PID control - the PID alternator generator method

 electric motor lamination motor spare parts 
Specifications
1. Lamination of electric motor
2. IP54 class F
3. 100% copper
4. silicon steel stamping
5.stunning performance
 PID is one of the most commonly used in the production of industrial control, PID control instrument is also one of the most commonly used in industrial control instrument, PID is suitable for the need for high accuracy measurement control system, according to the controlled automatic calculus of the optimal PID control single phase motor price parameters. PID parameters self-tuning controller can choose outside ANP gost motor a given or valve position control function. Can replace the servo amplifier direct drive actuator (e.g., valves, etc.). Outside a given PID or valve position controller can automatically follow the external generator set given value (or valve position feedback value) to control the output generator (analog control output or relay forward and inversion of control output). It can generator price realize automatic/manual switch without disturbances. Manual switch to automatic, will use the method integrating, so as to realize the smooth manual/automatic switching. Outside a given PID or valve position controller can display measured signal and valve position induction motor prices feedback signal at the same time. 

3 Phase induction Electrical Motor MS Series for winding machine
Specifications
ambient temperature:-15 -40 
above sea level : not exceed 1000m 

rated voltage:+-5% 
PID column display control device integrating digital instrument and analog instrument, digital quantity on measurements and control target for display (double LED digital display), and at the same time to relative measurements and control target analogue display (double column display), the display Electric motor mode for the analog display, LED digital display + double beam makes measurements show more clear and intuitive. The PID parameters self-tuning controller can be resized instrument input signal types. No jump line using the latest technology, need to set the instrument internal parameters, the instrument can be changed from an input signal to another input signal. PID parameters self-tuning controller can choose all the way with analog control output (or switch quantity control output, relay and thyristor are turning, inversion of control) and output analog quantity to send ac generator all the way, can be applied to all kinds of measurement control occasions. PID parameters self-tuning controller supports multiple machine communications, has a variety of standard series two-way communication function, can choose a variety of communication methods, www.facebook.com/guohong.trading such as RS - 232, RS - 485 and RS - 42, communication baud rate of 300 ~ 9600 BPS instrument internal parameters set freely.

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

Totally Enclosed Protect Feature and Three-phase Phase low rpm ac electric motor
Specifications
1.IEC standard 
2.OEM 
3.Voltage:50HZ &60HZ;380V&415V 
4.Protection class: IP54 

5.Packaging Details:80-112 carton box 132 and above ply wooden box
1, each unit into Water pump the households must have built-in resident distribution box. Resident distribution box set power master switch, the switch can cut off phase ac induction motor line and neutral wire at the same time, and has disconnected. Each unit shall set electricity meter, electricity meter box should electric motors be stratified concentrated wall dark installed in public area. Resident distribution power always switch poles switch should be adopted in diesel generator set the oven, master switch capacity selection cannot too big, also cannot too small; To avoid and separate phenomenon at the same time tripping. Electricity meter box is usually stratified concentration is installed on the public channel, this is to facilitate squirrel cage induction motor the meter reading and management, wall is installed in order not to occupy the public channel. 2, a small set of (using the area shall be not less than 38 m2) electricity www.facebook.com/guohong.trading load design power for 4 kw; Medium (using area shall not be less than 49 m2) electricity load design power of 4. generator 6 kw; Great set (using the area of not less than 59 ac motors m2) electricity power load design for 6-8 kw.

Wire and cable, electrical should know some common sense

Must pay attention to the connection 3 phase induction motor is correct and reliable, and the secondary side are not allowed to answer the fuse or switch. Even if for some reason to dismantle the secondary side of the instrument or other devices, also must first to secondary side short circuit, then on again. Low voltage switch is lamination machine refers to under 1 kv isolating switch, circuit breaker, fuse and so on low voltage power distribution equipment controlled by load, must branch out, it is forbidden to more than a brake control and confusion. Low voltage rotor power distribution equipment and interlock of self-provided generator which should be reliable. It is strictly prohibited to bring their own power equipment and power grid parallel operation without permission. Low voltage power distribution equipment around before and after the operation and maintenance of channels should be laid on the insulation pad, piled up other items are strictly prohibited in the channel at the same time. Welding equipment: equipment first, followed by power supply. Dismantle rotor and stator devices: power supply, before equipment. Zero circuit: the first, followed by the line of fire. Down the line: after the first wire, scattered line. 

