GHIELMETTI AG |
www.ghielmetti.ch | [email protected] | 02/2017
3
Mode of Operation
The tripping matrix GKV 20x60 621 AM EALDP has 60 col-
umns (for 60 signals from protection units) and 20 rows (for
20 signals to tripping modules)
High reliability diode plugs (black handle) are used for pro-
gramming the matrix, the reliability being attained by gen-
erous over-rating with respect to forward current and re-
verse voltage.
The diode plugs are inserted from the front and enable any
vertical column (signals from the protection relays) to be
connected to any horizontal line so that the tripping signals
can be transmitted to the tripping module.
Withdrawing a central red connecting plug can disconnect
all tripping channels of a column. Each input tripping signal
may be connected to a parallel tap by inserting a red con-
necting plug.
Each column has a LED for indicating tripping commands.
The display is stored.
Each additional incoming tripping command received addi-
tionally sets a group memory, which, can be used for remote
signalling and switching a rack lamp.
All signals remain stored even when the tripping channels
are interrupted or when the red central connecting plug is
removed.
The memories can be reset directly by a push-button
"Reset" or by remote reset.
The function of all LED’s may be checked by pressing the
"LED-Test" button.
The power supply of the relays and memory functions is
250VDC and feed an additional 5 VDC voltage for the LED
function. The monitoring of the power supply is done by two
relay contacts.
A lockable acryl-cover inhibits unauthorised access to the
programming matrix.
Unused diodes and connecting plugs are stored in a pin
park.
Input discontinuity
By plugging in a connecting plug the
input signal is connected to the
Pro-
gramming Matrix
Connecting Plug:
Type:
GSS 621/15 rt
674.310.180.02
60 Input signals
from protection system
LED indicating incoming switch-
ing pulse
20 Output signals
LED indicating outgoing
switching pulse
Programming matrix
Programming is done by Diode Plugs:
Type:
GDS 621 ZS/20 sw
674.212.002.00
Pin Park
2 rows by 60
pin parks each
Reset
Of all LEDs
LED-Test
To test if all
LEDs work
Power ON
indication LED
Diode Plug Test Unit
Type: GDS 621 ZS/20 sw
674.212.002.00
If the LEDs ligh after inserting
into the left position
and do not ligh after inserting in
the right position,
then the diode plug is o.k.
Acryl class cover
open to the right
20 Output discontinuities
GSS 621/15 rt
674.310.180.02
Содержание GKV 20x60 621 AM ELDP
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