selection of cable cross-sections

The cross-section of cables depends on:

current levels (temperature rise);

permissible line voltage drop (3% for AC circuits, 1% for battery circuits);

installation (cable rack, troughs, etc.).

Consult the applicable standards to determine the minimum cross-sections for the desired currents.

Each of the above parameters, for a given type of Comet, is important in determining the minimum permissible cross-sections.

When confronted with several possibilities, always select the larger value. Cables must be flexible type.

The currents indicated below are maximum values given for minimum voltages:

Comet

Comet

absorbed line currents (A)

 

 

 

rated output

AC input

AC output

battery option

 

 

(kVA)

current (XR1)

current (XR2)

(XR3)

series 11

5

26

 

23

30

 

 

 

 

 

 

 

 

 

7.5

40

 

35

48

 

 

 

 

 

 

 

 

 

10

52

 

46

46

 

series 31 (1)

5

23

(9)

23

30

 

 

 

 

 

 

 

 

 

7.5

35

(14)

35

48

 

 

 

 

 

 

 

 

 

10

46

(18)

46

46

 

 

15

69

(27)

69

76

 

 

20

91

(36)

91

75

 

series 33 (2)

10

18

(26)

15 (26)

46

 

 

 

 

 

 

 

 

 

15

27

(40)

23 (40)

76

 

 

 

 

 

 

 

 

 

20

36

(52)

30 (52)

75

 

 

 

 

 

 

 

 

 

30

54

(78)

45 (78)

112

 

 

 

 

 

 

 

 

Note 1: when a "separate Mains 2" option is installed on Comet series 31 for the AC bypass input, the values in parentheses correspond to Mains 1 line currents and the others to Mains 2 line currents.

Note 2: for Comet series 33, during operation on the "static bypass" at rated output for a non-linear load, the values in parentheses correspond to the current in the AC input line neutral.

For connections to the AC input power supply and to the load, Comet terminal blocks accept the following cable cross-sectional areas:

Comet

Comet rated output

cross-sectional areas (mm2)

 

(kVA)

flexible cables

rigid cables

series 11 and

5

0 to 4

0 to 6

series 31

 

 

 

7.5 and 10

0 to 10

0 to 16

series 31

15 and 20

16 to 35

16 to 35

series 33

10 and 15

6 to 16

6 to 25

 

 

 

 

 

20 and 30

16 to 35

16 to 35

 

 

 

 

Merlin Gerin by MGE UPS SYSTEMS

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

11.5

Page 53
Image 53
MGE UPS Systems Comet TM 5 - 30 kVA user manual Selection of cable cross-sections

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.