrical systems requiring accurate generator synchronisation.
Technical Support & Compliance
Technical assistance is available to support remote troubleshooting, onboard commissioning, system integration, and retrofit planning for DEIF synchronisation instrumentation within marine power management and control systems. Guidance on wiring, panel compatibility, and functional testing can be provided subject to confirmation of the specific installation context. To confirm compatibility and suitability for your vessel, buyers are advised to share nameplate photographs, any available part numbers or drawing references, the power management system model and software version, switchboard panel configuration details, and vessel name or IMO number where relevant. All compatibility assessments are subject to confirmation based on the documentation provided.




