The welcome visits Shandong Hairui Zhonglian Pump Industry Co. , ltd. Website, the sumbersible pump that my company is a major produces manufacturer. When you need sumbersible pump type selecting, we will provide the before-sales service such as price of sumbersible pump model, sumbersible pump, in order to offer your referenced alternative. This product information is about causing the knowledge of overheat of sumbersible pump electric machinery:
A lot of users are in process of use sumbersible pump, may encounterSumbersible pumpElectric machinery hair is very hot, overheat phenomenon, this kind of phenomenon is commonly by the environment, use undeserved, or equipment oneself reason cause, next interview talk about sumbersible pump electric machinery to send a few kinds of very hot reasons:
Respect of 1) , power source makes electromotor overheat:
Voltage of A, power source is exorbitant
When power source voltage is exorbitant, electromotor turns over electromotive force, magnetic flux and magnetic flux density to all increase subsequently. Because the size of iron loss and square of magnetic flux density become direct ratio, criterion iron loss increases, bring about core overheat. And magnetic flux increases, cause heft of excitation electric current to increase quickly again, cause caustic of stator winding copper to increase, make winding overheat. Accordingly, when power source voltage exceeds the rated voltage of electromotor, can make electromotor overheat.
Voltage of B, power source is too low
When power source voltage is too low, if the electromagnetism torsion of electromotor keeps changeless, magnetic flux will be reduced, rotor electric current increases accordingly, heft of laden power source increases subsequently in stator electric current, cause the cupreous loss that winds a string to increase, cause calm, rotor winding overheat.
Asymmetry of voltage of C, power source
When power supply cord one photograph open circuit, fuse one photograph fusing, or starting equipment burn causes one photograph to be illogical, will cause three-phase electromotor to go single-phase, cause the 2 photographs winding that move through big electric current overheat, until burn down.
2) , load makes electromotor overheat:
Overload of A, electromotor moves
Do not deserve to cover when equipment, when the laden power of electromotor is more than the rated power of electromotor, criterion long-term overload runs electromotor (namely the pony pulls cart) , can bring about electromotor overheat. When maintaining pyroelectricity motive, should make clear laden power and electromotor power first whether conform to, in case blind is aimless disassemble.
B, pull the mechanical load that move the job is abnormal
Equipment although form a complete set, but what pull the mechanical load that move the job is abnormal, size of the load when moving, electromotor overload and calorific.
C, pull the machine that use to have trouble
The machine that should be hauled to move has trouble, roll is ineffective to live or be stayed in by card, will make electromotor overload, cause electromotor winding overheat. Reason, when overhauling electromotor overheat, the element of laden respect cannot be ignored.
Itself of 3) , electromotor causes overheat:
Winding of A, electromotor opens circuit
There should be open circuit of one photograph winding in electromotor winding, or when there is a spur track to open circuit in shunt-wound spur track, will bring about three-phase electric current lopsided, make electromotor overheat.
Short circuit of winding of B, electromotor
When breakdown of electromotor winding occurrence short circuit, short-circuit current is gotten greatly than regular job electric current much, make winding copper loss increases, bring about winding overheat, even burn down.
C, electromotor receives law mistake
Sumbersible pump receives law electromotor when the triangle when the fault receives astral form, electromotor still takes full load to move, the electric current that stator winding has shed should exceed rated electric current, and even bring about electromotor proper motion to jockey, if stop,turn time is a bit long not dump, winding not only serious overheat, still burn down. When electromotor of astral form connective the fault is received triangularly, or a certain number of the electromotor fault that coil group strings together a spur track accepts parallel connection of 2 spur track, will make winding and core overheat, serious when burn down winding.
E, electromotor receives law mistake
Receive when group of a coil, coil or one photograph winding when turning over, can bring about three-phase electric current serious lopsided, and make winding overheat.
The mechanical failure of F, electromotor
Bend when electromotor axis, assemble bad, bearing amiss etc, all can make electromotor electric current increases, cupreous loss and mechanical attrition loss increase, make electromotor overheat.
Thank you very much to Shandong Hairui Zhonglian Pump Industry Co. , ltd. The visit of official website! Above is about causingSumbersible pumpThe introduction of electric machinery overheat, still think to this problem like you deep one pace understanding, or the problem that has price of model of type selecting of product of other pump industry, water pump, water pump, water pump needs to solve, contact this water pump manufacturer please, my company returns production to suck pump oneself, welcome you at any time seek advice.
