显示标签为“small water pump”的博文。显示所有博文
显示标签为“small water pump”的博文。显示所有博文

2015年1月18日星期日

PID controller debugging method, adjust proportion coefficient

full load 75% load 50%load three phase induction electric motor Y series B35
Specifications
-One year warranty 
-Within 25 days delivery 

-Life: 5-7 years 
Proportion coefficient P the adjusting range is generally is: 0.1-100. If a gain value 0.1, deviation of PID regulator output change to one over ten. If a gain synchronous generator value 100, deviation of www.facebook.com/dongfeng.motor PID regulator output changes for one hundred times. The effects of the gain is the value, the greater the proportion lamination is single phase 3 hp motor larger. When the initial setting, choose smaller, then slowly motor vehicle spare part up, until the system fluctuations enough hours, then the integral three phase induction motor price or differential ac induction motor coefficient adjustment. Excessive P values will lead to system instability, sustained oscillation; The P value is too pump parts small and will make the system slow. Appropriate value should make the ac generator system have enough but not too sensitive reaction, the sensitivity of the delay of time depends AC motor on the integration time to adjust.

2015年1月7日星期三

DBJ08-20-98 household electric equipment 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
Line 5, developed countries do not allow the temporary use for a long diesel engine time, at the same time required to have enough number of sockets. Water pump Because the temporary line in the use of easy damaged, can lead to personal electric shock and electrical fire accident; On the number of sockets, the national electrical code (NEC) regulation: the distance auto spare parts between the two point socket must not exceed 12 feet (3.66 m), that is, a household electrical appliances such as cannot meet auto spare parts the outlet squirrel small diesel engine cage induction motor from the left, to the jack on the right side. The socket of Hong Kong's bedroom, living www.dongfeng- motor.com room and kitchen are 4, 7, 4 respectively. 6, loop must add leakage protection socket. Electric sockets are basically meet loads hands palpable mobile appliances (vacuum cleaners, waxing machine, landing or desktop fan) or fixed appliances (refrigerators, microwave ovens, electric heating shower and washing diesel generator set machine, etc.). When the electrical equipment of wire damage (especially portable electric wire) or hands can touch charged shell of electrical equipment, there is a shock magnetic generator hazard. In addition to air conditioning power socket, other outlet shall be set up leakage protection device.

2014年11月30日星期日

Servo motor cable to relieve stress

Y2 series high power China ac motor
Specifications
1. effiency: IE2 and IE1 
2. 20 years manufacturing experience 
3. 12 months guarantee 

4. low noise and vibtration 
A: to ensure that the cable is not because of external bending force or under vertical load torque or its spare parts weight, especially in the cable or joint at the exit. B: in the case of a servo motor to move, should put cable (that water pump price is, with the motor configuration) is firmly fixed diesel magnetic generator single phase motor generator to a stationary part (motor), and small diesel engine should use an additional cable installed in synchronous generator the cable support to prolong it, so www.dongfeng-motor.com that the ac induction motor bending stress can be reduced to a minimum. C: the diesel generator set bend radius of the cable to be as large as possible.

2014年11月27日星期四

The selection generator price of thermal relay

 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 
Thermal relay used in motor overload protection. The choice of thermal relay is based largely on. The rated current of the motor to determine the type and specification. Rated current of the thermal relay element. IRT should be close to or slightly greater than the rated current of the motor Ied, namely: the electrical control system design. In general, can choose two phase structure of thermal relay, the serious imbalance in the power grid voltage, motor under the condition of poor working conditions, can choose three phase structure of the thermal relay, for motor delta connection, in order to achieve the phase failure protection and are optional with open phase protection of thermal relay. If the following electric motor parts circumstances.


motor lamination three phase induction wound rotor 
Specifications
1. Lamination of electric motor 
2. IP54 class F 
3. 100% copper 
4. silicon steel stamping 

5.stunning performance
the choice of thermal relay setting current than the motor rated current of components, www.dongfeng- motor.com in order to protect: (1) the inertia torque motor load is single phase motor very large, rotor the starting time is long; (2) motor driven equipment, do not allow any power failure; (3) motor drive for the impact loads, such as punching machine, shearing machine equipment. The commonly used thermal relay JRl, JR2, permanent magnet generator lamination machine JR0, JRl6 etc. JRl6B series double metal plate thermal relay and www.dongfeng- motor.com its current setting range is wide, and a temperature compensating device, suitable for long-term job or intermittent ac motor overload protection, and phase failure protection device operation. generator JRl6B diesel generator set is modified by JR0. This series of products used in place of JR0 three pole and thermal relay with phase failure protection.