Inverter braking resistor selection – Schneider

What problems should be paid attention to when the motor works beyond 60Hz? The following precautions should be taken when operating beyond 60Hz (1) Machinery and equipment should have sufficient potential to work at this speed (mechanical strength, noise, vibration, etc.). (2) ...

1. Determine the type and maintenance situation of Schneider circuit breaker according to the maintenance requirements of the line, and determine the selection of frame type, device type or current limiting type. Generally speaking, the short-circuit current breaking ability of Schneider frame circuit breaker is larger and larger than that of device type. Usually, the branch line chooses ...

It should be basically stored in the plate, the problem is that the plate with a fully enclosed structure is large, takes up a lot of space, and the cost is relatively high. This can be done by: (1) The planning of the disc should be based on the heat dissipation required by the actual device; (2) Profit ...

1. Logo The logo of the product is a status symbol, so it will be made very exquisitely. Schneider switches are also very careful in the production of logo, each letter is like an independent work of art, and let's see that the letter "A" is flat and wide. But the imitation ...

Schneider Electric has announced the launch of its Pacific Foundation, which will provide financial and advisory support to charitable foundations in the Pacific region to address fundamental human rights issues of access to energy. Four foundations were selected as the Foundation's initial recipients.

The Schneider NSX molded case circuit breaker has a double rotary contact construction for maintenance, and the high-end electronic trip unit allows for accurate measurement and easy communication. Schneider NSX molded case circuit breaker conforms to IEC60947-2, GB14048.2, China's CCC certification and multinational classification certification...

1. The parameters set in the host cannot be changed at will during use. In particular, the parameters of the battery pack will directly affect the service life. With the change of ambient temperature, the float charge voltage should be adjusted accordingly. Generally, 25 °C is the standard, and when the ambient temperature rises or falls by 1 °C, the float charge ...

1. Qualified after inspection When selecting a double fan inverter, it must be strictly checked for its quality. The first requirement is that it must have relevant certificates of qualified inspection, and some qualified materials must be taken out. This is the only way to ensure that this change ...

1. Use the operation method of clicking the button: In addition to the direction of travel, 2 logic inputs are required to add a speed given, e.g. LI5 is assigned the acceleration function, and LI6 is assigned the deceleration function. Then pressing LI5 will make the speed given increase, and pressing LI6 will make the speed given speed decrease ...

1. After the inverter is repaired, the power number demand is corrected, don't forget Generally, an inverter corresponds to a power number (also known as the number of horsepower), for example, a 75 kilowatt inverter is set under heavy load, and 100 kilowatts is set under light load. In this way, the customer will not use it to present ...

1. There are two ways to say the fundamental frequency: (1) The frequency corresponding to the maximum output voltage of the inverter is called the fundamental frequency; (2) When the output voltage of the inverter is equal to the additional voltage, the minimum output frequency is called the fundamental frequency. The fundamental frequency is expressed in fBA. ...

Fundamentals of magnetic flux vector manipulation The control of a three-phase asynchronous motor is much more messy than that of a DC motor because the current, voltage, induced potential, magnetic flux, etc., of the stator and rotor are all alternating. However, the stator winding of the three-phase asynchronous motor is a symmetrical three-phase winding, which exerts a ...

(1) Whether the closing condition of the isolation switch is not defective, and whether there is any failure or dislocation; (2) The porcelain insulation of the isolation switch should be free of defects, no cracks, no discharge phenomena and flashover traces; (3) Contact inspection: a. Check the contact ...

1. If the fault code presented on the Schneider inverter is AnF, it means that the load of the inverter has slipped, that is, the speed of the encoder does not match the initial value. First of all, we need to check whether the parameters of the motor are stable and the size of the load, ...

1. The control cabinet, the main engine, and the brake connection line are correct, and the voltage is correct; 2. Safety circuit, door lock circuit is normal, limit switch, speed change switch and close; 3. The connection cable from the encoder to the PG card must be reliable and accurate; ...

1. Accounting of inverter capacity when the load is continuously changed periodically In many cases, the load of the motor changes periodically. Obviously, in this case, picking the capacity of the inverter according to the minimum load will be overloaded, and it will be uneconomical to select according to the maximum load.

1. When installing and adjusting the appearance, the original status should be recorded for rehabilitation. 2. When repairing the appearance of fine instruments, if you accidentally bounce small parts away, you should first determine the direction where you can fly.

1. What are the characteristic curves of Schneider Multi9 series C120L? A: C/D curve. 2. What is the rated current level of Schneider Multi9 series C120? A: 63A, 80A, 100A, 125A. 3. Shi ...

1. What is a control loop? The network that supplies the control signal to the main circuit that supplies power to the asynchronous motor (voltage and frequency can be adjusted) is called the control loop. Second, the composition of the control loop The control circuit is controlled by the frequency ...

Inverter terminal blocks belong to a kind of connector, the variety is divided into single hole, double hole, socket, hook, etc., from the data point, copper silver plating, copper galvanized, copper, aluminum, iron, etc. Their effect is mainly to transmit electrical signals or conductive use, in the project, it is the station front engineering for the station after the project reserved for the connection ...