EMRI ASR150 Static Exciter VCB01 V1.2

EMRI ASR150 Static Exciter Hardware VCB01 V1.2 Automatic Voltage Regulator (AVR)

The EMRI ASR150 is a universal static exciter and Automatic Voltage Regulator (AVR) with exceptional performance for accurate voltage control. The device is equipped with the VCB01 V1.2 control board, and is designed to provide excitation power to a wide variety of generator types. The ASR150 provides stable output to protect sensitive on-board electronics and machinery from variable marine loads to steady-state industrial power demands.

The EMRI ASR150 Static Exciter delivers rock-solid power stability & peak performance to your marine or industrial generator systems. its is the gold standard in voltage regulation and its gear is built to be reliable in the harshest situations.

Technical Specifications: EMRI ASR150

Key Features

• Universal Compatibility: Works with practically any generator, regardless of its excitation power needs.
• Durable Construction: Coated with a high quality PUR (Polyurethane) covering to resist vibration, moisture and salt loaded air.
• Fast Transient reaction: A fast transient reaction time is provided with a stable and accurate voltage output for sudden load fluctuations.
• Integrated Protection: Phase loss detection and built-in frequency trip (factory chosen at 45Hz) for complete system safety.
• Easy maintenance: No specialized software required for installation, calibration and adjustments. Onboard potentiometers are employed, and are intuitive.

Applications:

• Marine diesel generator synchronization.
• Industrial standby/emergency power plants.
• Retrofitting obsolete or discontinued AVR systems.
• Heavy-duty dredging and offshore power supply units.

Best Professional Practice: Guidance from NDMarineTech’s Engineer

1. Terminal Integrity Always re-torque your power terminals after installation . Connections can loosen over time due to the mechanical vibration inherent to shipboard generator rooms, causing arcing.
2. Stability Tuning: Before you start, make sure the stability pots (P and I) are centered. If you see “hunting” (voltage oscillation), turn the P-potentiometer clockwise until stable. If the voltage still goes nuts, check your sensor connections first.
3. Heat Dissipation: Make sure the cabinet where the ASR150 is installed has enough ventilation. The machine is durable but trapped heat is the silent enemy of electrical components.
4. Frequency trip setting: Do not forget the frequency trip setting. If your ship is experiencing frequency drop caused by governor problems on the engine the ASR150 will automatically reduce the voltage of the generator to protect your windings. Try this on your annual maintenance.
5. Cleanliness: Make sure the PUR coating is intact if you are in a humid climate. If you see any corrosion around the gate pulse terminals, use an electronics-safe contact cleaning to avoid signal drift.