Operation

6.2Multi Module UPS—1+N

Multi-module UPS are formed by several “single unit” UPS modules to constitute “1+N”system where groups of one or more, up to six, single units operate together for the purpose of providing additional power or reliability or both. The load is equally shared between any paralleled UPS.

Figure 64 1+N multi-module UPS with external maintenance bypass switch

 

Qin UPS1

 

Qin UPS2

 

Qin UPS3

 

 

 

 

 

Qin Ext Byp

SUPPLIED BY OTHERS

 

 

 

 

 

INPUT MAINS SUPPLY

 

INPUT MAINS SUPPLY

 

INPUT MAINS SUPPLY

 

L1, L2, L3, N

BYPASS MAINS SUPPLY

BYPASS MAINS SUPPLY

L1, L2, L3, N

L1, L2, L3, N

L1, L2, L3, N

L1, L2, L3, N

L1, L2, L3, N

UPS1

CHARGER

Q1

UPS2

RECTIFER

CHARGER

INVERTER

Q2

Q1

UPS3

RECTIFER

CHARGER

INVERTER

Q2

Q1

RECTIFER

INVERTER

Q2

Q3

Q3

 

Q3

Q5

Q5

 

Q5

UPS1 OUTPUT

UPS2 OUTPUT

UPS3 OUTPUT

 

L1, L2, L3, N

L1, L2, L3, N

L1, L2, L3, N

 

Qout UPS1

Qout UPS2

Qout UPS3

 

Qout all UPS

Distribution Cabinet

Qout

BYP

 

 

 

Further, single unit or 1+N groups may be configured as “distributed redundant” systems with inde- pendent outputs that nevertheless are synchronised through a Load Bus Synchroniser (LBS) so that critical loads can be seamlessly transferred from one system to another. See 6.3 - Modes of Opera- tion for more information.

6.2.1Features of NX Multi-Module UPS Configurations

1.The hardware and firmware of single module UPS units is completely compatible with the requirements of a multi-module system. Multi-module configuration is achieved merely through settings in configuration software and control cables.

2.Parallel control cables are connected in a ring, providing both performance and redundancy. Dual-bus control cables are connected between any two UPS modules of each bus. The intelligent paralleling logic provides the user with maximum flexibility. For example, shutting down or starting up UPS modules in a parallel system can be done in any sequence. Transfers between Normal and Bypass modes of operation are synchronised and self –recovering e.g. following overloads and their clearance.

3.The total load of the multi-module system can be queried from each module’s LCD.

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Emerson 30-200kVA, 50 and 60 Hz Multi Module UPS-1+N, Features of NX Multi-Module UPS Configurations, Distribution Cabinet
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30-200kVA, 400V, 50 and 60 Hz specifications

The Emerson 400V, 50 and 60 Hz, 30-200 kVA is a robust and versatile power solution designed for various industrial and commercial applications. This equipment delivers a reliable source of power, ensuring operational continuity and efficiency for numerous critical systems.

One of the standout features of the Emerson 400V series is its exceptional load handling capability. With a kVA range of 30 to 200, it can cater to both small-scale operations and larger enterprises, making it a flexible choice for businesses looking to scale their operations. The dual frequency capability of 50 and 60 Hz allows the system to be utilized in various geographical locations, accommodating different regional power standards.

The series is built with advanced power electronics technology, resulting in a highly efficient energy conversion process. This technology not only boosts performance but also reduces energy losses, leading to significant cost savings in operational expenditures. Moreover, the Emerson 400V solution is designed with an emphasis on minimizing harmonic distortion, ensuring that it meets stringent regulations and preserving the integrity of sensitive electronic equipment.

Another critical characteristic of the Emerson 400V series is its modular design. This allows for easy upgrades and maintenance, ensuring that businesses can adapt their power solutions as their needs evolve. The system features a user-friendly interface for monitoring and managing power loads, enhancing operational oversight.

Additionally, the Emerson 400V series emphasizes robust safety features to protect both equipment and personnel. Integrated protection mechanisms, such as overload and short-circuit protection, provide peace of mind and safeguard against potential power-related incidents.

In terms of physical design, the unit is built for durability, capable of withstanding harsh operating environments while maintaining performance integrity. The compact footprint ensures that it can fit into various spaces without sacrificing power output.

Overall, the Emerson 400V, 50 and 60 Hz, 30-200 kVA system represents a comprehensive power solution that combines high efficiency, adaptability, and advanced technology, making it an ideal choice for organizations aiming for reliable power management and operational excellence.
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