Safety; Product Description - COMEM eSDB-10C Bedienungsanleitung

Safety

Safety instructions
Make sure that any person installing, taking into operation
and operating the self-dehydrating breather:
• is technically qualified and competent
• fully complies with these assembling instructions
Improper operations or misuse could cause danger to:
• life and limb
• the equipment and other assets of the operator
• the equipment proper function
Safety instructions in this manual are shown in three
different forms to emphasize important information.
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 equipment or
other property of the user. Serious or fatal injury cannot be
excluded.
This notes give important or specific information concerning the
equipment or as to work with the equipment.
Safety notes on the equipment operation
Electrical installation is subject to the relevant national
safety rules.
It is mandatory to connect the grounding cable.
CAUTION
During the regeneration phase, the surface temperature
increases. Touching the surface is dangerous.
CAUTION
Installation, electrical connection and fitting the device may only
be performed by qualified personnel and only in accordance
with this instruction manual. It is the responsibility of the user
to ensure that the device is used for specified application only.
For safety reasons, please avoid any unauthorized and improper
usage.
WARNING
All relevant fire protection regulation must be strictly observed.
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NOTE
SELF-DEHYDRATING BREATHERS eSDB-10C/12C/14C

Product description

The dehydrating breather is used for oil-insulated tran-
sformer and on-load tap-changer to dry the air which is
suctioned in by the oil conservator during the thermal
contraction of the oil mass.
It is important to observe the limit values indicated on
the nameplate and in the operating instruction before
ai16208273657_ne-359.pdf 1 12/05/2021 15:49:25
commissioning the device.
1 2
A
B
C
D
E
ESDB14C
Figure 1
During the normal operation the oil conservator intakes air
F
that passes through the metallic filter.
The metallic filter stops dust, sand and other particles
1 2
from the contaminating air.
The air then passes through the salt tank 1 (Fig.14-15/1).
The tank is filled with silica gel that absorbs the moisture.
The dehydrated air goes through piping to the oil
conservator.
After a pre-determinate time (settable) a solenoid
valve blocks the passage of air through tank 1 and
deviates through the "plenum chamber" 2 (Fig.14-15/2)
(for eSDB10C it deviates the air through the main
self-dehydrating breather eSDB15, eSDB30, eSDB40 or
eSDB14C). At the same time, a heating system inside tank
1 is activated. The water vapor leaving the silica gel is
expelled outward by a fan that also dissipates the heat.
After the salt regeneration in tank 1, the solenoid valve is
de-energized and the air flow through tank 2 is inhibited.
The salt in this tank (2) is also dehydrated, regeneration of
the salt in tank 2 follows automatically (not for eSDB10C).
No maintenance is required for replacement and
regeneration of the desiccant.
WARNING
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CREATED BY
Diego Boro
APPROVED ON
-
COMPANY
COMEM
RESPONSIBLE DEPARTMENT
ITABB-9AAE306693
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ESDB10C
REVIEWED BY APPROVED BY
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DOCUMENT KIND BASED ON DOC ID WORK ORDER ID PRO
Component Drawing
TITLE / SUPPLEMENTARY TITLE
CONNECTION ESDB10C
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DOCUMENT ID STATUS REV
NE-359
A
Development
© COPYRIGHT ALL RIGHTS RESERVED
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DRAWING SHEET ISO 5457: 19
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