Technical data | 4
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500-8384.9 • Version 11 • Installation and Operating Instructions • 8DJH
▪
C.t.-operated release (‑Y6)
The low-energy c.t.-operated release
3AX1104
is used for protection devices with a pulse
output, which are supplied with c.t. current. The tripping circuit is supplied as well through
the protection core of the current transformer. When a pulse of 0.1 Ws runs through the
tripping circuit, the opening operation takes place.
▪
Low-energy release (‑Y6)
The low-energy release (-Y6) is provided for use in combination with the transformer
monitor IKI-30 (make Kries) or the protection device 7SJ45 (make Siemens) supplied with
c.t. current. The tripping circuit is supplied through the current sensor or current
transformer. When a pulse of 0.02 Ws runs through the tripping circuit, the opening
operation takes place. The low-energy release is available for the vacuum circuit-breaker
type 2.
Varistor module
The varistor module limits switching overvoltages caused by tripping coils in circuits and
auxiliary circuits.
The varistor module is integrated in the releases.
Circuit-breaker tripping signal
When the circuit-breaker is tripped by a release (e.g. by protection tripping), there is a signal
through the NO contact -S6.
If the circuit-breaker is tripped deliberately with the mechanical pushbutton, this signal is
suppressed by the NC contact -S7.
Tab. 27:
Power consumption of the releases
Release
Power consumption [W/VA]
Circuit-breaker type 1.1
Circuit-breaker type 2
Closing solenoid (‑Y9)
≤ 440
≤ 370
Shunt release (‑Y1)
≤ 440
≤ 370
Shunt release (‑Y2)
≤ 60 W
≤ 100 VA
—
C.t.-operated release (‑Y4)
≤ 20
—
C.t.-operated release (‑Y6)
≤ 20
≤ 30
Low-energy release (‑Y6)
—
≤ 10
Undervoltage release (‑Y7)
≤ 20
≤ 20
4.5 Current and voltage transformers
The technical data of the current transformers and the voltage transformers is given in the
associated order documents.
4.6 Classification of the switchgear
The switchgear is classified according to IEC/EN 62271-200 / VDE 0671-200.
Partition class: PM (metallic partition)
Tab. 28:
Loss of service continuity category
Panel
Loss of service continuity category
with
▪ Three-position disconnector
▪ Three-position switch-disconnector
LSC 2
without
LSC 1
Tab. 29:
Accessibility to compartments
Compartment (enclosure)
Accessibility
Busbar compartment
Non-accessible
Switching-device compartment
Non-accessible
Low-voltage compartment (option)
Tool-based
Connection compartment for panel
With earthing switch
Interlock-controlled
Cable feeder (K)
Tool-based
Metering panel type M, air-insulated Tool-based
Содержание 8DJH
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