Elcon SA5A Manuale utente

2018-04-20

SWITCH ANALYSER SA5A

USER MANUAL

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Rev 0 2018-04-20 www.elcon.se

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INDEX

INDEX ........................................................................................................................................................................................2

1. GENERAL DESCRIPTION.........................................................................................................................................................3

2. SAFETY REGULATIONS ..........................................................................................................................................................4

2.1. General safety regulations ............................................................................................................................................4

2.2 Power supply and protective grounding ........................................................................................................................5

3. Connections ..........................................................................................................................................................................5

3.1 Connections for time measurement ..............................................................................................................................5

3.1.1 Safety regulations ...................................................................................................................................................5

3.1.2 Principals for connections to SA5A .........................................................................................................................5

3.1.3 Connections for one breaking unit per phase.........................................................................................................6

3.1.4 Connections for two or more breaking units per phase .........................................................................................6

3.2 Connection of the breaker operating mechanism .........................................................................................................7

3.2.1 Safety regulations ...................................................................................................................................................7

3.2.2 Connection of operating coils .................................................................................................................................7

3.2.3 Connection of motor...............................................................................................................................................7

3.3 Connection of transducers .............................................................................................................................................8

3.4 Connection of a PC .........................................................................................................................................................8

4. OPERATING INSTRUCTION FOR USING SA5A STAND ALONE................................................................................................9

4.1 Before operation ............................................................................................................................................................9

4.2 Standalone operation of SA5A .......................................................................................................................................9

5 Technical Specification. .......................................................................................................................................................10

6.0 MAINTENANCE..................................................................................................................................................................13

6.1 Before use. ...................................................................................................................................................................13

6.2 After use. ......................................................................................................................................................................13

6.3 Storing the SA5A...........................................................................................................................................................13

6.4 Every year or when necessary......................................................................................................................................13

6.7 Upgrading SA5A internal software. ..............................................................................................................................13

6.8 SA5A PROGRAM LOADER in display. ............................................................................................................................14

7.0 ADJUSTMENTS ..................................................................................................................................................................16

7.1 Instrument needed.......................................................................................................................................................16

7.2 General .........................................................................................................................................................................16

7.3 General calibration procedure .....................................................................................................................................17

7.3.1 Calibration wizard for Voltage measurement on analogue inputs: ......................................................................18

7.3.2 Calibration wizard for Current measurement on analogue inputs: ......................................................................20

7.3.3 Calibration wizard of analogue transducer input: ................................................................................................22

8 Transportation/SCRAPPING/Recycling. ...............................................................................................................................24

9 SA5A Accessories. ................................................................................................................................................................24

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1. GENERAL DESCRIPTION

The is a portable instrument, especially designed to analyze Circuit Breakers in the field.

Even though is intended for use together with a computer, it can be used stand-alone for some simpler

measurements. To be handy in field works, the is built into a small and robust metal carry case. On the cover

section of the carry case, a notebook computer can be placed while testing.

The measurements that can be made without a Windows computer are: voltage and current for both motor and coils,

time for three independent contacts in, open, close and close-open operations and static resistance of main contacts.

Contact time measurements.

There are three main and three auxiliary contact indication inputs. Main contact max output 30 mA during operations and

can also indicate pre-insertion resistors simultaneously. Auxiliary contact inputs can handle both free and live contacts. All

contact inputs are of type semi protected banana-jacks and are protected against faulty connections and high voltage

discharges.

Travel transducer.

One, digital or analogue, travel transducer, can be used for measurement.

Operating coil control.

With an external power supply connected through this section the operating coils can be fully controlled. The current flow

through the coils and the supply voltage are measured.

Motor monitoring.

In the Auxiliary section there is provisions to monitor current and voltage from an external motor supply.

Internal sampling.

Sampling frequency for analogue and digital functions can be programmed for frequencies up to 50 kHz. Note! The PC-

software sets the sampling frequency.

Power supply

The SA5A must powered with an external AC- or DC- power supply.

Environmental

SA5A is built in a small metal carry case designed for rough handling in tough outdoor environments. All connections are

protected for any possible type of electrical discharges and disturbances. Some of the inputs are even protected against

faulty connections up to 300V peak.

PC-Computer

In most cases a standard windows notebook computer can be used but for tougher environments an outdoor type is

recommended. For recommended minimum requirements for the notebook computer. See BTS11 User manual

PC-software

See separate manual BTS11 User manual for more information.

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2. SAFETY REGULATIONS

Important!

This instrument shall only be used by authorized and educated personnel.

It is the operator’s responsibility to read and follow all operating and safety instructions for connecting and using this

instrument.

Always keep the below safety instructions in mind when using the instrument.

2.1. GENERAL SAFETY REGULATIONS

•Local safety regulations.

Always follow local safety regulations for work on high-voltage circuit breakers.

