Ghielmetti Gkv 20x45 621 am eldp User manual

Tripping Matrix

for

Generator Protection Systems

GKV 20x45 621 AM ELDP

Part. no.: 674.115.420.20

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 many years to come.

Your GHIELMETTI product has been

tested for performance at the factory

according to the specifications given for

the system in this manual. However,

before putting the device into operation

we kindly ask you to read this manual

and act according to the instructions gi-

ven. All information given in this docu-

ment is property of Ghielmetti AG. To

the

knowledge of Ghielmetti AG there are no

errors in the manual. Should any errors

be discovered, please notify us. Ghiel-

metti will under no circumstances accept

responsibility neither for errors in this

manual, nor consequences of such

errors.

Warranty

Ghielmetti warrants products for one

year from date of purchase against de-

fects in materials and workmanship.

During the warranty period, Ghielmetti

will, at its option, either repair or

replace products that prove to be

defective.

The warranty does not cover any defects

caused by accident, misuse, neglect,

improper or inadequate installation or

maintenance by buyer, buyer-supplied

software or interfacing, unauthorized

modification, operation outside of the

environmental specifications for the

product, or improper site preparation or

maintenance.

Safety Considerations

General

This product and related documentation

must be reviewed for familiarization with

safety markings and instructions before

operation. This product has been

designed and tested in accordance with

international standards.

STOP

Safety Earth Ground

This is a Safety Class 1 product (a

protective earth terminal is provided).

An uninterrupted safety earth ground

must be provided from the main power

source to the product input wiring

terminals, power cord, or supplied

power cord set.

Whenever it is likely that the protection

has been impaired, the product must be

made inoperative and secured against

any unintended operation.

Installation

Initial Inspections

Check the contents of the shipment for

completeness and possible transport

damage.

If the contents are incomplete or

damaged, contact Ghielmetti

immediately to get the concerned parts

repaired or

replaced.

Before Applying Power

Verify that the product is configured to

match the available main power source

per the input power configuration

instructions provided in this manual.

Servicing

Servicing, adjustments, maintenance or

repair of this product may be performed

by qualified personnel only.

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Functional description

The tripping matrix GKV 20x45 621

AM ELDP is a component of a

generator protection system. The

tripping matrix provides a transparent,

easily programmable facility for

combining output commands of the trip

outputs of individual protection devices

with plant items such as the circuit-

breakers, de-excitation etc. The matrix

was developed for marshalling tripping

commands of large power stations.

With its help, the tripping schematic

can be temporarily changed, e.g. in

case of a generator circuit-breaker

revision. If the software matrix

incorporated in each generator

protection unit is used for marshalling

the tripping commands, the marshalling

in the protection units must be changed

for this purpose.

The tripping matrix assigns the tripping

signals arriving at the matrix columns

to the freely programmable matrix lines

to which the tripping modules are

connected.

Mode of Operation

The tripping matrix GKV 20x45 621

AM ELDP has 45 columns (for 45

signals from protection units) and 20

rows (for 20 signals to tripping modu-

les)

All input signals may be separated from

the Matrix by a discontinuity

connector (red).

High reliable diode plugs (black

handle) are used for programming the

matrix, the reliability being attained by

generous over-rating with respect to

forward current and reverse voltage.

Diode Plugs may be checked by a Dio-

de Plug Test Unit "D".

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.

Unused diode and connecting plugs are

stored in a pin park.

Each column has a LED for indicating

incoming tripping commands.

The display is stored "L".

Each row has a LED for indicating

outcoing tripping commands.

The display is stored "L".

Each outgoing tripping command re-

ceived additionally sets a group memo-

ry, which can be used for remote sig-

nalling 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 memory

functions is 220VDC and feed an additi-

onal 5 VDC voltage for the LED function.

The monitoring of the power supply is

done by two relay contacts.

A lockable plexi-cover inhibits

unauthorised access to the program-

ming matrix "P".

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45 Input tripping signals

from protection system Connecting matrix

Connecting of Input to Output Signal is done by

Diode Plugs.

Type: GDS 621 ZS/20 sw

674.212.002.00

LED red

indicating incoming

tripping signal

Acryl class cover

open to the right

20 Output signals

to the protection

switches

LED indicating outgoing

switching pulse LED-Test

To test if all LEDs work

Reset

Of all LEDs

Pin Park

2 rows by 45 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 plug is o.k.

Power ON indication LED

green

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Connecting and Diode plugs

Control elements of the Tripping Matrix

60 Output discontinuities with connecting plugs red

Type: GSS 621/15 rt

674.310.180.02

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Interconnecting the Tripping Matrix

Input screw mount connectors

max. 45 input signals

Output screw mount connectors

max. 20 output signals

Auxiliary output screw mount connectors

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Installation and interconnecting

Caution: This unit will be in operation under 250 VDC.

Installation and interconnecting have to be made only by

qualified personel.

________ __________ ________ _________ ________ _______ _______

Chassis 0V +220 Reset +220 LED +220 +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

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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:+220 VDC

Range of voltage supply: +176 to 264 VDC

Superposed AC peak-to-peak voltage: 12% @ rated voltage 6% @ voltage limits

Power consumption: 10 W max.

