Universal Frequency Converter FR-E740-1.5K-CHT For Change Current
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 kg
- Supply Capability:
- 2300 kg/month
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Specification
Fr-e740-1.5k-cht is an economical and high-performance type, 3-phase 400V power
supply, and the motor capacity is * large and suitable for three standard 4-
pole motors!
Detailed parameters of fr-e740-1.5k-cht:
1. Power of fr-e740-1.5k-cht: 1.5kw
2. Current of fr-e740-1.5k-cht: 4A
3. Voltage of fr-e740-1.5k-cht: 3-phase 380 ~ 480v
4. Frequency of fr-e740-1.5k-cht: 50Hz / 60Hz
5. Allowable fluctuation range of voltage and frequency of fr-e740-1.5k-cht:
325 ~ 528v50hz / 60Hz (plus or minus 5%)
6. Power capacity of fr-e740-1.5k-cht: 4.5KVA
7. Overload capacity of fr-e740-1.5k-cht: 150% 60s, 200% 3S (inverse time
characteristic)
8. Installation dimension of fr-e740-1.5k-cht: 140mm * 150mm * 135mm
9. Approximate weight of fr-e740-1.5k-cht: 1.9kg
10. Cooling mode of fr-e740-1.5k-cht: forced air cooling
Selection method of fr-e740-1.5k-cht:
1. Fr-e740-1.5k-cht is selected according to the following load torque
characteristics and is divided into the following three categories:
(1) Constant torque load (2) Constant power load (3) Fluid load
2. Fr-e740-1.5k-cht is selected according to the control mode and is divided
into the following five categories:
(1) V / F open loop control (2) V / F closed loop control (3) Vector
control without speed sensor (4) Vector control with speed sensor (5) Direct
torque control
Fr-e740-1.5k-cht selects the protective structure according to the use and
installation environment:
The protective structure of fr-e740-1.5k-cht should adapt to its installation
environment, which requires consideration of environmental temperature,
humidity, dust, pH, corrosive gas and other factors, which is of great
significance to the long-term, stable, safe and reliable operation of fr-e740-
1.5k-cht. It is divided into the following four categories:
(1) Open type (2) Closed type (3) Sealed type (4) Closed
type
1. Select the frequency converter according to the load characteristics,
If the load is constant torque load, Siemens MMV / MDV frequency converter
shall be selected. If the load is fan and pump load, Siemens eco frequency
converter shall be selected.
2. When selecting the frequency converter, the actual motor current value shall
be used as the basis for the selection of the frequency converter, and the
rated power of the motor can only be used as a reference. In addition, it
should be fully considered that the output of the frequency converter contains
high-order harmonics, which will deteriorate the power factor and efficiency of
the motor. Therefore, the current of the motor increases by 10% and the
temperature rise increases by about 20% compared with the power frequency power
grid. Therefore, when selecting motor and frequency converter, this situation
should be taken into account and appropriate allowance should be reserved to
prevent excessive temperature rise from affecting the service life of motor.
3. If the frequency converter wants to run with a long cable, measures should
be taken to restrain the influence of the long cable on the ground coupling
capacitance to avoid insufficient output of the frequency converter. The
frequency converter shall be selected by amplifying the first gear, or the
output reactor shall be installed at the output end of the frequency converter.
Shanghai Mitsubishi fr-e740-1.5k-cht
4. When the frequency converter is used to control several motors in parallel,
the length of the motor cable and the allowable range of the frequency
converter must be considered. If the specified value is exceeded, the frequency
converter shall be selected by amplifying the first gear or the second gear. In
addition, in this case, the control mode of the frequency converter can only be
Vif control mode, and the frequency converter cannot protect the overcurrent
and overload protection of the motor. At this time, it is necessary to add a
fuse on each motor to realize the protection.
- Q: Is the laptop power adapter high temperature normal? Is there anything else?
- Normal, my power adapter is also very hot, generally ignore
- Q: Is it possible to use a different laptop's power adapter?
- See the adapter is suitable for notebook models to use, the following three conditions for reference: 1. The output voltage of the adapter is the same as that of the notebook. 2. Is the adapter's output current consistent with the notebook's requirements? (Or a little bit of the current is also not.) 3. The size of the joint is appropriate. (If the connector is too loose, will be bad, excessive fever.) For DELL and HP / Compaq and other notebook power adapter, will involve a decoding problem. Please pay attention when the pro to buy. It is said that the market is also very popular universal adapter, a friend bought a LVSUN brand universal adapter LS-PAB90-BC10, with eight joints. Adapter has a liquid crystal display, you can automatically switch the voltage, very smart, with more than a year, has also been used
- Q: How is the notebook with a power adapter?
