Sollatek AVR 3X20 Mode D'emploi page 12

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THREE PHASE AUTOMATIC VOLTAGE REGUL ATOR
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THREE PHASE AUTOMATIC VOLTAGE REGULATOR Issue: Feb 2002
Issue: Feb 2002
THREE PHASE AUTOMATIC VOLTAGE REGULATOR Issue: Feb 2002
Final Test Procedure
Product Name: Installed Large AVR
Inspection Checklist
1. Check PCBs for damage, poor alignment, comb positioning and general condition.
2. Ensure that all internal nuts, bolts and fixings are secure and that nothing has come loose during installation.
3. Examine all wiring, paying particular attention to power cable terminal tightness. If Bypass is fitted, check all
power connections. Check crimp joints have not loosened.
Check all pink/grey connections are correct and that ribbon cable connectors have not been dislodged.
4. Clean all exterior panel work and check for damage.
Function Test
1. Note all results on form QF07.
2. Using a variac on input of one phase at a time, with a test lamp at the output, increase voltage until ST165
master switches on (reset LED goes off). Note input voltage. This should be in the range 140V to 170V.
3. Reduce input voltage and note voltage at which reset LED lights. This should be between 120V and 135V.
4. Increase input voltage from 160V and note output voltage at which tap down occurs on each tap. This should
be at 240V +/- 1V.
5. From 270V reduce input voltage and note output voltage at which tap up occurs on each tap. This should be
at 220V +/- 1V.
6. Set output voltage to 220V on brown tap. Input voltage should be less than 161V.
7. Set output voltage to 240V on violet tap. Input voltage should be greater than 280V.
8. Set input voltage to 230V. Compare measured input voltage to displayed input voltage. Difference should not
exceed 2%.
9. Compare measured output voltage to displayed output voltage. Difference should not exceed 2%. AVS must be
operational for this test.
10. Compare measured output current to displayed output current. Difference should not exceed +/- 10% at
20% full load. AVS must be operational for this test.
11. Connect two phases to the input of the AVR. Connect the third phase via the variac. Adjust the variac voltage
to 230V. Time the delay before AVS switches on. This should 10 seconds +/- 5%. Ensure AVS amber LED
illuminates during wait.
12. Increase variac voltage until AVS cuts out. Note AVS input voltage. This should be 260V +/- 3 V. Ensure Red
overvoltage LED is illuminated.
13. Reduce input voltage to 230V. Ensure AVS amber LED is illuminated. Once AVS has re-connected reduce input
voltage until AVS cuts out. Note AVS input voltage. This should be 190V +/- 3 V. Ensure red undervoltage
LED is illuminated.
14. Note AVS HVD, LVD and Time delay settings.
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Document Number: QP07
Variants: All ST165 based