50 Hertz (Hz)

What is 50 Hertz?

50 Hertz (Hz) means the rotor of the generator turns 50 cycles per second, the current changes 50 times per second back and forth, direction changes 100 times. That means the voltage changes from positive to negative, and from negative to positive voltage, this process converts 50 times/second. The electricity 380V AC and 220V AC, are both 50 Hz frequencies.

50Hz Frequency Converter

The speed of 50 Hertz 2 poles synchronous generator is 3000rpm. AC power frequency is determined by the pole number of the generator p and speed n, Hz = p*n/120. The grid standard frequency is 50Hz, which is a constant value. For a 2-pole motor, the speed n = 50 * 120 / 2 = 3000rpm; for a 4-pole motor, the speed n = 50 * 120 / 4 = 1500rpm.

Why use 50 Hertz?
When the frequency increases, the copper and steel consumptions of the generator and transformer decrease, along with the reduction of weight and cost, but will make the inductances of the electrical equipment and transmission line increase, reduce the capacitances and increase losses, thereby reduce the transmission efficiency. If the frequency is too low, the electrical equipment's materials will increase, along with heavy and high cost, and will make lights flashing obviously. Practices have proved using 50Hz, 60Hz frequencies are appropriate.

Can a 50 Hertz motor run on 60 Hertz?

Since the formula for governing the synchronous speed of a three-phase motor is n = (120 * Hz)/p if this is a 4-pole motor then at 50 Hertz the speed would be 1500 RPM whereas at 60 Hertz the speed would be 1800 RPM. Since motors are constant torque machines then by applying the formula that HP = (torque*n)/5252 then you can see that with a 20% increase in speed the motor would also then be able to produce 20% more horsepower. The motor would be able to produce rated torque at both 50/60 Hertz frequencies only apply if the V/Hz ratio is constant, meaning that at 50Hz the supply voltage would need to be 380V and at 60Hz the supply voltage would need to be 460V. In both cases the V/Hz ratio is 7.6V/Hz.

I used to set a 50 Hz three phase motor to run on 60 Hz power supply many times per year, using frequency converters capable of full motor speed regulation. Use a 20% factor across the board in the programming.

For example, a motor at 1 hp, 50 Hz, 400V AC, set the motor Hertz in the frequency converter to 60Hz, then the motor voltage to 480V AC. This will increase the motor output to approx. 1.2 hp, with a corresponding increase in torque. Setting the motor speed (RPM) using the 20% factor is also essential. For example, if the motor speed at 50 Hertz is 1,400 RPM, dividing the RPM total by 0.8, results in a quotient of 1,750 RPM. By affording this balance of the Volts/Hz/RPM ratio, the motor design criteria is very closely matched in the conversion.

Where is 50 Hertz being used?

