Power generators and electric transformers in UAE

Search of power generators and electric transformers in the UAE

A generator is a device that converts thermal energy into electrical energy. Its operation is based on the principle of electromagnetic induction—when a metallic frame rotates in a magnetic field, an electromotive force (EMF) is generated, resulting in the production of alternating electric current. A generator set consists of two main components: a power unit (engine), where the fuel is combusted to rotate the crankshaft via a crank mechanism; and the generator itself, which is designed to convert torque into electrical energy. To ensure proper functioning, the unit is equipped with a control panel, ignition and cooling systems, filters, valves, etc. Generators are used as primary, secondary, or emergency sources of electricity, whether permanent or temporary.

Classification of Generators

1. By Fuel Type:

Gasoline Generators: These utilize a carbureted internal combustion engine that operates on high-octane fuels. Gasoline generators have relatively low power compared to diesel ones but are convenient due to their compactness, lighter weight, and lower noise levels. Renting a gasoline generator is advantageous because it is cheaper, starts easily in low temperatures, and is simple to operate. Such units are well-suited for small businesses, construction crews, and country houses.

Average technical specifications for models up to 15 kW:

Specific fuel consumption: 0.3 – 0.45 kg/(kW·h);

Resource before repair (min): current 0.5 – 2.0 thousand hours, capital 6.0 – 8.0 thousand hours;

Noise level (max, L = 1 m): 80 dB.

Diesel Generators: These have a diesel internal combustion engine, with or without turbocharging. They can be single-fuel or dual-fuel. In the first case, they operate on diesel, motor, or gas turbine fuel. In the second case, motor fuel is primary, while diesel is secondary. Diesel generators are more powerful than carbureted ones and are less flammable. They are used where electricity is absent or supplied intermittently. They have a high operational lifespan and generate relatively inexpensive electricity. Renting a diesel generator is common in industries, construction, communication nodes, hotels, airports, cottages, and life support systems. They can serve as a primary, secondary, or backup source of electricity.

Average technical specifications for models up to 15 kW:

Specific fuel consumption: 0.184 – 0.22 kg/(kW·h);

Resource before repair (min): current 20.0 – 40.0 thousand hours, capital 60.0 – 100.0 thousand hours;

Noise level (max, L = 1 m): 85 dB.

Gas Generators: Ordering this type of generator is beneficial because it is environmentally friendly and uses cheaper fuel. However, these models are not very common due to their more complex design and operation, requiring highly qualified personnel for installation and maintenance. The operational lifespan of gas generators can reach up to 320 thousand hours.

2. By Operating Principle:

Synchronous Generators: The rotor rotates at the same frequency as the magnetic field of the stator. To stabilize voltage, the AVR (Automatic Voltage Regulator) controls the rotor winding current. Such generators provide constant voltage (±1%) and frequency (±2.5%) at the output and can handle threefold peak overloads. Disadvantages include:

Under heavy load, the AVR may excessively increase current strength;

Presence of brushes that require maintenance (modern brushless designs are available).

Asynchronous Generators: The rotor rotates ahead of the magnetic field of the stator, and the current strength of the rotating magnetic field is not regulated. The frequency and voltage at the output depend on the stability of the rotor's rotation, i.e., the engine's operation. Renting an asynchronous generator is cost-effective due to its lower price, simpler design, and easier maintenance. However, these units are not often used in industry because they:

Do not provide the necessary accuracy of output parameters;

Are sensitive to peak overloads;

Consume magnetizing current;

Are influenced by random factors.

Renting a generator is a convenient way to solve autonomous power supply issues for any building. This is not surprising, as electricity has become so familiar and ingrained in daily life that even minor outages can cause significant problems. Therefore, portable or stationary devices, such as home generators, can help secure daily life.

When choosing the necessary unit, consider the following points:

The conditions under which the home generator will operate;

The required power of the device;

The importance of its rotational frequency, as this should be as low as possible if it will be used frequently.

Consumers are showing significant interest in the service of renting generators of various capacities, which can be used as a backup power source. There are many different accessories available for these devices, including special control panels, monitoring devices, chargers, soundproof covers, and engine heating systems. When selecting a generator, it is essential to pay attention to the manufacturer. It is better to consider the name and reputation of the equipment manufacturer rather than the rental cost. Professionals recommend spending a little more to rent a quality unit rather than choosing a cheaper option from an unknown and risky supplier. This way, renting a generator guarantees high-quality and long-term operation of the device.

Reputable rental companies provide generators for homes and other equipment only from verified and well-known manufacturers that have undergone the necessary quality checks. The main advantage of such rentals is that during the operation of the equipment, customers do not need to worry about its technical condition, as the company's staff fully ensures and monitors its operation. In case of a breakdown, they will quickly and efficiently resolve the issue.

Where can you rent a generator?

SpecGo allows direct interaction between construction equipment owners and clients, enabling generator rentals without intermediaries. You can request the rental service for a generator and necessary construction tools from any city in the UAE; you only need to submit your application. The rental cost for a shift or per hour should be clarified with the chosen contractor from the advertisement. Verified owners, ensuring the quality of the work is not in doubt, carry out the rental of generators!