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> Automobile starter armature

Starter Armature testing panel WIND-ATS-02

Two station
starters and alternators for Low Duty cars
Product description: Starter armature testing panel with LCD and double working station, controlled by IPC, could programming testing the bar-bar resistance, welding resistance, dielectric strength(Hi-pot), Surge,insulati
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PRODUCT INTRODUCTION

Starter Motor Armature Tester test below items

1. Bar to bar resistance (Inter-chip resistance of two commutator bars)

2. Welding resistance (To check the welding quality, the smaller the better)

3. 180° Cross resistance (Bar to bar resistance of commutator which is 180° angle with opposite side)

4. Surge (Between the turns of the coils, comparing waveforms)

5. Isolation resistance (Resistance of the coils and stack core)

6. Hi-pot (High voltage between the coils and armature stack core)

Test Items	Test Description	Test result
Bar to Bar resistance	0.01mΩ~10mΩ	≤±0.5% Full scale
Welding resistance	0.01mΩ-10mΩ	±10μΩ
180℃ cross resistance	0.01mΩ-10mΩ	≤±1.5% Full scale
Surge	100-1000Vpp (Max 36sets waveform)	±5%
Isolation resistance	DC 500V	0.1-500MΩ ≤±5% Full scale
Hipot	AC 100-1000V	0-20mA ≤±.5% Full scale

Feature:

1. Bar to Bar resistance,0.01mΩ~10mΩ (Out of range display OVER)

Four-terminal measurement to ensure accuracy

Question: The adjacent resistance test is related to one commutator bar and the next one right?

How does the machine make this test?

Answer:Yes, the adjacent test measure the commutator neighbor bars, the machine use Four Probe Method(Four terminal sensing) to d adjacent resistance test

2. Welding resistance,0.001mΩ-10mΩ (Out of range display OVER)

Six-terminal measurement to ensure accuracy

Question: You told me that the welding resistance test is also related to the adjacent resistance test,

What's the method of measuring this resistance

Answer: Yes, welding resistance use Six Porbe Method to do test,

the machine check the resistance of three consequent bars

3. Cross resistance 0.01mΩ-10mΩ

Four-terminal measurement to ensure accuracy

4. Surge 100-1000V (100V/time)

Pulse crest:0.5u sec, Frequency 1~40MHz

Standard waveform is White, OK waveform is Green, NG waveform is Red

Question:

About the starter armature surge test, adjacent and space, I know tht is a qaalitative test but I need to know is there any rule to specify the frequency and voltage for different armatures?

Answer:

Starter armature surge test frequency for your machine is 40MHz, this frequency is for zoom in zoom out of waveform, pull and extend the waveform apart for clearly observation

(Compensation surge waveform)

The testing machine surge voltage is related to your starting motor armature's products situation and production process, for testing starter armtature motor 12V,24V, we usually set the surge current as 800V ~ 1000V in China local starter armature manufacturers.

Question:

In the graph what does the X axis represents?

Answer:

The graph waveform is for comparing area difference of tested wavefrom and sampling waveform,

The X axis represents the decay time (in µs) of the waveform, wave decaying along the time

Question:

Could you give us idest set the start point and end point of comparing the waveform?I mean that two vertical red lines used to delimitate the area

Answer:

The two red line should include cover .5~2 wavefrom, the idea start point we usually choose near the zero corssing or peak position of the first Peak oscillation period

5. Isolation resistance DC 500V

Testing time:1~10s (0.1s/time)

Range:1~500MΩ

Accuracy: ≤±5%

6. Hipot AC 100-1000V

Testing time:1~10s (0.1s/time)

Armature commutator bars ≤ 36 bars

13, 17, 19 (few), 21,23,25,27, 28,29,33slots (common)

Testing panel cycle time: 8~9s (according to 33bars)