CAUTION
Nature of
Maintenance
Schedule/Frequency
Actions
Reference
Routine
Monthly
Check LED indication on P&C unit
7.1a
Quarterly
Self-diagnostic test of P&C unit
7.1b
Temperature check at termination
7.1c
Yearly
Open & Re-close the breaker
7.1d
Rack-out & Rack-in the breaker
7.1e
Inspect Arc Chutes for erosion
7.1f
Inspect Contacts for erosion
7.1g
Trip simulation of P&C unit
6.5
1 Year or 500 operations (whichever
is earlier)
Greasing of Operating Mechanism
7.1h
Specific
When P&C unit trips the breaker
Identify the fault & Reset P&C unit
7.1i
When any Electrical accessory
needs replacement
Replace the specific accessory
7.1j
When breaker clears a major fault
Inspect Arc Chutes for erosion & replace,
if required
7.1g
Inspect contacts for erosion & replace
7.1g & 7.1k
Main Contacts, if required
In case of an abnormal external
Inspect Jaw Contacts & replace, if required
7.1l
event, such as flashover in panel
Inspect Cradle Terminals and replace, if
required
7.1m
On completion of Electrical life
Replace all Arc Chutes
7.1f
Replace all Main Contacts
7.1k
7.1b Earth fault test of P&C unit(UW-MTX2.5/2.5G/3.5/3.5EC):
POWER ON
LED
7.1a Checking LED indication on P&C unit:
7.1 Maintenance Schedule & Operations:
7-1
Summary of Contents for U-POWER Omega UW-MTX 1.5G
Page 2: ......
Page 3: ......
Page 4: ......
Page 5: ......
Page 8: ......
Page 10: ......
Page 12: ...Microswitch...
Page 15: ......
Page 18: ......
Page 19: ......
Page 20: ......
Page 27: ......
Page 30: ...3 12 X X 100 150 mm X 100 150 mm X X 15 max...
Page 45: ...3 27 Termination Draw out Breakers THIS PAGE IS INTENTIONALLY LEFT BLANK...
Page 46: ...Termination Draw out Breakers 3 28 THIS PAGE IS INTENTIONALLY LEFT BLANK...
Page 71: ...3 53...
Page 83: ...4 1 4 1 Cradle Mounted Accessories...
Page 84: ...4 2...
Page 85: ...4 3...
Page 86: ...4 4...
Page 87: ...4 5...
Page 88: ...4 6...
Page 89: ...4 7...
Page 90: ...4 8 4 2 Breaker Mounted Accessories...
Page 92: ...4 10...
Page 93: ...4 11...
Page 94: ...4 12...
Page 95: ...4 13...
Page 97: ...Section 5 Protection Control units 5 1 Identification 5 2 Protection Characteristics...
Page 104: ...5 7 Protection Characteristics Overload I T for UW MTX1 0 2 0 1 1 10 100 1000 10000 10s...
Page 119: ...6 3 6 3 Testing Control circuit Interlocks if breaker is equipped with accessories...
Page 134: ......
Page 136: ...7 7...
Page 142: ...Section 8 Useful Hints...