Hv Hrc Fuse Assembly - Siemens 8DJH Installation And Operating Instructions Manual
Medium-voltage switchgear
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Also See for 8DJH:
- Installation and operating instructions manual (129 pages) ,
- Operator's manual (2 pages) ,
- Installation and operating instructions manual (121 pages)
Table of Contents
Tab. 3: Availability of the mechanical interlocks
Mechanical interlock
Separate actuating openings
Cable compartment interlock
Locking device
Closing lockout
De-earthing lockout
Operating lever inserted
Interlocking between circuit-breaker
and three-position disconnector
3.7 HV HRC fuse assembly
500-8384.9 • Version 11 • Installation and Operating Instructions • 8DJH
▪ Operating lever inserted:
When the operating lever is inserted, the stored-energy mechanism and the circuit-breaker
operating mechanism cannot be activated or deactivated.
▪ Interlocking between circuit-breaker and three-position disconnector:
–
Circuit-breaker in OPEN position:
The three-position disconnector can be closed and opened. As soon as one of the
actuating openings of the three-position disconnector is opened, the circuit-breaker
cannot be operated anymore.
–
Circuit-breaker in CLOSED position:
No switching operations are possible with the three-position disconnector.
R
T
X
X
X
X
O
X
O
–
–
X
–
X
–
–
X Standard
Electrical interlocking
On the customer's request, different electrical interlocks can be installed.
Features of the HV HRC fuse assembly:
▪ With fuse slide for fuse replacement without tools
▪ HV HRC fuse-links according to DIN 43625 (main dimensions) with striker in "medium"
version according to IEC/EN 60282-1
–
as short-circuit protection before transformers
–
with selectivity to upstream and downstream connected equipment
–
1-pole insulated
▪ Reference dimension e of the fuse-links
–
U
= 12 kV: e = 292 mm (optionally e = 442 mm)
r
–
U
= 24 kV: e = 442 mm
r
▪ Requirements according to IEC 62271-105 / VDE 0671-105 met for HV HRC fuse-links in
combination with the three-position switch-disconnector
▪ Thermal striker tripping when the corresponding HV HRC fuse-link is used
▪ Climate-independent and maintenance-free, with fuse boxes made of cast resin
▪ Arrangement of fuse assembly below the switching-device vessel
▪ Fuse assembly connected to the three-position switch-disconnector via welded-in bushings
and connecting bars
▪ Fuse replacement is only possible when the feeder is earthed
▪ Option for HV HRC fuse-links: "Tripped" indication for remote electrical indication with a
NO contact
Panel type
L
K
K(E)/E
M(430) M(500) M(840)
X
–
–
X
X
–
X
X
X
–
O
X
O
–
–
–
O
–
O
X
X
–
–
X
X
–
–
–
O Option
Description | 3
S
H
X
–
X
X
X
–
X
X
O
–
O
X
O
–
X
–
–
–
–
X
–
–
–
X
–
–
–
–
– Not available
V
X
X
X
O
O
X
X
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