Bridging period on auxiliary voltage failure: 50ms to UH 250 VDC

Display memory

Number of indication memories input 45

Number of indication memories output 20

Number of group memories 1

Indication delay time 5 ms

Alarm contacts

Alarm relays for „tripping command dispatched” indication 2 NO contacts

Switching capacity make/break, max 20 VA

Switching voltage,max. 250 VAC/DC

Permission current 0,1 A @ 250 VDC

Matrix

Number of columns (inputs) 45

Number of input discontinuity 45

Number of input indication LED 45

Number of rows (outputs) 20

Number of output indication LED 20

Diode plugs

Type GDS 621 ZS/20 sw (part. no. 674.212.002.00)

Max. reverse voltage 1000 V

Max. permissible current 1 A current flow direction from column (+) 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

Construction

Mechanical dimensions 19“, 6U, W/H/D = 482,6 x 266.3 x 154,58 mm

Weight: approx. 7 kg

Connectors

Clamp-connectors max. wire section 2,5 mm²

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Electrical Tests

Isolation tests

Standards IEC 255-5

Voltage test (all circuits without auxiliary supply) 2 kV (eff), 50 Hz

Voltage test (auxiliary supply) 2.8 kV-

Surge voltage (Type test) 5 kVpp; 1,2/50 us;0,5 J

3 positive and 3 negaitve surges within 5 sec.

EMC-Test, interference resistance (Type test)

Standards IEC 255-6; IEC 255-22; EN 50082-2

High frequency test 2,5 kVpp; 1 MHz; t=15us;400 surges/sec

IEC 255-22-1, class III

VDE 0435 part 303, class III

Electrostatic discharge 4 kV/6 kV contact discharge, 8kV air discharge

IEC 255-22-2, class III

IEC 1000-4-2, class III

Irradiation High frequency field, unmodulated 10 V/m; 27 MHz to 500 MHz

IEC 255-22-3, class III

Irradiation High frequency field, amplitude-modulated 10 V/m; 80 MHz to 1000 MHz; 80% AM; 1 kHz

IEC 1000-4-3, class III

Irradiation High frequency field, pulse-modulated 10 V/m; 900 MHz; repetition rate 200 Hz

IEC 1000-4-3, class III

Fast transient bursts 2 kV; 5/50 ns; 5 kHz; burst 15 ms

IEC 255-22-4 repetition rate 300 ms, both polarities

IEC 1000-4-4, class III Ri = 50 Ohm; test-duration 1 min.

Conducted emission high frequency 10 V; 150 kHz to 80 MHz; 80 % AM; 1 kHz

IEC 1000-4-6, class III

Magnet field with energy-technical frequency 30 A/m; constantly; 300A during 3 sec.; 50 Hz

IEC 1000-4-8, class IV 0,5 mT; 50 Hz

IEC 255-6

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EMC interference resistance, (Type test)

Standards EN 50081 (generic standard)

Conductes emission radio interference voltage (auxiliary supply) 150 kHz to 30 Mhz

CICPR 22, EN 5502, limit value class B

Radio field strenght 30 Mhz to 1000 MHz

CICPR 11, EN 55011, limit value class B

Mechanical tests

Vibration stress and shock loading steady state

Standards IEC 255-21, IEC 68-2

Vibration sinusoidal

IEC 255-21-1, class I 10 Hz to 60 Hz: ± 0,035 mm amplitude

IEC 68-2-6 60 Hz to 150 Hz: 0,5 g acceleration

frequency sweep 1 octave/min.

20 cycles in the 3 axes vertical

Shock half-sinusoidal

IEC 255-21-2, class I acceleration 5 g, during 11 ms,

3 shocks in both directions of the 3 axes each

Vibration with earthquake sinusoidal

IEC 255-21-3, class I 1 Hz to 8 Hz: ± 3,5 mm amplitude (hor. axis)

IEC 68-3-3 1 Hz to 8 Hz: ± 1,5 mm amplitude (vert. axis)

8 Hz to 35 Hz: 1 g acceleration (hor. axis)

8 Hz to 35 Hz: 0,5 g acceleration (vert. axis)

frequency sweep 1 octave/min

1 cycle in the 3 axes vertical

Vibration stress and shock loading on transportation

Standards IEC 255-21, IEC 68-2

Vibration sinusoidal

IEC 255-21-1, class II 5 Hz to 8 Hz: ± 7,5 mm amplitude

IEC 68-2-6 8 Hz to 150 Hz: 2 g acceleration

frequency sweep 1 octave/min.

20 cycles in the 3 axes vertical

Shock half-sinusoidal

IEC 255-21-2, class I acceleration 15 g, during 11 ms,

IEC 68-2-27 3 shocks in both directions of the 3 axes each

Continuous shock half-sinusoidal

IEC 255-21-2, class I acceleration 10 g, during 16 ms,

IEC 68-2-27 1000 shocks in both directions of the 3 axes

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Climate conditions

Allowed ambient temperature at operation -5°C to +55°C

Allowed ambient temperature at warehousing -25°C to +55°C

Allowed ambient temperature at trasportation -25°C to +70°C

Warehousing and transportation at factory-made packaging!

Allowed humidity conditions annual mean less 75% relative humidity

up to 30 days a year max. 95% relative humidity

bedewing unaccepable

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GHIELMETTI GKV 20x45 621 AM ELDP User manual

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