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2. TECHNICAL SPECIFICATIONS
Each of the systems may include the following functions:
Basic model ....... DIFFERENTIAL PROTECTION
Option 1 ............. OVERCURRENT TRIPPING SUPERVISION
Option 2 ............. BREAKER FAILURE (Several steps logic available upon request)
Option 3 ............. TEST UNIT
System packaging options:
A ........................ Board mounted standard racks
D ........................ Complete cabinets
2.2.
MECHANICAL
•
Mechanical packing in a 19" inch 4 units high stainless steel box.
•
IP51 Grade Protection (IP55 housed in a cabinet).
•
Rear connection by means of 16 strips of 8 terminals or 16 strips of 12 terminals. Stair layout of
the terminal blocks if mounted in a cabinet.
•
Dimensions:
Rack: 484 mm x 179 mm x 349 mm.
Cabinet: 800 mm x 800 mm x 2000 mm (Pedestal: 750x800x100 mm).
•
Ambient humidity: up to 95 without condensing.
•
Temperature:
Operation:
Storage:
2.3.
ELECTRICAL
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Frequency:
•
Auxiliary voltage:
•
Operation ranges:
•
Nominal current:
•
Thermal capacity current circuits:
Input circuits:
Continuously................................................... 2 x In
For three seconds ........................................ 50 x In
For one second ...........................................100 x In
Total current going through the bar:
Continuously..................................................20 x In
•
Thermal capacity for voltage circuits:
Continuous: ..................................................... 2.5x Vn
During 1min: ...................................................... 3.5xVn
•
Loads:
Current: 15VA (depending on the tap of the auxiliary transformer used)
Voltage: 0.2 VA at Vn= 63 V
2-2
-20º to + 55º C
-40º to + 65º C
50/60Hz
110 Vdc or 125 Vdc or 220 Vdc
80%to 120% of nominal values
1 amp
BUS1000 Busbar Protection
GEK-98514B
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