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50Hz 60Hz

What does a frequency converter do?

Tuesday, June 28, 2022

Frequency Converter is an electronic device to convert fixed frequency (50Hz / 60Hz), fixed voltage (110/120V, 208-240V, 380V-480V, and customized voltages) to variable frequency (50 Hertz, 60 Hertz or 400 Hertz adjustable) and variable voltage to compatible with different countries' power system, in order to protect the electric appliances from damage while running them on different frequency power systems.

Here list some cases that we got from our customers, which have been solve ...

10 steps to ensure quality of 3-phase frequency converter

Friday, November 23, 2018

High quality power supplies are essential in the R&D and production lines of electrical and electronic manufacturing companies, a frequency converter can simulate worldwide electric power (50Hz 60Hz) to test the appliances/machines work in their perfect circumstance. GoHz adopts a series of quality inspection steps to ensure the quality of frequency converter after manufacturing, here we will show you 10 steps to test the frequency converter.

Step.1 Power on ...

10-20kVA 3-phase Frequency Converter Troubleshooting

Thursday, October 4, 2018

50Hz and 60Hz power supplies are common used in daily life and industrial machines, most of countries are using either 50Hz or 60Hz, and lots of industrial machines/home appliances are running on either 50Hz or 60Hz, not compatible with both frequency, hence, a device that can change between 50Hz and 60Hz is necessary in global business. then GoHz frequency converter comes, it's a specialized device to convert between 50Hz and 60Hz to make the appliance work at its rated frequency among diffe ...

Does 50Hz or 60Hz Frequency Effect on Motor Resistance?

Sunday, February 12, 2017

Assume that when you changed the frequency from 50 to 60 Hz that you mean the rated frequency but you then ran the motor at the same speed. By doing this you have altered the motor set up calculations that could have changed two items giving a different resistance.

The first is that the slip speed would be different that gives different equivalent rotor resistance values when referred to the stator. The equation is actual rotor resistance / slip. The other is that the skin effect f ...

Why we use 50Hz, 60Hz or 400Hz frequency?

Thursday, January 12, 2017

Why the frequency of power supplies in European and Asian countries is 50Hz, while American countries use 60Hz power supplies? What is the basic of the standard? What are the advantages and disadvantages of 50Hz and 60Hz power supply? In addition, why the airport and aircraft use 400Hz frequency?

In fact, there is no big difference between 50Hz and 60Hz, only the generator speed has slightly difference. Ch ...

Can I run a 3ph 120/208v 60Hz motor on 230/400v 50Hz?

Sunday, December 25, 2016

Depending on your local electrical code, if you need a grounded (earthed) system, you can use a 400V-Delta to 208/120V WYE transformer to feed a variable frequency drive (VFD), and then set it a 60Hz to supply 208V 60Hz to the motor. Although I do not normally recommend it, if it is appropriate for you to run the system ungrounded (unearthed), then you can feed the VFD with through a 400V-Delta to 230V-Delta transformer and then supply the motor with 230V 60Hz power from the VFD. (As with mos ...

Under Frequency Operation of Power System

Saturday, October 29, 2016

An established grid operating at a certain frequency (say 60 Hz) would have a certain inertia associated with this particular frequency. Given that it's possible to instantaneously drop the system frequency without losing sync, then, if we operate at a lower frequency, can we get some extra power injected to the system?

The grid standard for power quality dictates the frequency deviations allowable. Keep in mind that some electrical equipment are frequency sensitive. On the other h ...

Instruction of GoHz Frequency Converter Remote Controlled by PLC

Sunday, October 9, 2016

While switch to "self-control", all of the output parameters are controlled by the frequency converter, at the moment, all external controls are inoperative;

While switch to "external PLC control", the keyboard of the frequency converter is inoperative, all control commands are transmitted by external PLC, refer to following instru ...

Over Frequency Protection of Grid Connected Generator

Monday, October 3, 2016

Most generator designers use either IEC or NEMA as guidelines; the specific choice of which is applicable is often made by the end user (or at least the one purchasing the equipment). Both of these entities specify "normal" operation as falling within a set range of voltage, frequency, and a combination of both.

Normal operation occurs when ALL of the following are true.
(0.90 PU Volts < operating line voltage < 1.10 PU volts)
(0.95 PU Hertz < operating line freq ...

Limitations of increasing motor speed

Monday, September 19, 2016

The normal frequency in Australia is 50 Hz and a client of mine runs his compressor motors up to 60 Hz which gives him greater output. But he only gets away with it because the machines are from the United States and are rated to operate at 60 Hz. Be careful because there could be a significant increase in power at the higher speeds in 60Hz.

Before you attempt to do this verify with the compressor motor manufacturer if you motor is VFD rate ...

Why different countries have different voltage?