•Ground connection.

Always connect the separate ground terminal (green/yellow) on SA5A to protective ground before any other

connections.

The SA5A unit can only be used in electrical system with a single ground.

If there is a High voltage ground and Low voltage ground make sure that there is no potential voltages

difference between these grounds. If a voltages difference exists between grounds, consult local safety

regulations.

Check that the separate protective ground wire is in good condition before connection.

Make sure that the power socket for mains is a grounded outlet and that the power cable is in good

condition before connected the main power to the control unit SA5A.

•Connections.

Before connecting the SA5A to a high-voltage circuit breaker, make sure that the breaker poles are in

position CLOSE, and disconnected from the power line at both sides. The breaker must also be grounded on

at least one side.

Follow local safety regulations for work on high-voltage circuit breakers.

To avoid unintentional breaker operation!

Never do any work on a circuit breaker unless the control circuits of the breaker are disconnected from the

SA5A control outputs or from any other remote control device.

All cables shall first be connected to the SA5A before any connections to the test object.

Use of touch-protected connectors is required for personal safety.

Only use original cables for connection and make sure that the cables are in good conditions.

When the SA5A is connected to a wall socket, the socket must be a grounded power outlet.

Note! The inputs for coils “Uc” and motor “Um” are not fused!

Make sure that the output powers to these inputs are fused with maximum 32A.

Take care when working near bare connectors and bus bars. Contact with a conductor may cause an

electrical shock. Take special care at wet conditions.

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•Testing the circuit breaker

Make sure that surrounding personal can’t touch the breaker during an operation.

If a test sequence shall be running in automatic mode it’s absolutely necessary to have a security circuit that

prevent surrounding personal to touch the test object during the sequence.

The power supplies for coils and motor must be interlocked to a security circuit that cut the power if the

security circuit is open.

2.2 POWER SUPPLY AND PROTECTIVE GROUNDIN G

The SA5A can be powered from any AC or DC source, 100-250 V.

When the SA5A is connected to a wall socket, the socket must be a grounded power outlet.

IMPORTANT!

The SA5A have a separate grounding terminal (green/yellow) that must be grounded to the nearest protective earth

(ground) with a separate wire.

3. CONNECTIONS

3.1 CONNECTIONS FOR TIME MEAS UREMENT

3.1.1 SAFETY REGULATIONS

Important!

When only one side of the breaker is connected to earth (ground), special precautions must be observed. To protect

service personnel and the measuring equipment from surges, two important rules must be followed closely.

•The SA5A case must be earthed (grounded).

•All circuit breaker connections and disconnection’s must be made while the breaker poles are closed and

connected to earth (ground) on least one side.

•To avoid unintentional breaker operation! Never do any work on a circuit breaker unless the control circuits of

the breaker are disconnected from the SA5A control outputs.

•Use of touch-protected connectors.

3.1.2 PRINCIPALS FOR CONNECTIONS TO SA5A

To get a useful protocol and to fit to the PC-software it is necessary to connect contacts in a certain way:

•Use contacts "A" - "C" for main contacts.

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•Use contacts "a" - "c" for connection of auxiliary contacts (live or free)

Note!

Do not exceed the input voltage limit of 250 V AC or 400 V DC.

3.1.3 CONNECTIONS FOR ONE BREAKING UNIT PER PHASE

Figure 2.1 Connections for a one breaking unit per phase

3.1.4 CONNECTIONS FOR TWO OR MORE BREAKING UNITS PER PHASE

Note! Only one phase with 2 breaking elements is shown

Figure 2.2 Connections for two breaking units per phase

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3.2 CONNECTION OF THE BREAKER OPERATING MECHANISM

3.2.1 SAFETY REGULATIONS

Important!

•The SA5A case must be grounded.

•Warning! Do not short-circuit or touch the auxiliary voltage.

Use of touch-protected connectors is required for personal safety.

•The inputs for coils “Uc” and motor “Um” are not fused!

Make sure that the powers to these inputs are pre-fused with maximum 32A.

•Never do any work on a circuit breaker unless the control circuits of the breaker are disconnected from the SA5A

control outputs. (avoiding unintentional breaker operations)

Note!

The white 4 mm panel socket "ISOL" is an isolated connection that can be used to disconnect the control circuits of the

breaker.

3.2.2 CONNECTION OF OPERATING COILS

See figure 2.6

•Connect the coil voltage to the inputs "Uc" and "COM".

Connection to COM is optional and is only used for monitoring the voltage.

•Connect the positive connection of the closing coil and the positive connection of the opening coil to the outputs

CLOSE and OPEN.

•Connect the negative connections of the operating coils to the negative connection of the coil voltage.