Low voltage fuse cannot as the motor overload protection. Fuse rated squirrel cage induction motor voltage must be greater than or equal www.facebook.com/dongfeng.motor to the working voltage of power distribution lines. Rated current of the fuse must be greater than rotor or equal to the rated current of the melt. Fuse breaking capacity must be greater than the possible maximum short-circuit current distribution circuit. Melt the selection of rated current, must meet the line normal working current and the starting current of the motor. For electric and lighting load short circuit protection, the rated lamination machine current of the melt is equal to or slightly greater electric generator than the rated current of the load. For single motor, melt rated current (1.5 2.5) or the motor rated permanent magnet generator current melt rated current in the power distribution system, and at a lower level shall coordinate, in order to realize the selective protection purposes. The next level should be smaller than at the next higher level. Ceramic plug fuse should be installed vertically, qualified fuse, must be used in other copper wire, etc. Replace the fuse. Spiral can fuse power into the line on the ac motors center of the base terminal, they can pick up the load for the shell of the screw terminals.

Common fault analysis and maintenance - running motor fault analysis

 Has swept chamber, vibration, mechanical bearing overheating and damage failure. Asynchronous motor, air gap between rotor is small, easy to cause, collision between the rotor. General because indoor end cover shaft hole wear or stop end cover mouth and base check mouth wear deformation, make the stand, end cover, single phase ac motor rotor misalignment caused chamber. Vibration should be distinguish is caused by the motor itself, or poor transmission device, or a mechanical load transfer, and then ruled out according to specific conditions. Belong to cause the vibration of the motor itself, mostly due to the rotor dynamic balance is not good, bad and bearing, shaft bending, or end cover, frame, rotor misalignment, or motor installation of foundation, installation does not reach the designated position, loose fasteners. Vibration can produce noise, will also generate additional load. Motor after electrify found speed to slow, analyze its reasons in many aspects, capacitor start motor capacity lack serious leakage, whether the capacitor voltage is too low, or a squirrel cage rotor article aluminum parts have a serious accident shrinkage cavity, breaks, and so three phase asynchronous motor on and so forth, especially the washing machine motor starting and positive and negative work alternately, often make article turned aluminum induced current big and make electromagnetic electricalmotor1.blogspot.com force increases, all can produce turned aluminum strip break, resulting in slow running to, serious when make the rotor fever and edm and burn winding lines).

Dust explosion-proof motor

 Y2 series 0.75kW (1HP) AC Motor for Speed Control
Specifications
1. effiency: IE2 and IE1 
2. 20 years manufacturing experience 
3. 12 months guarantee 
4. low noise and vibtration 
It refers to the shell design and manufacture according to the prescribed conditions, can prevent the dust ac electric motor into the motor shell or cannot completely prevent dust to enter, but it into the quantity does not interfere with the safe operation of the motor, and internal dust accumulation is not easy to produce fire danger, when using, also won't cause around with explosive dust mixture explosion of the motor. Its features are: (1) the shell has high sealing, in order to reduce or prevent dust acmotor2.blogspot.com into the enclosure, even to enter, it into the quantity also not form fire danger. (2) control the shell top surface allow temperature does not exceed the prescribed temperature group. At electric generator present, has been used in national food reserve of mechanized equipment. The national standard of dust explosion-proof electrical equipment for GBl2476.1-90 dust explosive environment with explosion-proof electrical equipment.

Three-phase no-load current of 2.5 0.75 KW motor, what reason be

Y2 series electric motor wholesale
Specifications
1. effiency: IE2 and IE1
2. 20 years manufacturing experience
3. 12 months guarantee
4. low noise and vibtration
There are two 0.75 KW... Grade 4... 380 v... The motor.. No-load current is between 2.3 to 2.6... Work environment textile... 'a lot... Rated current of the motor is only 2.2... Normal no-load current is www.dongfeng- motor.com around 1.6... Time machine completely under the condition of no load over current... Due to the current big. So high temperature sharply born... Will soon.. Overheating damage... Please say the reason... thank you Problem complement: I thank two answer first... Disease, spare parts and together, the two are not normal before.. In a few years later. You'll find the bad one current is increased. [. Repair of the motor are friends. Eliminate offline ribbon..] ... Until now, with or without load... Motor current is bigger... Last year when the motor current in 2.0 A... Now 2.4-2.5 A... Motor ac motor shaft sleeve inside and outside in good condition... Have not completed... Don't go... Just electric pilot time to run the old hot... Often the temperature in fan cover the 60-80 degrees... Wiring is right... Are the normal installation...