Wire tube (tube, PVC tube) installation does not conform to the requirements

 Motor parts electric motor fan cover 

Specifications
1.Customised 
2. good quality 
3. 20 years manufacturing experience 
1, the phenomenon of (1), cable pipe multi-layer overlap, there are higher than that of the temple square steel bar gluten. (2), wire and tube side by side for more than 2 or 2 root clingy. (3), electrical, pipe buried depth of the wall is too shallow, and even buried outside the walls of the powder layer. Pipe die bending, folding, dent phenomenon. (4), wire and tube into the distribution box, pipe in mouth not to fill, in the show is too long; Nozzle is not level off, different length; Nozzle without skirts; Not locked. (5), embedded PVC wire pipe not with stopper head plug, but with the clamps bend mouth flat. 2, (1) analysis of the causes, generator construction personnel to the related specifications are not familiar with, careless attitude toward work and convenience, not according to the provisions. Construction administrator management does not reach the designated position. (2), architectural design layout and electrical professional cooperation is not enough, cause more narrow line pipe 3 phase induction motor through the same plane. 3, preventive measures (1), and to strengthen the quality control of construction process of site construction personnel, targeted training of workers; Management personnel must be familiar auto spare parts with related specifications, strict management. 


three phase induction electric motor Y series B35 1.5KW 2.2KW 37KW 75KW

Specifications
-One year warranty 
-Within 25 days delivery 

-Life: 5-7 years 
(2), squirrel cage induction motor three phase induction motor small diesel engine wire and tube multi-layer overlap generally appeared in the high-rise building public channel. When tower house each layer has six sets of the above, the proposal had better use the public corridor of smallpox condole top civil ACTS the role of alternator generator way, so most of the electrical professional into the door line can be directly above the ceiling installation slot to houses. Also can adopt the way of increasing public aisle floor, to hidden many wire and tube. When electrical construction professionals cloth tube should reduce overlapping layers of line pipe at the same point. (3), wire layer cannot clingy, side by side, such as the construction of it is difficult to clearly separate, can be used to separate the small concrete. (4), wire inside the tube into a brick wall, the distance from the surface should not be a boy of 15 mm, to "horizontal flat vertical pipe laying. (5), wire and acmotortrading.blogspot.com tube bending radius (dark bury) should not be less water pump price than 10 times the pipe diameter, pipe bend to bend with pipe bender or kink holding level off is smooth, does not appear the phenomenon such as flat folding, dent. (6), wire and tube into the distribution box should level off, the length is 3 to 5 mm, tube with a sheath and lock box shell. Distribution box into the floor type wire tube, pipe distribution box should be higher than that of base surface is 50-80 - mm. (7), embedded PVC wire tube, it is prohibited to the nozzle with forceps clip flat, curved, fist application conforms to the pipe diameter PVC pipe stopper head to block, and adhesive binding firmly.

DBJ08-20-98 household electric equipment should meet the following standard

 AC motor aluminum 2800 rpm motor fan cover 
Specifications
1. Customised 
2. good quality 
3. Surface treatment: Galvanize 
4. AC motor 
4, appropriate chooses protective type electrical outlet, the configuration should not be less than the following provisions: buy, buy, decorate a BBS, diesel generator property BBS: (1) single bedroom set and www.dongfeng-motor.com single- phase three pole socket two single-phase poles, single-phase three pole air conditioning a socket; (2), double bedroom, living room and master bedroom set and single phase three pole socket three single-phase poles, single-phase three pole air conditioning a socket; Single-phase poles (3) the kitchen set and single phase three pole single phase motor combination electric outlet and single phase three pole with each a switch socket, and three phase induction motor near the platoon lampblack machine highly single-phase three pole a socket; 

CCC CE ROHS UL VDE Certification and 115/120 V AC Voltage 220V&120V induction motor
Specifications
1. Specifications1.3-phase asynchronous motors 
2. IEC standard 
3. OEM 
4. Voltage:50HZ &60HZ;380V&415V 

5.Protection class: IP54 
(4) the toilet set single-phase poles and single-phase three alternator generator pole a socket, a washing machine of toilet, should add the single phase three pole switch socket, a toilet socket splash proof should be adopted. The above regulations is minimum, almost every family to feel the socket is synchronous generator not enough, want to use temporary line socket board added as a supplement, a socket board up three or four electric equipment is a common ac motor phenomenon, if these are small capacity, electrical equipment such as home computer for four or five socket, it is www.dongfeng- motor.com allowed. If the socket board at the same time, electric kettle, electric heater etc. Large capacity magnetic generator electric equipment is not allowed, because the wire would overload fever.

Stepper motor and ac servo motor performance comparison different running performance

ac motor Lamination 220v class B/F 
Specifications
1. Lamination of electric motor 
2. IP54 class F 
3. 100% copper 
4. silicon steel stamping 

5. stunning performance 
Stepper motor control for the open loop control, single phase motor start frequency is too high or too much load step easy appear lost or blocked, stops frequently occur high speed overshoot phenomenon, so as to ensure the control accuracy, should handle the ascending and descending speed acmotor2.blogspot.com problem. Ac servo single squirrel cage induction motor phase motor drive electric water pump system for closed-loop control, the actuator can small synchronous generator diesel engine be three phase induction motor directly to the 3 phase induction motor motor encoder feedback signal sampling, internal position loop and speed loop, ac induction motor general won't electric generator appear step motor lose step or overshoot phenomenon, more reliable control performance.

Trapezoidal wave type in phase 5

AC induction cooling fan motor 
Specifications
1.Customised
2. good quality
3. 20 years manufacturing experience

 In the case of vector control, we main control corresponding to the rotor magnetic field parallel and perpendicular direction of motor current and voltage. This suggests that we measured by electrical current must pass a PI controller for mathematical calculations, and then from the stator three phase static structure into the lamination dynamic structure of rotor d - q (parallel and perpendicular to the rotor magnetic field direction). Also, the control voltage at the motor also need through mathematical calculation to its by the rotor structure of d - q into the stator three phase static structure, and then input to the PWM modulation part. These transformation requires that we have the ability of mathematical processing, DSP and high-performance processors will be used as the core of the vector control. Although the www.dongfeng-motor.com transformation of the structure to need one step calculation could be done, but we will use two steps to describe more convenient. 

Motor current first from the structure of the physics 120 degree phase stator three phase into a stable dynamic orthogonal orthogonal d - q structure, and then by the dynamic structure of the stator into the three-phase static structure of the rotor. In order to ensure effective results, these calculations must be P - I controller made within a sampling period. The above this kind of transformation and P - I needed for the controller voltage signal from the d - q structure into the phase structure of the stator coil operation just the opposite. Once the motor current is converted into d - q structure, control becomes very simple. We need two way P - I controller; A parallel control and rotor magnetic field of current, a vertical current control. Because of the parallel to the current control signal is zero, so it's make motor is parallel to 12v motor the current component is zero, it also have driven motor current vector all into vertical current. Since there is only vertical electric current to produce effective torque, motor efficiency is maximized. One P - I controller is mainly used to control the fan cover vertical current, torque demand in order to obtain consistent with the input signal. This also makes the vertical current was controlled in accordance with the requirements in order to obtain the required torque.