MHV dimmer

Product catalog summary

Product Overview: The document details the specifications and operational principles of the MV Induction Controller - Dimmer models MHR 320 RB, DHR 320 RB, THR 550 RB, and THR 660 RB, designed for medium voltage networks. These controllers are used for regulating voltage in lighting systems, particularly for high-pressure sodium and mercury discharge lamps.

Operating Principles: The dimmer operates by adjusting voltage levels based on external control inputs. Upon activation, the system initially sets to a minimum voltage, then transitions to an intermediate voltage for lamp heating. Voltage variation is controlled through resistors or potentiometers, allowing for modulation based on usage conditions. The system can be automated or manually adjusted.

Protection Mechanisms: The dimmer includes protection against overvoltage through spark and surge arrestors, and against overload via a temperature sensor that interrupts the power supply if necessary.

Maintenance: The control cabinet features an 'Auto' mode for automatic voltage regulation, a 'Manual' mode for manual adjustments, and a 'Help' mode for maintenance operations at maximum voltage.

Electrical Characteristics: The document provides detailed specifications for each model, including power ratings, input and output voltages, and regulation tolerances. The dimmers are designed for indoor use and utilize oil as a dielectric medium.

Physical Dimensions: Dimensions and weights for each model are specified, highlighting the physical requirements for installation.

Additional Notes: The manufacturer reserves the right to alter specifications without prior notice, emphasizing the importance of consulting the latest documentation for accurate information.

Catalog excerpts

PRODUCT LEAFLET MV INDUCTION CONTROLLER - DIMMER MHR 320 RB - DHR 320 RB - THR 550 RB - THR 660 RB For medium voltage network CCVMT Control cabinet

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ELECTRICAL CHARACTERISTICS : Type of control cabinet for : Lamps at High Pressure Sodium discharge. Lamps at High Pressure Mercury discharge (Fluorescent Ball). Design Power ratings Input voltage Max Output voltage Equivalent voltage lamp Min voltage Output Equivalent voltage lamp Total losses in kW : Power ratings CONNECTION DIAGRAM

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MHR 320 Length (mm) Width (mm) Height (mm) Total weight (kg) DHR 320 Length (mm) Width (mm) Height (mm) Total weight (kg) THR 550 Length (mm) THR 660 Width (mm) Height (mm) Total weight (kg) With constant improvements, the manufacturer may alter information without prior warning

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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