Introduction to the output frequency of the inverter - LS power generation

For example, the operating principle of voltage inverter is mainly to regulate the voltage source, and the voltage source regulates the current to achieve the role of conditioning, while the current inverter is to directly regulate the current to achieve the role of conditioning. ...

An important difference between servo and frequency conversion is that frequency conversion can be without encoder, while servo must have an encoder for electronic commutation. 1. What the two have in common: The skill of communication servo itself is the learning and application of ...

1. Energy saving The energy-saving effect of VFD is mainly manifested in the application of fans and water pumps. After the fan and pump load is selected for frequency conversion speed regulation, the power saving rate is 20% - 60%, because the actual power consumption of the fan and pump load is basically proportional to the cubic speed. When users ask for an average ...

When using an inverter, a leakage maintainer must not be used. This is a major principle of the use of frequency converters. Some users choose the corresponding leakage maintainer for the inverter when using the inverter. *The result is: the inverter moves together, the leakage maintainer acts, and the system foundation cannot be ...

1. Detection of ordinary diodes Use the MF47 multimeter to measure, connect the red and black watch pens to the two ends of the diode, read the reading, and then adjust the watch pen to measure. According to the results of two measurements, the forward resistance value of the general low-power germanium diode is 300-500Ω, and the silicon diode ...

The circuit breaker is a fundamental low-voltage electrical appliance, which has the function of overload, short circuit and undervoltage maintenance, and has the ability to maintain the line and power supply. Circuit breaker is an indispensable product in electrical safety. Due to different applications, there are molded case circuit breakers, frame circuit breakers, miniature circuit breakers, etc.

GMC-6 Contactor GMC-6 Rated voltage: 110V/22OV/380V; GMC-9 Contactor GMC-9 Rated voltage: 110V/22OV/380V; GMC-12 Contactor GMC-12 Rated voltage: 110V/22OV/380V; GMC-18 Contactor GMC-18 Rated voltage 110V/ ...

LS inverter and LG inverter are the same, there is no difference between the two. LS inverter, the full name of LS AC inverter governor, after supplying a variety of configurations, converts direct current into communication power, and changes the general power supply ...

When using inverters, leakage protectors must not be used. This is a major principle of the use of frequency converters. Some users choose the corresponding leakage protector for the inverter when using the inverter. *The result is: the inverter moves together, the leakage protector acts, and the system can't ...

1. Be "confident" It is necessary to fully understand the principles of some typical circuits and be familiar with them. Guangzhou Kewo Training Center believes that drawings are dead, and the thoughts in the head are alive, able to make analogies, able to reason, and able to touch analogies. For example, switching power supply is always inseparable from ...

Change the shutdown mode to inertia parking and you're done! In this way, after the fan is stopped, the inverter will immediately turn off the output, so that the fan can stop freely, at this time, although the fan is in the power generation situation, but the electricity generated by the fan will not pass through the inverter of the inverter to generate direct current, so the inverter will not overvoltage ...

Universal inverters are characterized by their versatility. With the development of inverter technology and the continuous expansion of market demand, general-purpose inverters are also developing in two directions: low-cost simple general-purpose LS inverters and high-performance and multi-functional general-purpose inverters. They have the following characteristics: ...

1. Auxiliary contact: the contact mechanically linked with the main circuit of the circuit breaker and the closing mechanism is mainly used for the display of the circuit breaker and the closing status, and is connected to the control circuit of the circuit breaker through the opening and closing of the circuit breaker to control or interlock its related electrical appliances. For example, output to signal lights, relays, etc.

The working principle of the power production contact is: when the contact coil is energized, the coil current generates a magnetic field, and the generated magnetic field leads the static iron core to produce electromagnetic attraction to the iron core, and drives the AC contact action, the normally closed contact is disconnected, the normally open contact is closed, and the two are connected to each other. When the coil is de-energized, the electric ...

The inverter is usually divided into 4 parts: the rectifier unit, the high-capacity capacitor, the inverter and the controller. Rectifier unit: converts alternating current with a fixed operating frequency into direct current. High Capacitance: Stores converted electrical energy. ...

1. Speak before you start When it comes to faulty electrical equipment, you should not rush into action, but ask about the passage and phenomenon of the fault. For unfamiliar equipment, you should also understand the circuit principle and structural characteristics, and follow the corresponding rules. Before dismantling, it is necessary to fully understand each ...

1. Power off the inverter and power it back on; 2. Press the FN button on BOP-2; 3. After the digital input 3, the default setting of 3 is reset to the problem; 4. Press the P button or power off, in the case of no problem; ...

Now enterprises need to use a lot of ventilator inverters, the larger the scale of the enterprise, the more production workshops, the more ventilator inverters will be used. However, no matter how large the enterprise, there is a primary ventilator inverter, the selection of this kind of inverter is very important, because if there is no ...

The contactor is an automatic switch in industrial electricity that uses a button to control its on/off. The contactor consists of an electromagnetic coil, a static armature, a moving armature, a static contact, a moving contact and a fixing bracket. The principle is that when the electromagnetic coil of the contactor is connected to the communication electricity, a strong magnetic field will be generated to make the center of the coil ...

(1) The cooperation between the circuit breaker and the circuit breaker should consider the instantaneous trip device action value of the superior circuit breaker, which should be greater than the maximum expected short-circuit current at the outlet end of the lower circuit breaker.