德纳(北京)电机有限公司
Dana (Beijing) Electric Motor Co. Ltd
.
电话
Tel
:
010
-
69596333
北京市通州区宋庄
Songzhuang Tongzhou District Beijing 101118
德纳(北京)电机有限公司
Dana (Beijing) Electric Motor Co., Ltd.
7.4. Troubleshooting method for vehicle insulation faults
Note
: When repairing and maintaining high-voltage components, shut down and wait for 3-5 minutes before
proceeding, and wait for the capacitors to discharge. 500V range shall be used to measure the insulation resistance of
MCU, and 1000V or above shall not be used for measurement.
When the vehicle's insulation reaches the highest insulation level, the vehicle is in the stop mode. If the vehicle can
still run normally after the key switch is restarted, the vehicle manufacturer is required to use an insulation resistance
meter to measure the insulation resistance of the high-voltage components separately. Unplug the electrical equipment
one by one from the high-voltage power distribution cabinet, and the vehicle manufacturer arranges personnel to get
along with the vehicle to test for that part of the insulation problem
When the vehicle's insulation reaches the highest insulation level, the vehicle is in the stop mode. If the vehicle cannot
run normally after the key switch is restarted, the vehicle manufacturer is required to use an insulation resistance
meter to measure the insulation resistance value of the high-voltage parts one by one. Supplier personnel arrived at
the site to troubleshoot.
Measure the MCU: Remove the DC bus from the MCU, use the insulation resistance meter to test the positive pole
to ground, and the negative pole to ground (insulation resistance meter test method: adjust the insulation resistance
meter to 500V voltage range, and the negative test lead to the MCU casing , The positive test lead touch the MCU's
bus terminal positive and negative) should be greater than 3M
Ω.
If it is less than 3M
Ω,
remove the phase cable and
test the insulation resistance of the MCU separately. If it is still less than 3M
Ω,
you need to replace the MCU. If it is
greater than 3M
Ω,
you need to test the motor and phase cable separately.
Measuring motor: The insulation resistance meter is adjusted to the voltage range of 1000V. The positive pole of the
test lead is to any one phase of each group, and the negative pole to the motor case the resistance value shall not be
less than 70M
Ω.
Measure phase cable: first visually check whether there is broken skin and whether the shielding layer is in contact
with the cable. If no problem is found above, adjust the insulation resistance meter to the voltage range of 1000V.
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Summary of Contents for XML6125CLE
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Page 17: ...General Instructions GI 6126J12 01 GI 14 1 16 ...
Page 18: ...General Instructions GI 6126J12 01 GI 15 1 17 ...
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Page 259: ...REPAIR MANUAL ZF DROP CENTER AXLE AV 132 II AV 132 II T 5871 214 102 en 5 1 ...
Page 340: ......
Page 344: ...SU 4 Suspension System ECAS Electric control system WABCO Bus ECAS operation manual 6 4 ...
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Page 454: ...BR 50 Brake System BR 6125J93C 01 2 General schematic diagram of brake system 8 50 ...
Page 462: ...BR 58 Brake System BR 6125J93C 01 8 58 ...
Page 469: ...Break System BR 6125J93C 01 BR 65 8 65 ...
Page 470: ...BR 66 Brake System BR 6125J93C 01 8 66 ...
Page 471: ...Break System BR 6125J93C 01 BR 67 8 67 ...
Page 483: ...Break System BR 6125J93C 01 BR 79 8 79 ...
Page 485: ...Break System BR 6125J93C 01 BR 81 8 81 ...
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Page 511: ...2019 12 17 CATL Confidential Introduction of Power Battery System CATL AFS STTG ...
Page 513: ...2019 12 17 CATL Confidential Page 3 Composition of Battery System Chapter 1 ...
Page 516: ...2019 12 17 CATL Confidential Page 6 Introduction of Battery System Hardware Chapter 2 ...
Page 518: ...Appendix 1 MSD 2019 12 17 CATL Confidential Page 8 MSD A With Fuse MSD B Without Fuse ...
Page 519: ...Appendix 2 Pressure Valve Upper Lid 2019 12 17 CATL Confidential Page 9 Outer side Inner side ...
Page 535: ...2019 12 17 CATL Confidential Page 25 Introduction of Battery Management System BMS Chapter 3 ...
Page 537: ...3 2 Electrical Schematic Diagram Example 2019 12 17 CATL Confidential Page 27 ...
Page 538: ...3 3 Principle Diagram of Battery Management System BMS 2019 12 17 CATL Confidential Page 28 ...
Page 539: ...CATL AMD CODE FOR DAILY USE OF EV BATTERY SYSTEM KongCF ...
Page 564: ...Thank you for watching Web http www catlbattery com Tel 400 918 0889 Any questions ...
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Page 601: ...G H T w Air outlet 3 8 产品铭牌安装 位置 产品铭牌安装 位置 11 25 ...
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Page 603: ...GOLDEN DRAGON 电源 故障 火警 负极 电源 故障 火警 正极 18 32VDC 负极 进风口 11 27 ...
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