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ABB 216NG63

The ABB 216NG63 is an auxiliary DC power supply unit designed for ABB RE.216 series generator protection and control systems. It belongs to the 216NG6. family of DC/DC converters and is used to convert station battery voltage into a stable 24 V DC supply for electronic control units and input/output modules.

The unit is designed for industrial power system applications where reliable auxiliary power is essential for continuous monitoring, protection, and control. It provides electrical isolation between the input and output circuits, helping protect sensitive electronic equipment from disturbances in the station battery supply.

The ABB 216NG63 is suitable for integration into existing ABB RE.216 installations, including generator protection systems and power plant control equipment.

2. Technical Parameters

The 216NG63 is specifically intended for station battery systems with a nominal voltage of 220/250 V DC. Exact output ratings and installation details should be matched to the installed hardware revision.

3. Product Features

Stable 24 V DC power supply

Converts high-voltage station battery power into a regulated auxiliary supply for compatible electronic modules and control equipment.

Electrical isolation

Provides electrical separation between input and output circuits, helping reduce the effects of electrical disturbances on connected control electronics.

Industrial reliability

Designed for continuous operation in power generation facilities, electrical substations, and industrial protection systems.

Rack-mounted modular design

Its plug-in construction supports installation in compatible ABB control racks and simplifies replacement during planned maintenance.

Status monitoring and fault indication

Front-panel indicators and associated signaling functions help maintenance personnel identify power supply conditions and troubleshoot faults.

Redundant power supply capability

Compatible rack configurations can use two auxiliary supply units to improve power availability for supported system components. Redundancy depends on the rack configuration and correct installation.

4. Structural Composition

The ABB 216NG63 consists of several functional sections designed to provide reliable auxiliary power within a protection and control rack.

• DC input section: Connects to the station battery supply and accepts the specified 165–312.5 V DC input range.

• DC/DC conversion circuit: Converts the input voltage to the required 24 V DC auxiliary output.

• Electrical isolation section: Separates the input and output circuits to improve electrical protection.

• Output distribution section: Supplies compatible internal electronic units and I/O modules through the rack power connections.

• Protection circuitry: Helps protect the unit against overload and short-circuit conditions.

• Status indication and signaling: Supports visual power-status monitoring and fault reporting.

• Mechanical housing and connectors: Provide rack installation, electrical connections, and access for authorized maintenance.

The exact internal layout and connector arrangement may vary by hardware revision and rack configuration.

5. Application Fields

Power Generation

Used in thermal power plants, hydropower stations, and other generating facilities to supply auxiliary power to compatible generator protection and control equipment.

Electrical Substations

Supports control and protection systems in medium- and high-voltage substations where station battery supplies are used.

Generator Protection Systems

Provides auxiliary DC power for compatible ABB RE.216 equipment used in generator monitoring, fault detection, and protective functions.

Industrial Electrical Protection

Can be incorporated into protection and control installations for large motors, transformers, and associated electrical equipment where the relevant ABB system is installed.

Legacy System Maintenance

Suitable as a replacement component for maintaining existing ABB RE.216 installations, subject to verification of the original part number, hardware revision, and rack configuration.

6. Conclusion

The ABB 216NG63 Auxiliary DC Power Supply Unit is an important power component in ABB RE.216 generator protection and control systems. Its principal function is to convert a 220/250 V DC station battery supply into 24 V DC auxiliary power while providing input-to-output electrical isolation.