- Refer to the following factors when purchasing: Choose the brand: The principle is to choose the same type with the brand, if not, it can only find other brands. Now online to sell a lot of notebook power adapter are cut corners of the substandard products, the normal use of what should be no problem, once the accident will burn your laptop, save dozens of pieces but burn thousands of pieces of notebook worth the candle. (Such as the actual only 19V3.42A, but the standard 19V4.74A, this will lead to a very slow charge, and even damage the battery and laptop computers. There are some protection removed, this more horrible, there Accidentally burn the laptop.
- Q: What is the working principle of high voltage electrodes and frequency converters?
- High-voltage inverter is the input power supply voltage above 3KV high-power inverter, the main voltage levels are 3000V, 3300V, 6000V, 6600V, 10000V and other voltage levels of high-voltage high-power inverter High voltage inverter from high - low - high; low - high; high - high points.
- Q: 6-pole motor, speed 8000 rpm, corresponding to the frequency converter output frequency is how much?
- Such a high speed estimated motor can not reach, to increase the gearbox Specific algorithm: n = 60f / p P is the number of pole pairs, f is the frequency. The pole pair number of the 6 pole motor is 3. F = n * p / 60 = 8000 * 3/60 = 400 Hz.
- Q: 11kw 6-pole motor can be used to adjust the inverter to 1800RPM?
- First, the inverter is no problem, I used so much to meet your needs ????? But to see if your motor can run at high speed, or whether the load is small, the power to have a general amount of redundancy. 6-pole motor synchronous speed of 1000, to meet your use to be transferred between 2000 or 1900, that is to say the frequency converter output frequency to be transferred to 90 to 100HZ. ????? Constant torque load is no problem, but the fan torque load to be a small job.
- Q: How do I select a drive? Which brand is better
- ??8, drive explosion-proof motor, the inverter is not explosion-proof structure, the inverter should be set in a dangerous place outside. ????9, the use of inverter drive gear motor, the use of the gear by the part of the lubrication part of the lubrication control. When lubricating oil is lubricated, there is no limit in the low speed range. If there is a high speed range above the rated speed, there is a risk that the lubricating oil may be used. Therefore, do not exceed the maximum speed allowable value. ????10, the inverter drive winding rotor asynchronous motor, most of the use of existing motor. Winding motor and ordinary squirrel-cage motor compared to the winding motor winding impedance is small. Therefore, it is prone to overcurrent trip due to ripple current, so a frequency converter larger than the normal capacity should be selected. General winding motor for flywheel torque more occasions, in the set acceleration and deceleration time should pay more attention.
- Q: The inverter flat rate transferred to 29, on the submersible pump to burn the coil ?!
- 4, high-speed motor: high-speed motor running process will produce a large number of harmonics, enhance the output current of the inverter, resulting in a lot of heat. Therefore, the inverter selection is also larger than the ordinary one gear. 5, explosion-proof motor: In some mines, oil extraction environment, the frequency conversion system is explosion-proof motor, the choice of inverter should use the explosion-proof function of the inverter, and the inverter placed in a safer place. 6, the degree of protection: for dust, wet applications, inverter selection should pay attention to its protection level. Or choose Ampang letter AMB inverter, the fan can also run in the water. 7, single-phase motor: When the scene using single-phase motor, the inverter useless. 8, variable pole motor: When the field using variable pole motor, the inverter selection should ensure that the maximum operating current should not exceed the rated current of the inverter
- Q: Motor a speed, the inverter will burn what is going on, the inverter is a large yuan
- Inverters Have not heard of it! East yuan heard. The inverter is most likely to be damaged by the motor is running suddenly grounded, the possibility of frying the module more than eighty percent, since a little better brand will blow up! Overload, overcurrent, short circuit, lack of phase caused by damage to the inverter, then the quality of the inverter is so good, and indeed the basic functions of these inverter protection.
- Q: Quartet of the TA, TC terminals have positive and negative?
- There is no positive and negative, this is the relay output
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Universal Frequency Converter FR-E740-1.5K-CHT For Change Current
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 kg
- Supply Capability:
- 2300 kg/month
OKorder Service Pledge
OKorder Financial Service
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