3.2.3 CONNECTION OF MOTOR

See figure 2.6

•Connect the auxiliary voltage to the inputs "Um" and "COM"

•Connect the motor connections to the output "MOTOR" and to the negative connection of the auxiliary voltage.

Note!

The connection of the motor circuit is optional and is only necessary for monitoring the voltage and current

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Coil

Voltage

Motor

Voltage

Motor

Close Coil

Open Coil

Coil interlocking

Figure 2.6 Connection of the breaker operating mechanism

3.3 CONNECTION OF TRANSDUCERS

One pulse- or analog transducers can be connected to the input "T1".

The connection must be done with a special cable connector:

Connector: LEMO FGG.2K.308.CLCK90

Pin Description for a digital pulse transducer.

1 Pulse 1.

2 Pulse 1 inverted.

3 Pulse 2.

4 Pulse 2 inverted

5 +5 VDC

6 Ground.

Pin Description for an analog transducer

5 +5 VDC

6 Ground

7 Analogue measurement (Wipe)

8 Is not used.

Tip!

Use prefabricated cables for connection.

3.4 CONNECTION OF A PC

Any standard Windows PC with one free RS232, USB 2.0, USB 3.0 port can be connected.

The can be connected with 3 different methods.

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•USB Mini to USB cable. (Max 1 meters)

•RS232 9 Pol Male to 9 Pol Female cable. (Max 2 Meters)

If computer is not equipped with RS232 port an USB to RS232 adapter can be used.

•Bluetooth communication kit

Use a standard straight serial RS232 PC-cable with a 9 pole DSUB Male Female connectors, for connection to .

4. OPERATING INSTRUCTION FOR USING SA5A STAND ALONE

The instruction below only handles the operating instruction for using the SA5A as a stand-alone instrument.

See separate BTS11 User manual for use of the PC-software

4.1 BEFORE OPERATION

Important!

Read chapter 2. SAFETY REGULATIONS before any connections.

4.2 STANDALONE OPERATION OF SA5A

The SA5A LCD-display and two operation buttons "OPEN" and "CLOSE" for simpler operations and measurements.

Starting up the display will present the version of the internal software.

After unit is started the display shows, the next operation that can

be done: Ready for Open or Ready for Close"

Voltage value for inputs: Uc, Uk, Ul, Um.

Current value: Im for motor.

Symbol

Voltage type

Volt DC

Volt AC

Ampere DC

Ampere AC

When the display shows

Pressing Button

OPEN: A open operation is done

CLOSE: A close operation is done

CLOSE and OPEN: A close-open operation is done

When the display shows

SWITCH ANALYSER

SA5A 5.12

2018-04-17

www.elcon.se

Ready for Close 31°

Uc 110 V= Uk 0 V=

Ul 0 V= Um 230 V~

Im 0.0 A=

Ready for Close 21°

Uc 0 V= Uk 0 V=

Ul 0 V= Um 0 V=

Im 0.0 A=

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Pressing Button

OPEN: An open operation is done

CLOSE: A close operation is done.

The results of the operation are automatically displayed after a made operation.

After a CLOSE, OPEN or CLOSE-OPEN operation.

Result will display operating times for contacts 1A, 2A, 3A, in milliseconds. (Ring marked contact inputs on the panel).

Maximum coil current during operation is displayed as X.XA^.

OPEN

CLOSE-OPEN

Pressing any of the operation buttons "CLOSE" or "OPEN" will get you back to monitoring mode where new operations

can be done.

5 TECHNICAL SPECIFICATION.

MAINS SUPPLY

Marked: MAINS

Input voltage: 100 –240 V DC / AC 50/60 Hz

Max power: 50W

Connector type: IEC Inlet Filter

Fuses: 2

Fuse type: 5x20mm

Fuse rating: T3.15A

MAIN CONTACTS

Marked: A, B, C.

Inputs: 3 independent.

Function: Measure contact timing of main and pre-insert resistor contacts

Voltage: 48Vdc

Current: Max 11 mA when load is between 24-48V

Max 30 mA when load is between 0-24V

Timing resolution: 20s at 50 KHz sampling.

Max Voltage between red and black output: 250VAC / 300VDC

AUXILIARY CONTACTS

Marked: a, b, c.

Inputs: 3 independent

Function: Measure contact timing of aux contacts

Voltage: 24Vdc

Current: Max 11 mA

Timing resolution: 20s at 50 KHz sampling.

Max Voltage between red and black output: 250VAC / 300VDC

Contact times Close

A 51.52 ms 2.8A^

B 51.50 ms

C 51.48 ms

Contact times Open

A 42.66 ms 2.7A^

B 42.64 ms

C 42.62 ms

Contact times C-O

A 45.10 ms 2.8A^

B 45.08 ms

C 45.06 ms

Ready for Open 32°

Uc 110 V= Uk 0 V=

Ul 0 V= Um 230 V~

Im 0.0 A=

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