
108
MNS
D
TR
/
MNS
S
e
rv
ic
e
K
o
n
ser
wacja
i cz
ęści
zami
en
n
e
M
ai
n
ten
a
n
ce
an
d
Sp
ar
e
Par
ts
5
Frequency
Install. category
Item
no.
Work to be performed
Measured, test and limit values, operating and auxiliary
materials
A
B
C
Remarks
Check electrical contacts
Main contact
Visual inspection
2a
1
1a
1
X
Refer to
Check of contact force
Chapter 5.5
Greasing
Refer to chapter 5.6
Control plug
Fastening of outgoing cable unit
Position; the outgoing cable unit might be pressed out of
its normal position by strong cable forces
Protective conductor connection
Condition of the roller in the compartment bottom plate
2.2
Plug-in, disconnectable, railable technique
Cf. also item no. 1.3:
General inspection
2.2.1
MCC’s and outgoing energy distribution feeders
2.2.2
Compensation modules with and without reactor
Check electrical equipment in every module
1a
6m
X
Check of contact gaps,
Visual inspection of main contacts X01
contact condition and
Condition of short-circuit protection
lubrication not neces-
sary
LV HRC fuse
Fuse continuity
Fuse tripped
Signs of overload by
mains
Circuit breaker
Contact condition
resonance in accord-
ance
Lubricate contact blades of LV HRC fuses
Klüberlectric KR44-102
with manufacturer´s
Check capacitor contactor
instructions
Check for contact corrosion
Contact condition
Switching performance
No humming, bouncing or chattering of reactor
Visual inspection of filter circuit reactor
Connections and windings
Condition
Capacitor
Setpoints see chapter 5.15
Use measuring log
Design without reactor: measure all step
currents
3-phase or capacitance values
Limit value: I
B
1,3 x I
n
according chapter 5.17
Design with reactor: measure the terminal
capacitance
Discharging device
Reactor
Residual voltage after 1 min
50 V
Resistor bank
Color change, missing elements
1
Main contact to be checked either according mentioned the time intervals or latest after 100 cycles.
Содержание MNS
Страница 1: ...MNS Rozdzielnica niskiego napięcia Dokumentacja Techniczno Ruchowa Service Manual ...
Страница 116: ......