|
Car electric parts |
Tet |
Test item/ condition |
|
Devices |
Inspection
Object |
Test
(Equipment) |
Test method |
|
Starter Motor |
Armature |
Surge test
(Surge tester) |
- Contact each pin to 4 pointsof commutator with 90 angle.
- Test between symm. pineswith electrical turning (3 times) |
Short between commutators.
- Test voltage : 1~1.5kV
- Checking of coiled condition |
|
Hipot
(Hipot tester) |
- Between coil and core |
High voltage withstanding. |
| Alternator |
Stator Coil & Rotor Coil |
Surge test
(Surge tester)
|
- Test for each phase of 3Ø(2 times )
- Compare the duplicated waveforms (3 times) |
Lay short, Turning short, Coiled condition, Misconnection.
- Test voltage : 1~1.5kV/sec. |
Hipot
(Hipot tester) |
- Between coil and core |
Insulation quality |
Resist. Comparison
(Resistance tester) |
- Test for each phase of 3Ø
( 2 times or 3 times) |
Wire open of the twisted pair,Bad winding quality,Protection from other model mixing. |
|
Magnet
Switch |
Magnet Coil |
Surge test
(Surge tester) |
- 2 times for right direction winding.
- 3 times for reverse direction |
Layer short, Turning short, Coiled condition, Misconnection
- Test voltage : 1~1.5 KV |
Contact point
(copper plate) |
Gap 1 distance
Gap 2 distance
(Gap tester) |
- Move plunger by air-cylinder and check Gap1 and Gap 2 sequentially. |
Assembled quality of spring.
Bad contact, Contact distance.
-Auto decision (Good/Bad). |
| Contact operating condition |
Contact voltage
(ON/OFF voltage) test
(Relay tester) |
- Voltage increase ->ON test
Voltage decrease ->OFF test |
Magnet's performance.
( operating condition of magnet)
- Auto decision (Good/Bad).
- Presetting of on/off voltage tolerance |
| Ignition Coil |
1'st/ 2'nd Coil |
Surge test
(UHVG Surge tester) |
- Apply 20~30KV to 2'nd coil (for generation of surge waveform)
- Measure 1'st and 2'nd coil. |
Layer short, Corona,Coiled condition, Wire open. |
Magnet Clutch
(Air Conditioner) |
Magnet coil |
Surge test |
Between both ends of coil |
Layer short, Turning short, Wire open. |
| Hipot. |
Between coil and core |
High voltage withstanding. |
|
Carburetor |
Valve Solenoid coil (Duty, Slow Cut) |
Surge test |
Between both ends of coil |
Layer short, Turning short, Wire open. |
| Hipot. |
Between coil and core |
High voltage withstanding. |
| Resistance test |
Between both ends of coil
(comparison of resistance) |
Resistance. Short, Open.
- Auto decision (Good/Bad). |
| Plunger |
ON/OFF voltage test (Relay tester) |
- Voltage increase -> ON vtg
- Voltage decrease -> OFF vtg |
Plunger's performance
(operating condition of plunger) |
| Motors (Fan, Blow,Wiper, Power Window, etc) |
Armature Coil |
Surge test
(Surge tester) |
- Contact each pin to 4 points of commutator with 90 angle.
- Test between symm. pines with electrical turning (3 times) |
Commutator short, Layer short Coiled condition, Wire open. |
Fusing test
(Resistance tester) |
- Contact each pin to each commutator.
- Measure each resistance with electrical turning.
|
Bad connection
(between commutator and coil) |
| Hipot. |
Between coil and core. |
High voltage withstanding |
| Others (Relay,Solenoid) |
Magnet coil |
Surge test |
Between both ends of coil. |
Layer short, 1 time short, Coiled condition. |
| Hipot. |
Between coil and core. |
Coiled condition. |
| Resistance |
Between coil and core. |
Resistance tolerance |
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