Ms Aluminum Housing 6 HP 7.5 HP 8 HP Three Phase Electric Motor for Saudi Arabia
Recommendation
Product Description
| Model |
kw |
HP |
Current |
Speed |
Eff |
Power Factor |
Tst/Tn |
Ist/In |
Tmax/Tn |
| MS-132S-4 |
5.5 |
7.5 |
11.7A |
1450 rpm |
84.7% |
0.84 |
2.2 |
7 |
2.2 |
Company Profile
FAQ
- Electrical failure caused by stator leads
Conductive cross section and diameter control of lead wires
In product design, not only the conformity of the lead cross section, but also the operability of the motor production and processing process should be fully considered, especially for large-sized motors, which require a large diversion area, which is usually not necessary at all. Serious errors can occur due to habitual thinking patterns. If the cross section of a single lead is too large in proportion, it will lead to unreliable welding of the lead wire, inability to lead out the casing, and the lead cannot be connected to the wiring board at all, and other unexpected problems. The common practice of this problem is to choose the way of parallel connection of small-area leads, but the total number of leads increases, and there are always small episodes and big mistakes in the wiring link.
Ms. has seen a low-voltage high-power motor with 24 leads of the motor. The motor is connected in a delta connection, with 4 leads at the head and tail of each phase. The motor customer is very careful when maintaining the motor. The A, B, and C marks are very clear. Somehow, the connection and tightening link made a mistake in wiring, which caused the motor to fail to start. Later, the service personnel of the manufacturer took care of it.
The lead and this line are connected with virtual welding or leaking line
This is the most problematic part of large-scale products, especially when there are many stator wires, the problem will be more serious. In order to ensure the reliability of welding, motor manufacturers will improve the final welding effect through argon arc welding, intermediate frequency welding, etc., but the effect is greatly reduced due to the problem of unclean cleaning of the paint on the welding head of this line; The cold pressing process, that is, crimping the lead and the main wire together through the connecting tube, and the matching relationship between the tube diameter and the wire core is not easy to grasp, and the reliability of the connection still fluctuates greatly.
Lead hardening problem
The VPI dipping process has greatly improved the insulation level of the motor, but the attached lead wires are also filled with paint, which makes the lead wires as hard as steel wires and no longer flexible. . For this reason, many motor manufacturers adopt the process of dipping paint first and then attaching the leads, but this process is relatively cumbersome, and the overall curing effect of the stator windings after dipping paint and then welding the leads is poor, and the reliability is low.
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