UPS Multi-Module Installation

3.4Dual Bus System

3.4.1Cabinet Installation

The Dual Bus System consists of two independent UPS configurations each consisting of one or more UPS modules. Dual Bus Systems are high availability configurations suitable for loads with multiple input terminals. For single input loads an optional Static Transfer Switch may be added and the stan- dard Load Bus Synchroniser activated. Depending on the configuration, follow the appropriate instal- lation instructions for each system.

Place the UPS modules side by side and interconnect as shown below.

The objective of the Dual-bus Synchronizer (DBS) is to keep the output of two independent UPS sys- tems (or parallel systems) in synchronization. One system is designated as the master; the other is designated as the slave. The operating modes covered comprise master and or slave operating inverter or bypass mode.

Figure 33 Typical dual bus system configuration with static transfer switch and Load Bus Synch

Bypass Supply

Bypass Supply

Input

Rectifier

Input

Rectifier

Input

Rectifier

Input

Rectifier

Q1

Q1

Q1

Q1

UPS1

CHARGER

RECTIFER

INVERTER

Q2

UPS1

RECTIFER

CHARGER

INVERTER

Q2

UPS1

CHARGER

RECTIFER

INVERTER

Q2

UPS1

CHARGER

RECTIFER

INVERTER

Q2

Q5

Q3

Q3

LBS

Q3

Q5

Q5

INTERMODULE

 

 

CONTROL CABLE

 

 

INTERMODULE CONTROL CABLE

Q3

Q5

STS

Load

3.4.2External Protective Devices

Refer to the instructions supplied in 1.0 - Single Module UPS Installation.

3.4.3Power Cables

The wiring of power cables is similar to that of single module system. The Bypass and the Main input sources must be referenced to the same neutral potential and input earth leakage monitoring devices, if installed, must be located upstream of the common neutral sinking point. Refer to the instructions in 1.0 - Single Module UPS Installation

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Emerson 30-200kVA, 50 and 60 Hz, 400V user manual Dual Bus System
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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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