ISA CIRCUIT BREAKERS TEST SETS ISA INTERNATIONAL SYMPOSIUM 2008.

ISA ISA CIRCUIT CIRCUIT

BREAKERS TEST BREAKERS TEST SETSSETS

ISA INTERNATIONAL SYMPOSIUM 2008

CB TEST SETSCB TEST SETS

CBA 1000

CBA 2000

CBA 1000CBA 1000

2 breaks per phase

4 auxiliary digital inputs

Thermal printer

1 Transducer input

USB and RS232 Comm port

200 A µΩmeter

1 or 3 Open1 Close

Large Graphical display

Keypad

Knob control

1 HV input

CBA 2000CBA 2000

2/4/6 breaks per phase

4/8/12 auxiliary digital inputs

USB/RS232 and Flash memory

Minimum trip coil

Keypad

Control Knob

Large Graphical display

1 or 3 Open 1 Close command

2 HV analog inputs

200 A µΩmeter

3 Transducers inputs

Sync in/out

Relay output

5 Function keys

START and SEL

CB TEST SETSCB TEST SETSMAIN FUNCTIONS

• Open and Close coils drive • Main and auxiliary contact timing measurement• Open and Close coil current profiles• SRM and DRM tests• Travel and speed measurement• Other measurements: battery or motor voltage and current• Graphical display: no need of printer• Battery operated• Both Sides Grounded option

CB TEST SETSCB TEST SETSCBA 2000 PLUS WITH RESPECT TO CBA 1000

• 2/4/6 breaks per phase instead of 2;• 4/8/12 auxiliary inputs instead of 4;• Three transducers inputs instead of 1;• Two 500 V inputs instead of 1;• Five function keys;• USB memory drive;• One relay output contact;• Memory: 256 Mbyte instead of 128 Mbyte

COIL DRIVERS CHARACTERISTICSCOIL DRIVERS CHARACTERISTICSSTANDARD: 1 open - 1 close commandSTANDARD: 1 open - 1 close commandOPTIONAL: 3 open - 1 close commandOPTIONAL: 3 open - 1 close commandElectronic driver for superior timing control.Electronic driver for superior timing control.Driver: 300 V DC max; 25 A DC max.Driver: 300 V DC max; 25 A DC max.Operating time accuracy: 100 us.Operating time accuracy: 100 us.Coil current ranges: 2.5; 10; 25 ACoil current ranges: 2.5; 10; 25 AAccuracy: 0.5% of the rdg ± 0.1% of the range.Accuracy: 0.5% of the rdg ± 0.1% of the range.Connection: via safety sockets.Connection: via safety sockets.Outputs are isolated between them.Outputs are isolated between them.



Main and resistor contact inputsMain and resistor contact inputs2 breaks per phase std; up to 6 CBA20002 breaks per phase std; up to 6 CBA2000Isolated among themIsolated among themResistor range : 25 toResistor range : 25 to 10,000 10,000 ΩΩTest voltage: 24 V (50 mA max)Test voltage: 24 V (50 mA max)

Auxiliary inputsAuxiliary inputsGroups of 2 inputsGroups of 2 inputs4 std; up to 12 CBA20004 std; up to 12 CBA2000Dry / wet selectionDry / wet selectionWet voltage range: 20 to 300 VWet voltage range: 20 to 300 V


Sampling rateSampling rate ResolutionResolution Max recording timeMax recording time

20 kHz20 kHz 50 50 µsµs 1 s1 s

10 kHz10 kHz 100 100 µµss 2 s2 s

5 kHz5 kHz 200 200 µµss 2 s2 s

2 kHz2 kHz 500 500 µµss 10 s10 s

1 kHz1 kHz 1 ms1 ms 20 s20 s

500 Hz500 Hz 2 ms2 ms 40 s40 s

200 Hz200 Hz 5 ms5 ms 100 s100 s

100 Hz100 Hz 10 ms10 ms 1000 s1000 s

TIME MEASUREMENT CHARACTERISTICSTIME MEASUREMENT CHARACTERISTICS


ANALOG INPUTSANALOG INPUTS

2 or 4 for Coil Current measurements2 or 4 for Coil Current measurements

HV analog inputs: 5V, 50V, 500VHV analog inputs: 5V, 50V, 500V

Transducers inputsTransducers inputs: one: one, ± 5 V for , ± 5 V for CBA 1000; three, ± 10 V for CBA 2000CBA 1000; three, ± 10 V for CBA 2000

