MESSKO MBR25-16, Руководство по эксплуатации

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BA 2722549/00 15
1 Safety
1.1 Safety instructions
All personnel involved in installation, commissioning,
operation or maintenance of this equipment must:
- be suitably qualifi ed and
- strictly observe these operating instructions.
Improper operation or misuse can lead to
- serious or fatal injury,
- damage to the equipment and other property of the user
- a reduction in the effi ciency of the equipment.
Safety instructions in this manual are presented in three
different forms to emphasize important information.
1.2 Specifi ed application
The MSafe® acts as a central protection system for liquid-fi lled
transformers and reactors with oil conservator. It monitors the
insulating fl uid circuit for the presence of free gases, for loss
of insulating fl uid due to leaks and for a shock wave, due to a
spontaneous event, which moves towards the oil conservator.
Pay attention to the limit values specifi ed on the nameplate
and in the operating instructions prior to initial start-up of the
device and ensure that they are strictly observed.
1.3 Important notes on equipment operation
The user is advised to strictly comply with the national acci-
dent prevention regulations.
It is especially emphasized that work on active or live compo-
nents is only permissible while these components are either
de-energized and secured against reconnection or protected
against direct contact.
Electrical installation is subject to the relevant national safety
regulations. It is imperative to connect the protective earth
conductor (PE) to ensure trouble-free operation.
2 Product specifi cation
Installed in the pipeline between tank and oil conservator, the
MSafe® reacts to faults which occur inside the transformer.
Damages which are not visible can be detected early by the
Buchholz relay and can be used to shut down the equipment
beeing protected:
- Gases moving in the direction of the oil conservator trigger
the signaling system of the Buchholz relay.
- Shock waves created by the rapid gas development trigger
the signaling system of the Buchholz relay.
- The Buchholz relay also takes over the function of an oil level
indicator when there is not enough oil in the conservator or
when there is an oil leak.
It is available as two-fl oat Buchholz relay in different versions
for the nominal tube diameters DN25, DN50 and DN80.
• MBR25-6, MBR25-16 and MBR25-G (1 1/2“ threaded
connection)
• MBR50-6 and MBR50-16
• MBR80-6/4, MBR80-16/8 and MBR80-16/4
• MBR80-CH and MBR80-QU (square fl ange)
• Equipped with up to 4 normally open, normally closed
and/or changover contacts on customer request.
WARNING
This information indicates particular danger to life and
health. Disregarding such a warning can lead to serious or
fatal injury.
CAUTION
This information indicates particular danger to the
equipment or other property of the user. Serious or
fatal injury cannot be excluded.
NOTE
These notes give important information on a certain issue.
CAUTION
Installation, electrical connection, commissioning, and
maintenance of the device may only be carried out by
qualifi ed, skilled personnel and only in accordance with
these operating instructions.
It is the responsibility of the user to make sure that the
device is used for the specifi ed application only.
For safety reasons, any unauthorized and improperly
executed work, i.e. installation, modifi cation, alteration of
the equipment, electrical connection, or commissioning
of the equipment, are forbidden without fi rst consulting
Messko!
WARNING
All relevant fi re protection regulations and specifi cations
for handling toxic and fl ammable gases must be strictly
observed.
1 Safety
2 Product specifi cation