rozdzielnice dwujęzyczne

108 MNS DTR / MNS Service
Item
no.
Work to be performed
Measured, test and limit values, operating and auxiliary
materials
Frequency
Install. category
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 necessary
− LV HRC fuse • Fuse continuity
• Fuse tripped Signs of overload by
mains
− Circuit breaker • Contact condition resonance in accordance
• 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 • Limit value: I B ≤ 1,3 x I n according chapter 5.17
currents
3-phase or capacitance values
− 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.
Konserwacja i czci zamienne Maintenance
and Spare Parts 5