One for DRM and SRM measurementOne for DRM and SRM measurement

Analog Resolution: 16 bitAnalog Resolution: 16 bit

CB TEST SETSCB TEST SETSOpen and Close currents

Main contact and resistance time measurements

Auxiliary contact time measurement

Measuring cursors

Zooming

3 Travel Transducers

CB TEST SETSCB TEST SETS STATIC AND DYNAMIC CONTACT RESISTANCE TEST

• Embedded micro-Ohmmeter • 200 A pure DC current• 3 I Ranges: 200 A – 100 A – 20 A• R ranges: 200 uOhm – 1.000 mOhm– 10.00 mOhm – 100.0 mOhm• Static resistance test ( SRM )• Dynamic resistance test ( DRM )


DYNAMIC CONTACT RESISTANCE TEST: CLOSE


DYNAMIC CONTACT RESISTANCE TEST: OPEN


DYNAMIC CONTACT RESISTANCE TEST: REAL CASE

COIL CURRENT

VOLTAGE

TEST CURRENT

RESISTANCE

PROBLEM!

CB TEST SETSCB TEST SETS DIGITAL TRANSDUCERS

Operating principle: two traces, phase shifted

• Two digital inputs for one transducer

• One transducer: A3, A4; three transducers: also A7, A8, A11, A12

FORWARD

BACKWARD

CB TEST SETSCB TEST SETS DIGITAL TRANSDUCERS

• Transducer accuracy: impulses per turn

• BAUMER BDK 16.24K: 1024 impulses/turn

• Angular movement: 90°

• ►250 impulses to design the movement

• Movement in 30 ms

• ►Frequency = 8.3 kHz

• Two digital inputs for one transducer

CB TEST SETSCB TEST SETS FIRST TRIP TEST

• When the CB is opened to connect it to CBA, the friction is lost

• It is impossible to connect to CB main contacts before opening it

• Solution: sense the currents


CTCB

Circuit

OPEN COIL COMMAND

CBA

I Clamp

Transducerinputs

Busbar with voltage

I

500 V input


• Test result (one phase)

Analog 1

First tripdelay

• First trip: from coils command to I off

• The option requests three clip-on transformers

• CBA 2000 only

500 V 1

CB TEST SETSCB TEST SETS MAINS SYNCHRONIZATION

• Some CB’s open and close at the voltage zero crossing

• Request: check timing with respect to zero crossing

• Solution: sense the VT voltage


CB

CBA

HV 1 HV 2

uOhm

Divider

VT


• The VT voltage is sensed and displayed connecting it to an HV input

• If the three phases are requested, we will provide a divider for the micro-Ohm input (CBA 2000 only)


• Test result (one VT)

HV 1

A1

B1

C1

WINDOWS based softwareWINDOWS based software

Same TDMS software to handle CBA 1000 and Same TDMS software to handle CBA 1000 and CBA 2000 results as well as other ISA test CBA 2000 results as well as other ISA test equipments.equipments.

Same reporting structure.Same reporting structure.

Remote CB testing control.Remote CB testing control.

Create Create – Open – Save a test plan.– Open – Save a test plan.

CabaWin results compatible.CabaWin results compatible.


Create test planCreate test planCB TEST SETSCB TEST SETS

Set transducer testSet transducer testCB TEST SETSCB TEST SETS

Results analysisResults analysisCB TEST SETSCB TEST SETS

LAST, BUT NOT LEAST…LAST, BUT NOT LEAST…

CIRCUIT BREAKER SIMULATOR!CIRCUIT BREAKER SIMULATOR!


CIRCUIT BREAKER SIMULATORCIRCUIT BREAKER SIMULATOR

PERFORMANCES:PERFORMANCES:

ONE CLOSE AND THREE OPEN COMMANDSONE CLOSE AND THREE OPEN COMMANDS

TWO BREAKS PER PHASE; THREE PHASESTWO BREAKS PER PHASE; THREE PHASES

FOUR AUXILIARY CONTACTSFOUR AUXILIARY CONTACTS

MICROOHMETER STATIC RESISTANCE TESTMICROOHMETER STATIC RESISTANCE TEST

AND…AND…

TRAVEL TRANSDUCER SIMULATION!TRAVEL TRANSDUCER SIMULATION!

DYNAMIC RESISTANCE TEST!DYNAMIC RESISTANCE TEST!


CIRCUIT BREAKER SIMULATORCIRCUIT BREAKER SIMULATOR

COMPLETE SIMULATION OF COMPLETE SIMULATION OF CBA PERFORMANCES!CBA PERFORMANCES!


CIRCUIT BREAKER SIMULATORCIRCUIT BREAKER SIMULATORCB TEST SETSCB TEST SETS

MAIN

CONTACTS

AUX

CONTACTS

MICRO-OHM

CONNECTIONS

OPEN COMMANDS

TRANSD. OUTPUTS

ISA CIRCUIT BREAKERS TEST SETS ISA INTERNATIONAL SYMPOSIUM 2008.

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