emergency off

shunt trip connection

Installation of an emergency off function must be carried out in compliance with applicable regulations. When an external emergency off function is activated, the AC input to Comet must be cut to ensure protection of life and property. However, this action does not cut the supply of power to the load protected by Comet because the system continues to operate on battery power.

To power down the entire installation via an emergency off function, the action must also turn off the following via a single device:

the battery circuit breaker 4 ;

the circuit breaker for the additional battery cabinet(s), if applicable;

and a circuit breaker placed downstream of the UPS, otherwise the UPS output remains live for approximately 3 seconds after the emergency off function has been activated.

This requires installation of an MX shunt trip.

check that the upstream circuit breaker on the low voltage switchboard is in "off" position;

check that the input power switch 1 and the battery circuit breaker 4 are in "off" position;

remove the connection cover panel 13 from the Comet;

supply the shunt trip coil with AC power across terminals 1 and 4;

terminals 2 and 3 may be used to supply (using a voltage identical to that of the

shunt trip) lights indicating the position of the battery circuit breaker 4 (breaking capacity of contacts is 1300VA);

once the connections are made, reposition the connection cover panel.

Connection diagram for MX shunt trip to terminal block XR3

 

 

Comet

 

1

4

2

3

emergency

 

 

 

off button

 

 

 

N

Ph

N

N

 

 

circuit

circuit

 

220 to 240V

breaker

breaker

 

50/60Hz

on light

off light

Comet XR3

battery emergency

terminal block

 

 

off

(exept Comet S11

 

 

 

L– L+

 

/ S31 of 5kVA)

 

1 2 3 4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1 2 3 4

XR1/XR3

 

terminal block

 

for Comet

 

S11 / S31

 

of 5kVA

XR3 XR3 XR1

battery emerg. off Mains 2 (optional) secure the shielding of the cable to the stud provided on the connection cover panel (see appendices).

Merlin Gerin by MGE UPS SYSTEMS

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

10.3

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MGE UPS Systems Comet TM 5 - 30 kVA user manual Emergency off, Shunt trip connection

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.