The Basler Electric MVC 104 Manual Voltage Control is a backup excitation control device designed for generator systems using Basler automatic voltage regulators. It provides manual control of generator excitation voltage when the automatic voltage regulator or sensing circuit requires maintenance or backup operation.

The MVC 104 allows operators to switch between automatic regulation, manual voltage adjustment, and system shutdown modes. It uses a variable autotransformer, rectifier bridge, control switch, and protective fuses to supply adjustable DC excitation power to the generator field.

This unit is commonly installed in generator excitation systems for power plants, marine vessels, industrial generators, and emergency power applications where reliable voltage control continuity is required.

📌 Product Parameters

📌 Product Datasheet

📌 Common Questions & Answers

❓ Q: What is the main function of the Basler MVC 104?
A: The MVC 104 provides manual control of generator excitation voltage and serves as a backup control device when automatic voltage regulation is unavailable.

❓ Q: Which systems use MVC 104?
A: It is designed for use with Basler automatic voltage regulators in brushless exciter generator applications.

❓ Q: What output does MVC 104 provide?
A: The unit provides up to 110 VDC output with 7 ADC continuous current capability.

❓ Q: What are common failure symptoms?
A: Typical issues include unstable generator voltage, loss of manual excitation adjustment, blown fuses, switch failure, or incorrect DC excitation output.

❓ Q: Can MVC 104 replace MVC 108 or MVC 232?
A: No. Replacement depends on generator excitation requirements, input voltage, output rating, and compatible voltage regulator model.

❓ Q: What should be checked before installation?
A: Verify generator specifications, AVR model, input voltage, output requirements, wiring connections, and mounting configuration before replacement.

📌 Recommended Basler Electric Models

1. Basler MVC 108 Manual Voltage Control – 240 VAC input version with 220 VDC output capability.
2. Basler MVC 232 Manual Voltage Control – Manual excitation controller for SR32A generator systems.
3. Basler MVC 112 Manual Voltage Controller – Multi-output manual excitation control unit.
4. Basler MVC 112X Manual Voltage Controller – Extended manual voltage control version.
5. Basler MVC 236 Manual Voltage Controller – High-current manual excitation controller.
6. Basler MVC 300 Manual Voltage Controller – Modern manual excitation backup controller.
7. Basler MVC 301 Manual Voltage Controller – Advanced MVC series control unit.
8. Basler AVC63-4 Voltage Regulator – Analog automatic voltage regulator.
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10. Basler AVC63-12 Voltage Regulator – Brushless excitation voltage regulator.
11. Basler SR4A Voltage Regulator – Excitation control regulator series.
12. Basler SR8A Voltage Regulator – Generator automatic voltage regulator.
13. Basler DECS-150 Digital Excitation Control System – Digital generator excitation controller.
14. Basler DECS-250 Digital Excitation Control System – Advanced excitation and protection controller.
15. Basler DGC-2020 Digital Genset Controller – Generator control and monitoring system.