GHIELMETTI GKV 10x30 621 AM EEaLDP 24VDC User manual

Tripping matrix
for
Generator Protection Systems
GKV 10x30 621 AM EEaLDP 2 VDC
Part. No. 674.115.420.30
Operation Manual
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Introduction
Thank you for choosing a GHIELMETTI
product.
We are convinced that your choice will
prove to be a wise and worthy decision for
any years to co e.
Your GHIELMETTI product has been
tested for perfor ance at the factory
according to the specifications given for
the syste in this anual. However,
before putting the device into operation
we kindly ask you to read this anual and
act according to the instructions given. All
infor ation given in this docu ent is pro-
perty of Ghiel etti AG. To the
knowledge of Ghiel etti AG there are no
errors in the anual. Should any errors be
discovered, please notify us. Ghiel etti
will under no circu stances accept
responsibility neither for errors in this
anual, nor consequences of such
errors.
Warranty
Ghiel etti warrants products for one year
fro date of purchase against defects in
aterials and work anship.
During the warranty period, Ghiel etti
will, at its option, either repair or
replace products that prove to be
defective.
The warranty does not cover any defects
caused by accident, isuse, neglect,
i proper or inadequate installation or
aintenance by buyer, buyer-supplied
software or interfacing, unauthorized o-
dification, operation outside of the envi-
ron ental specifications for the
product, or i proper site preparation or
aintenance.
Safety Considerations
General
This product and related docu entation ust
be reviewed for fa iliarization with safety
arkings and instructions before operation.
This product has been
designed and tested in accordance with inter-
national standards.
STOP
Safety Earth Ground
This is a Safety Class 1 product (a
protective earth ter inal is provided).
An uninterrupted safety earth ground ust be
provided fro the ain power source to the
product input wiring
ter inals, power cord, or supplied
power cord set.
Whenever it is likely that the protection has
been i paired, the product ust be ade in-
operative and secured against any unintended
operation.
Installation
Initial Inspections
Check the contents of the ship ent for co -
pleteness and possible transport
da age.
If the contents are inco plete or
da aged, contact Ghiel etti
i ediately to get the concerned parts repai-
red or
replaced.
Before Applying Power
Verify that the product is configured to atch
the available ain power source per the input
power configuration
instructions provided in this anual.
Servicing
Servicing, adjust ents, aintenance or repair
of this product ay be perfor ed by qualified
personnel only.
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Functional description
The tripping atrix GKV 10x30 21 AM
EEaLDP 24VDC is a co ponent of a
generator protection syste . The tripping
atrix provides a transparent, easily pro-
gra able facility for co bining output
co ands of the trip outputs of individu-
al protection devices with plant ite s
such as the circuit-
breakers, de-excitation etc. The atrix
was developed for arshalling tripping
co ands of large power stations. With
its help, the tripping sche atic can be
te porarily changed, e.g. in case of a ge-
nerator circuit-breaker revision. If the soft-
ware atrix
incorporated in each generator
protection unit is used for arshalling the
tripping co ands, the arshalling in
the protection units ust be changed for
this purpose.
The tripping atrix assigns the tripping
signals arriving at the atrix colu ns
(fro the solid-state protection relays) to
the freely progra able atrix lines to
which the tripping odules are con-
nected.
Mode of Operation
The tripping atrix GKV 10x30 21 AM
EEaLDP 24VDC has 30 colu ns (for 30
signals fro protection units) and 10 rows
(for 10 signals to tripping odules)
Each of the 30 colu n signals ay be
connected twice by tap connectors.
High reliability diode plugs (black hand-
le) are used for progra ing the atrix,
the reliability being attained by generous
over-rating with respect to forward current
and reverse voltage.
The diode plugs are inserted fro the
front and enable any vertical colu n (sig-
nals fro the protection relays) to be con-
nected to any horizontal line so that the
tripping signals can be trans itted to the
tripping odule.
Each column has a LED for indicating
tripping co ands. The display is stored.
Each additional incoming tripping com-
mand received additionally sets a group
e ory, which, can be used for re ote
signalling and switching a rack la p.
All signals remain stored even when the
tripping channels are interrupted or when
the red central connecting plug is re o-
ved.
The memories can be reset directly by a
push-button "Reset" or by re ote reset.
The function of all LED’s ay be
checked by pressing the "LED-Test"
button.
The power supply of the relays and e-
ory functions is 24VDC and feed an ad-
ditional 5 VDC voltage for the LED func-
tion. The onitoring of the power supply
is done by two relay contacts.
A lockable plexi-cover inhibits
unauthorised access to the progra ing
atrix.
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30 Input signals
from protection system
Programming matrix
Programming is done by Diode Pl gs
Type: GDS 621 ZS/20 sw
674.212.002.00
LED indicating incoming
switching signal
Acryl class cover
open to the right
10 Output signals
to the protection
switches
LED indicating o tgoing
switching p lse
LED-Test
To test if all LEDs work
Reset
Of all LEDs
Pin Park
2 rows by 430 pin parks
each
Diode Plug Test Unit
Type: GDS 621 ZS/20 sw
674.212.002.00
If the LEDs light after inserting into
the left position
and do not light after inserting in the
right position,
then the diode pl g is o.k.
Power ON indication LED
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30 input signal discontinuity
inter pt the inp t signal to the matrix
Inp t tap discontin ity
Inp t tap 1-30

