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CHECKEn N- ANALOG AND DIGITAL' ISOLATION DEVICE I,

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3 This procedure details the objectives, test and documentations requirements to implement the isolation device testing program. )-

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:1 2.0 OBJECTIVE

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The objective of these tests is to demonstrat e the ability of~

the isolation devices used in the SFAS modules and system towithstand the application of fault voltages and currents tothe Non-1E side of the isolator.

3.0 TEST E0VIPMEflT

Power Supply

Module Power I 15 VDC 0 2.0 amp

# + 24 VDC 0 1.0 amp 4

Fault V & C 172 VDC 0 2.0 amp

24 VDC 0 36 amp

OVM - Data Tech Podel 40 or equivalent

Oscilloscope - Techtronic 465 or eouivalent

Chart Recorder - Gould/ Brush 220 or equivalent

AIIrneter - Weston 931 50 amp or equivalent ''

Current Probe - Techtronic P5042 or equivalent

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4.1.1.3 Test'to FailureJ. . .. .

41.2- 6N81' Bistable .-.~

4.1.2.1 K1 Relay Input-

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4.1.3 6N83 Output Module4.1.3.1 K3 Relay Input

4.2 Analog Isolation Device Test -

4.2.1 Fischer Porter I/I '

4.2.1.1 023rati'onal Test.4.2.1.2 Fault Voltage4. 2.1. 3 Fault Current

> 4.-5.0 TEST PROCEDURE

5.1 Clare Relay MBR2A12 CCC P/N KEL431B

1. Connect Relay Under Test as shown in Ficure 1. Note:Connect 172 VDC P/S to separate isolated 115 VAC sourcefrom 115.VAC for scope or chart recorder.

2. Operate 51 in test circuit and observe and record scopeand chart recordings on Data Form 6.1.

3

3,,' Connect relay under test as shown in Figure 2.,,

'4 . Operate Si in test circuit and observe and record.

scope and char +, recordinos on Cata Form 6.2.',, ,,

5. Connect relay under test as shown in Figure 3. ,

1

: 6. Operate 51 in test circuit and increase current thrui relay contacts until relay fails. Record scope and chart

.' . recordings on Data Form 6.3. j.

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7. Perform dielectric test between coils and contacts 0 |'

1250 VAC. Record on Form 6.3.

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.5. Apply fault voltage 172 VDC 01.5A to test input. Maintaininput for 20 seconds.

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6. Set input to cause module to trip.

7. Observe and record scope and chart recordings on Form 6.4A."

8. Connect bistable as shown in Figure 4B.

9. Set input to .caese module to trip.

10 Set input to 52.15'lof input. Clear trip light.

. input for 20 seconds.'

Maintain11. Apply fault voltace 172 VDC 91.5A to test input.,

12. Set input to cause module to trip.,

13. Observe and record scope and chart recordings on Form 6.4B.

- -..

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5.3 OttJut Module Test.

1. Connect module as shown in Figure 5.

2. Oper and Close 51 in test circuit. Verify output oper-'

ation of nodule.e. .

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4. Open and Close S1'in test circuit. :Viriff out;put operation .~

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3. -Connect.I/I.as,shown in Figure.7.,-

j 4. Set input to values shown on Form.6.7. . Apply fault voltageg and current at each input value. *

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5. Observe and record scope and chart recording 'on Form 6.7.

6. Perform Dielectric Test between +,4 and ,B terminals0 1064 VAC. Record on Fonn 6.7.

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7. Connect I/I as shown in Figure 8. '

8. Set input to values shown on Form 6.8.' Apply. fault voltageand current at each input value. >

9. Observe and record scope.and chart recordings.on Form 6.8.'

10. Perform Dielectric Test between +,4 and ,B. terminals -at 1064 VAC. Record on Form 6.8.

11. Connect I/I.as shown in Figure 6.

12. Verify correct operation by completing Forn. 6.68. ,

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