Country Hertz Voltage
1 Phase 3 Phase
Afghanistan 50 Hz 220V 220/380V
Algeria 50 Hz 127/220V 220/380V
Angola 50 Hz 220V 220/380V
Antiqua 50 Hz 230V 230/400V
Argentina 50 Hz 220V 220/380V
Australia 50 Hz 240V 240/415V
Austria 50 Hz 220V 220/380V
Bahrain 50 Hz 110/230V  
Bangladesh 50 Hz 230V 230/400V
Barbados 50 Hz 110/200V 120/208V
Belgium 50 Hz 127/220V 220/380V
Bolivia 50 Hz 115/230V 220/380V
Brazil 50/60 Hz 127/220V 220/380V
Bulgaria 50 Hz 220V 220/380V
Burma 50 Hz 230V 230/440V
Cameroon 50 Hz 220V 220/380V
China 50 Hz 220V 220/380V
Congo 50 Hz 220V 220/380V
Cyprus 50 Hz 240V 240/415V
Czech 50 Hz 220V 220/380V
Danmark 50 Hz 220V 220/380V
Egypt 50 Hz 220V 220/380V
Equatorial Guinea 50 Hz 220V  
Faeroe Islands 50 Hz 220V 220/380V
Fiji 50 Hz 240V 240/415V
Finland 50 Hz 220V 220/380V
France 50 Hz 220/127 220/380V
Gabon 50 Hz 220V 220/380V
Gambia 50 Hz 230V 230/400V
Germany 50 Hz 230V 220/380V
Ghana 50 Hz 220V 220/400V
Gibraltar 50 Hz 240V 240/415V
Greece 50 Hz 220V 220/380V
Guinea 50 Hz 220V 220/240V
Guiana 50 Hz 110/220V 220V
Hong Kong 50 Hz 220V 200/346V
Hungary 50 Hz 220V 220/380V
Ice Land 50 Hz 220V 220/380V
India 50 Hz 230V 220/380V
Indonesia 50 Hz 127/200V 220/380V
Iran 50 Hz 110/220V 220/380V
Iraq 50 Hz 220V 220/380V
Ireland 50 Hz 220V 220/380V
Israel 50 Hz 230V 230/400V
Italy 50 Hz 127/220V 220/380V
Jamaica 50 Hz 100/220V 220V
Japan 50/60 Hz 110/220V 220V
Jordan 50 Hz 220V 220/380V
Kuwait 50 Hz 220V 220/380V
Country Hertz Voltage
1 Phase 3 Phase
Lebanon 50 Hz 110/190V 220/380V
Libya 50 Hz 127/220V 220/230V
Luxembourg 50 Hz 120/208 220/380V
Macao 50 Hz 115/220V 220/380V
Majorca Island 50 Hz 127/220V 220/380V
Malagasy Rep. 50 Hz 127/220V 220/380V
Malaysia 50 Hz 115/240 240/415V
Mali 50 Hz 220V 220/380V
Malta 50 Hz 240V 240/415V
Mauritania 50 Hz 220V 220V
Mauritius 50 Hz 230V 230/400V
Mexico 50/60 Hz 110/220V 208/220V
Monaco 50 Hz 127/220V 220/380V
Morocco 50 Hz 220V 220/380V
Mozambique 50 Hz 220V 220/380V
Nepal 50 Hz 230V 230/440V
Netherlands 50 Hz 220V 220/380V
New Zealand 50 Hz 230V 220/380V
Oman 50 Hz 220V 220/440V
Pakistan 50 Hz 230V 230/400V
Paraguay 50 Hz 220V 220V
Poland 50 Hz 220V 220/380V
Portugal 50 Hz 220V 220/380V
Saudi Arabia 50/60 Hz 127/220V 220/380V
Scotland 50 Hz 240V 240/415V
Senegal 50 Hz 120/220V 220V
Singapore 50 Hz 115/230V 230V
Somalia 50 Hz 110/220V 220/380V
South Africa 50 Hz 220/230 220/380V
Spain 50 Hz 127/220 220/380V
Sri Lanka 50 Hz 230V 230/400V
Sudan 50 Hz 240V 240/415V
Sweden 50 Hz 220V 220/380V
Switzer land 50 Hz 220V 220/380V
Tanzania 50 Hz 230V 230/400V
Thailand 50 Hz 220V 220/380V
Tonga 50 Hz 240V 240/415V
Tunisia 50 Hz 127/220V 220/380V
Turkey 50 Hz 115/220V 220/380V
Uganda 50 Hz 240V 240/415V
Russia 50 Hz 127/220V 220V
United Kingdom 50 Hz 240V 240/415V
Uruguay 50 Hz 220V 220V
Viet-Nam 50 Hz 127/220V 220/380V
Western Samoa 50 Hz 230V 230/400V
Yugoslavia 50 Hz 220V 220/380V
Zambia 50 Hz 220V 220/380V

Why use a 50 Hertz to 60 Hertz Converter?

50 hertz to 60 hertz frequency converter Case 1: When you travel or move from one country (50 Hertz, e.g. UK, UAE, Malaysia) to another (60 Hertz, e.g. USA, Philippines, Peru), and bring some 50 Hertz electric appliances which are not compatible with running on 60 Hertz, or sometimes we just buy a device which is only available for 50 Hertz power system, in such cases, we need a 50 Hertz to 60 Hertz frequency converter to convert Hertz (or vice).

Case 2: Some multination enterprises make electrical home appliances, industrial machines outside the selling market countries, e.g. a Canada enterprise making an electric device in India (50 Hertz) and tend to sell the products in USA, Canada (60 Hertz), or a Australia (50 Hertz) enterprise exports electrical appliances to US, Philippines, the company will need a 50 Hertz to 60 Hertz converter (or 60 Hertz to 50 Hertz) to test the appliances' operation compatibility under expected Hertz.

There are much more cases we need to convert 50 Hertz to 60 Hertz, or from 60 Hertz to 50 Hertz, in case you are interesting to get one, just shopping on GoHz.com, we are selling:
Single phase frequency converters, generally for home appliances;
Three phase frequency converters, generally for industrial equipments.