Interconnecting the Tripping Matrix
Input screw mount connectors
max. 30 inp t signals
Output screw mount connectors
max. 10 o tp t signals
Auxiliary o tp t screw mo nt connectors
Input signal tap screw mount connectors
max. 30 inp t signals
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________ __________ ________ _________ ________ _______ _______
Chassis 0V +24 Reset +24 LED +24 +5VDC +5VDC Remote Rack
Ground VDC VDC VDC Power Power Signal Lamp
Monitoring Failure
Power Remote Remote
Supply Reset LED-Test
Auxiliary output screw mount connectors

Schematic diagram of the Tripping Matrix
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Front view
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Back view
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Side view
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Technical data
Voltage supply UH:+24 VDC
Range of voltage supply: +18 - 36 VDC
Superposed AC peak-to-peak voltage: 12% @ rated voltage 6% @ voltage li its
Power consu ption: 10 W ax.
Bridging period on auxiliary voltage failure: 50 s to UH 24 VDC
Display memory
Nu ber of indication e ories input 30
Nu ber of indication e ories output 10
Nu ber of group e ories 1
Indication delay ti e 5 s
Alarm contacts
Alar relays for „tripping co and dispatched” indication 2 NO contacts
Switching capacity ake/break 20 VA
Switching voltage 250 VAC/DC
Per ission current 0,1 A @ 250 VDC
Matrix
Nu ber of colu ns (inputs) 30
Nu ber of input discontinuity 30
Nu ber of input taps 30
Nu ber of input tap discontinuity 30
Nu ber of input indication LED 30
Nu ber of rows (outputs) 10
Nu ber of output indication LED 10
Diode plugs
Type GDS 621 ZS/20 sw (part. no. 674.212.002.00)
Max. reverse voltage 1000 V
Max. per issible current 1 A current flow direction fro colu n (+) to row (-)
Insulation
Specification: IEC 255-5
Max. voltage (input, output) 2,8 kV (eff.), 50 Hz
Max. over voltage 5 kV (peak), 1,2/50 µs, 0,5 J,
3 positive and 3 negative pulse within 5 sec. each
Climate conditions
Operation te perature -5 °C to +55 °C
Storage te perature -25 °C to +55 °C
Construction
Mechanical di ensions 19“, 6U W/H/D = 482,6 x 266.3 x 154,58
Weight: approx. 7 kg
Connectors
Cla p-connectors ax. wire section 2,5 ²
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