Friday, May 20, 2016

Why voltage in some countries is 220V (208V, 230V, 240V) and 110V (100V, 120V) in some countries? Why can't we have the same Voltage and what are the Pros & Cons of using 110 V or 220 V in their Respective regions?

110V or 220V, Each system has its own advantages and disadvantages, so each country before designing a system Engineers sat down agreed on factors and concluded on which system to use taking in account:
Their ...

Something about 120v 60Hz US, 240v 50Hz UK

Tuesday, February 9, 2016

The people have described the single phase 120/240v system that is used in the USA, Canada, and Mexico, with the center-taped transformer. Japan uses a similar system but the voltage is lower: 100/200v. Most North America appliances work in Japan. Commercial and industrial systems in the USA run on three phase 208Y/120v or 480Y/277v. Canada uses higher voltage, typically 600/347v. These are all 60 Hz frequency.

Most of the rest of the world ...

Can a 50Hz single phase motor run on 60Hz?

Thursday, October 15, 2015

The question was directed to single phase motor which it is surmised to be of induction type. Depending on the load characteristics, your motor could stall or overheat (or simply not start) if the frequency is not the one it was designed for at a given load. Three phase motor is not exactly the same as a single phase motor in speed-torque characteristics. Single phase motors are meticulously designed to have start-up torque through shaded pole or capacitor, etc. They can handle certain loads ...

50Hz or 60Hz? Keep the same V/Hz ratio

Wednesday, October 7, 2015

Failure to balance the V/Hz ratio with 400V/50Hz motors in the US, to accommodate for the widely varying voltage levels in all of the sectional grids across the country results in significant starting torque and HP losses. Variable Frequency Drives (VFDs) capable of full motor voltage/Hz/RPM/FLA levels are the very best option for use of these motor types.

The overall power grid across the US was created over 100 years ago, and though it has of course been expanded across the enti ...

Difference between Resonance and Natural Frequency

Saturday, August 29, 2015

If you have an electrical circuit consisting of a capacitor (capacitance C) and an inductive coil (inductance L) and you load the capacitor, you will observe a sin-wave oscillation in this circuit as soon as you remove the supply. Caused by the losses, the amplitude of the oscillation will decrease with every cycle. The frequency of the oscillation is the natural frequency of this circuit and is given by 2*π*f=1/sqrt(L*C).

If you connect a frequency variable supply (exciter) in ...

Does motor output constant power at 50Hz and 60Hz?

Saturday, August 8, 2015

I require urgently 75 hp motor which should be compactible for both 50Hz/60Hz, I'm very much confused as frequency changes speed will change but I'm wondering how the power rating of the motor remain same in practical power must vary but manufacturer claims power remains constant? Is it possible?

A: It is possible for a motor to deliver the same power output at 50Hz ...

Why motor, generator and transformer are designed for 50Hz or 60Hz?

Monday, July 27, 2015

In very general terms the silicon-iron magnetic cores of motors, generators, and transformers get smaller as the frequency they operate at gets higher. This of course assuming the energy delivered at the output of both cases is the same. Because of this, when you have 50 Hz core in a motor, generator or transformer, this core will generally bigger and heavier (more silicon-iron). This is because it needs to have more magnetic mass in order to be able to accommodate the extra volume of magneti ...

Why higher frequency is used rather than 50Hz & 60Hz?

Saturday, July 18, 2015

The earliest proponent of alternating current (AC), Thomas Edison pushed direct current. If I remember my history right, 60Hz was a frequency that would produce no visible lamp flicker. There were (and still remain) 25Hz, 50Hz, 133Hz, & 400Hz power systems.

The initial investment in one frequency, early power generators (hydro i.e. low frequency) would have made sudden changes to be very costly. But some of the reasons are to do with lig ...

Can a 50Hz machine work on 60Hz power system?

Wednesday, July 8, 2015

Electrical machines designed for 50Hz can usually work safely in 60Hz power supply, but not applicable to 60Hz machines to be run in 50Hz power supply. This is because impedance of 50Hz machines increases if operate in 60Hz supply which also lowers the running ampere, while if 60Hz machine run in 50Hz power system will experience increase in running ampere & overheating that will result to reduced life expectancy of the equipment. In motors coupled to water pumps or compressors increase o ...

Why the power supply frequency is 50Hz or 60Hz?

Sunday, June 28, 2015

Why not a 59 Hz? I prefer a prime number. If I were J.P. Morgan, I'd like to make Tesla have such a cool frequency. Or US yields to 55 Hz, and Germany get a 5 Hz bonus.
In the true world, a wide range of frequency for electrical machine could work economically, but in a real world, people make the standard, and 60 Hz simplified, e.g. the calculation. I guess Nikola Tesla had more common sense than I have. However, if I were born 100 years earlier ...