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Characteristics of isolation transformer at the input end of AC power supply - Reynolds
a。 When the third harmonic and disturbance signals are severe, a barrier transformer can be used to eliminate the third harmonic and disturbance signals.
b。 The use of barrier transformers can generate new neutrals and avoid the abnormal operation of equipment due to defective neutrals in the grid.
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Progressive method of robustness of automatic control cabinets – Reynolds
1. Appropriate working environment
1. The ambient temperature is suitable
All manufacturers have certain rules for active temperature control cabinets. The PLC promises that the ambient temperature is usually about 0 to 55 ° C, so during the equipment process, this heating element is not placed in the PLC; The PLC should have adequate ventilation and ...
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Wiring of the main circuit of the inverter - Reynolds
(1) Inverter three-phase communication input terminal (R, S, T)
The power input terminal is connected to the three-phase communication power supply through the circuit breaker of the circuit breaker for line protection, regardless of the connection phase sequence. It should be noted here that the three-phase communication power supply must not be directly connected to the inverter output ...
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Applications of Reynolds frequency converters
A frequency converter is a power electronic device that can change the frequency of an AC power source to control the speed and output power of a motor. Inverters are widely used in industry, aviation, metallurgy, petroleum, chemical industry, electric power and other fields.
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Inverter composition and various functions - Reynolds
Rectifier circuit: rectify 50HZ communication power into direct current.
Frequency conversion circuit: The rectified direct current is inverted into a variable frequency communication current.
Control part: control the frequency of communication electricity output by the inverter circuit.
Maintenance circuit: maintenance and blockage of overcurrent and phase loss ...
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The difference between servo and inverter - Reynolds
Overload can be different
Servo drives generally have 3 times the overload ability, which can be used to overcome the inertial moment of the inertial load at the moment of start-up, while the frequency converter generally allows 1.5 times the overload.
Handling precision
Servo control ...
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How to deal with the inlet water of the inverter - Reynolds
Inverters are widely used in all walks of life, in a variety of applications, inverters will inevitably encounter rainy and humid climate, resulting in internal wetness, or accidentally into the water, in fact, as long as it is found in time, it can still be rescued.
If it is in the unpowered state ...
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Reynolds product range models
JJR1000系列:
JJR1011;JJR1017;JJR1022;JJR1030;JJR1037;JJR1045;JJR1055;JJR1075;JJR1090;JJR1115;JJR1132;JJR1160;JJR1200;JJR1250;JJR1 ...
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Reynolds inverter code function description
F09 second acceleration time 0.10 - 999.9sec; 5.0sec; △** The acceleration and deceleration parameters and the second acceleration and deceleration parameters are switched by terminal X3 (see F55);
F10 second deceleration time 0.10 - 999.9sec; 5.0sec; △**Acceleration and deceleration parameters and the second acceleration and deceleration parameters are switched ...
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Introducing the Reynolds JJR8000 series of intelligent soft starters
JJR8000 series of intelligent motor soft starter is the use of power electronics skills, microprocessor skills and modern control theory skills to produce today's international first-class starting equipment, the product can constrain the starting voltage of the asynchronous motor when starting, can be used in fans, water...
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Characteristics and Discrimination of Resistance Damage - Reynolds
I often see many beginners tossing on the resistor when overhauling the circuit, and it is dismantling and welding, in fact, it is repaired a lot, as long as you understand the damage characteristics of the resistor, you don't have to bother.
Resistors are the most numerous in electrical equipment ...
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The cause of overheating of servo motor bearings - Reynolds
The motor itself:
1) The inner and outer rings of the bearing are too tightly cooperated.
2) There are problems with the shape and position tolerance of parts, such as the coaxiality of parts such as machine base, end cover, shaft and other parts is not good.
3) Improper selection of bearings.
4) The bearing is not smooth or the bearing is not clean, and there are impurities in the smooth grease. ...
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Safety standards for AC drives – Reynolds
International electrical safety standards: The requirements are in line with international electrical safety standards, such as CE standards in Europe and UL specifications in United States. These specifications specify the requirements for electrical safety functions, mechanical safety functions, EMC functions, etc.
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Renault is available in a variety of product ranges
JJR1000系列:
JJR1011;JJR1017;JJR1022;JJR1030;JJR1037;JJR1045;JJR1055;JJR1075;JJR1090;JJR1115;JJR1132;JJR1160;JJR1200;JJR1250;JJR1320;JJR1400;JJR1500;JJR1600 ...
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Frequency converter soft troubleshooting – Reynolds
Undervoltage is also a problem that we often encounter in application. Mainly because the voltage of the main circuit is too low (220V series is lower than 200V, 380V series is lower than 400V), the main reason: a certain way of the rectifier bridge is damaged or there is abnormal operation in the three ways of the thyristor, which may lead to the appearance of undervoltage problems, ...
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Reynolds assisted Sinopec Weirong shale gas project
With the rapid development of China's national economy, the supply and demand situation of oil and gas resources is becoming increasingly severe, and the import of oil and gas is increasing year by year, so it is urgent to expand the field of domestic oil and gas exploration and development. Strengthening the exploration and development of shale gas resources can make up for the lack of conventional oil and gas resources and promote the sustainability of the oil and gas industry.
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Inverter installation and heat dissipation treatment - Reynolds
The inverter has power loss during operation and converts it into heat energy, which increases its own temperature. Roughly speaking, the power loss of every 1kVA inverter capacity is about 40W-50W. Therefore, when installing the inverter, it is necessary to consider the heat dissipation of the inverter, and how to run the inverter.
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Centrifugal fan inverter selection method - Renol
1. See if it is energy-saving.
When selecting equipment products, many business managers will take into account the energy-saving embodiment, which is due to the excellent energy-saving embodiment of the product, which can save a lot of money and resources.
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Reynolds JJR5000 introduction to soft starters
The cost performance of Reynolds JJR5000 soft starter is relatively high, which is mainly reflected in the following aspects:
1. The price is more reasonable: compared with other similar products, the price of Reynolds JJR5000 soft starter is more affordable, and the price is in a more advantageous position among the products of the same level.
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Advantages of frequency converters over soft start – Reynolds
(1) The starting torque is large and the power factor is high. Because the power factor of the motor is related to the working frequency, the power factor under the power frequency power supply is much lower than that under the low-frequency power supply when the motor is running at low speed. The inverter can control the motor from low frequencies and ...
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