appendices (cont')

selection of protection devices

Selection of protection devices installed upstream (CB1) or downstream (CB2) from Comet depends on:

the rated line current;

the required breaking capacity.

Schematic diagram for protection devices

CB2

LV switchboard

CB1

Comet

CB2

To ensure discrimination during overloads or short-circuits, the following protection devices are recommended:

Comet

Comet rated

Merlin Gerin

Merlin Gerin

 

output (kVA)

circuit breaker CB1

circuit breaker CB2

series 11

5

C60N 32A (curve D)

C60L 6A (curve Z)

 

 

 

 

 

7.5

C60N 40A (curve D)

C60N 10A (curve B)

 

 

 

 

 

10

C60N 63A (curve D)

C60N 10A (curve B)

series 31

5

C60N 25A (curve D)

C60L 6A (curve Z)

 

 

 

 

 

7.5

C60N 40A (curve D)

C60N 10A (curve B)

 

 

 

 

 

10

C60N 50A (curve D)

C60N 10A (curve B)

 

 

 

 

 

15

NC100H 80A (curve D)

C60N 25A (curve B)

 

20

NC100H 100A (curve D)

C60N 25A (curve B)

series 33

10

C60N 40A (curve D)

C60L 6A (curve Z)

 

 

 

or C60N 6A (curve B)

 

 

 

 

 

15

C60N 40A (curve D)

C60L 6A (curve Z)

 

 

 

or C60N 5A (curve B)

 

20

C60N 63A (curve D)

C60L 16A (curve Z)

 

 

 

or C60N 10A (curve B)

 

 

 

 

 

30

NC100H 80A (curve D)

C60L 16A (curve Z)

 

 

 

or C60N 10A (curve B)

Note:

The breaking capacity of the protection devices must be greater than the prospective short-circuit current.

Consult the Merlin Gerin Low Voltage Application Guide for further details.

Selection of the trip units for the circuit breakers installed upstream of the transformers must take the inrush currents (10 to 14In) into account.

11.6

Comet installation and user manual: E-6761200XT/FB

Merlin Gerin by MGE UPS SYSTEMS

Page 54
Image 54
MGE UPS Systems Comet TM 5 - 30 kVA user manual Selection of protection devices, Schematic diagram for protection devices

Comet TM 5 - 30 kVA specifications

MGE UPS Systems Comet TM 5 - 30 kVA is a reliable and efficient uninterruptible power supply (UPS) designed to ensure the smooth operation of critical systems in various applications. This UPS is particularly suited for data centers, telecommunications, and industrial environments that require high availability and robust power protection.

One of the main features of the Comet TM series is its modular design, which allows users to scale the UPS capacity as needed. This flexibility is crucial for businesses that anticipate growth or fluctuating power requirements. The UPS is available in a range of capacities, from 5 kVA to 30 kVA, allowing for tailored solutions that fit specific power needs.

The Comet TM is equipped with advanced double conversion technology, which provides clean and reliable power, isolating the connected equipment from input voltage disturbances. This technology ensures that any fluctuations in the mains supply, such as voltage sags or surges, do not affect the operation of sensitive electronic devices. Additionally, this UPS features a wide input voltage range that contributes to improved efficiency and reduced energy consumption.

An impressive aspect of the Comet TM is its high-efficiency mode, which optimizes energy consumption while maintaining power quality. This mode reduces operating costs and contributes to lower carbon footprints, making it an environmentally friendly choice. Furthermore, the UPS incorporates intelligent battery management systems, which enhance battery performance and extend their lifespan. This is essential in minimizing downtime and ensuring that backup power is readily available when needed.

The user-friendly interface of the Comet TM allows for easy monitoring and management of the system. With graphical displays and comprehensive alarms, users can promptly identify potential issues and take corrective actions. Remote management capabilities are also built into the system, enabling users to monitor and control the UPS remotely, which is particularly beneficial for businesses that operate across multiple locations.

In summary, the MGE UPS Systems Comet TM 5 - 30 kVA is designed for organizations that need reliable power protection and high efficiency. With its modular scalability, advanced double conversion technology, high-efficiency mode, intelligent battery management, and user-friendly interface, the Comet TM series stands out as a robust solution for critical power applications. Its combination of features ensures that businesses can maintain uninterrupted operations while benefiting from cost savings and a reduced environmental impact.