Basler MVC-104/MVC-108/MVC-232 manual excitation controller

Product positioning and core role

Product Name: Electronic Manual Voltage Controller (MVC Series), equipped with SPC-12 accessory components, is a specialized backup equipment for various AVR automatic voltage regulators of Basler.

Core purpose: In the event of a malfunction in the automatic excitation voltage regulator (AVR damage, PT sampling circuit failure), the automatic voltage regulator is completely cut off and switched to manual control of excitation current, ensuring that the unit continues to supply power to important emergency loads until maintenance is completed; It is an essential backup redundant unit for the excitation system of the generator set.

Suitable for: Basler’s full range of analog AVC and digital DECS excitation systems, providing standard spare parts for excitation systems.

Design features: Industrial sturdy structure, some models support remote operation, and the outdoor/mobile unit can operate reliably in harsh environments.

Comparison of Electrical Parameters of Three Major Models

1. Power input (single-phase, 50~400Hz universal)

MVC-104：240Vac， Load 840VA

MVC-108：60Vac， Load 1680VA

MVC-232：120Vac， Load 1200VA

2. Excitation DC output (continuous rated)

MVC-104：110Vdc / 7A

MVC-108：220Vdc / 7A

MVC-232:55VDC/20A (high current model, suitable for low resistance excitation winding)

3. Environment and Certification

Working temperature: -40 ℃~+50 ℃;

Certification: MVC104 and MVC108 have CSA CAN/CSA-C22.2 No.14 safety certification;

4. Physical dimensions and weight

MVC-104 / MVC-108

Appearance: Width 181 x Height 340 x Depth 232 mm

Weight: 13.2 kg

MVC-232

Appearance: Width 181 x Height 340 x Depth 283 mm

Weight: 16.3 kg

Core functions and advantages

core functionality

The OFF position can physically completely disconnect the matching automatic AVR, avoiding mutual interference between the automatic circuit and the manual circuit;

2. Manually adjust the excitation output infinitely, maintain the terminal voltage in case of faults, and ensure uninterrupted power supply for critical emergency loads;

Three models support remote control, and operators do not need to stay in the generator room;

4. Integrated sturdy shell, verified for years of stable operation on site, suitable for long-term standby in emergency conditions.

applied value

1. Build an excitation dual redundancy scheme to eliminate the risk of AVR single point shutdown;

2. Suitable for emergency generator sets in hospitals, data centers, fire departments, etc. that do not allow power outages;

3. Compatible with the entire Basler series of analog and digital excitation controllers, both retrofitted and new units can be matched.

List of related Bath products

The document lists excitation and unit control products of the same series to form a complete system support:

Simulate AVR voltage regulation: AVC63-12, AVC63-4/4D/4A, AVC63-7/7F, BE350;

2 Digital excitation systems: DECS-150, DECS-250, DECS-250N (with negative excitation);

3 Protection devices: BE1-FLEX multifunctional power protection;

4 Unit controllers: DGC-2020, DGC-2020ES, DGC-2020HD (single/parallel unit measurement and control);

5 Supporting Components: SPC-12 Manual Control Supporting Components..