Frequently Asked Questions about Generators

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What is Generator?

A generator is an electrical machine that converts a form of energy (mechanical energy) into electric power. It provides an electric source during a power outage to avoid disrupting daily activities or business operations.

What are the Common Types of Generators?

There are several types of generators in the Philippines, namely:


Whole House

Also called a standby generator, this generator connects to an in-house electrical system and a fuel source, such as natural gas or propane, to keep all appliances running during a power outage.


Portable Generator

A portable generator is a gasoline- or diesel-powered device that is small in size but has a variety of applications and is more cost-effective than a whole-house generator.


Inverter Generator

This generator adjusts its engine speed automatically, reduces noise and emission levels, and produces clean energy.


Gasoline Generator

This is the most prevalent type of generator, which uses a gasoline engine to power light appliances and tools.


Diesel Generator

A diesel generator is more fuel-efficient, robust, and durable than a gasoline generator due to its low burning temperature.

How Much Does a Generator Cost?

The price of a generator varies depending on its size, model, wattage output, engine speed, manufacturer and installation process.

Why Do I Need a Generator Set?

Most people invest in generator sets for the following reasons:


  • No access to mains electricity
  • Insufficient mains supply
  • Protection against potential power losses

What Do I Need to Know When Installing a Generator Set?

Consider the following factors before installing a generator set in the Philippines:



Ensure that the generator set is placed in an area with proper lighting and access for service and repairs.



Generator sets should be placed on a level base with anti-vibration mounts if necessary.


Ventilation and Cooling

The generator needs sufficient ventilation for adequate cooling and to reduce heat and fumes from combustion.


Fuel System

It comes in many options, including manual pumps and fully automatic systems.

What is a Transfer Switch?

A transfer switch is an electronic panel connected to the electrical distribution system that enables generators to work. It prevents the generator from back-feeding into the power supply, which results in injuries to line workers.

Will a Generator Be Noisy?

Most generators emit intense buzzing or mechanical noise because of their exhaust, engine, and airflow.

Can You Run a Generator 24 Hours a Day?

A gas-powered generator typically runs for several hours or even 24 hours, while a portable generator has a large fuel capacity that can last for a number of days.

How Long Do Generators Last?

A generator will operate for as long as fuel is available, although it can supply power to a residence for an average of 3,000 hours.

What is the Warranty Cover on Generator Sets?

Generators are covered by a two-year warranty, limited to 500 hours per year following installation and any failure that results from defects in the unit’s design.

What Happens If I Overload a Generator?

When a generator becomes overloaded, the following may occur:


  • Overheating of internal components, like the coolant system and alternator windings
  • Intermittent power output
  • Low oil pressure due to reduced viscosity
  • Shortening of the generator’s lifespan

What Happens If I Underload a Generator?

Underloaded generators may fail to reach their peak operating temperature, causing the burnt oil to be heated and form a lacquer on the cylinder liners.

Can a Generator Set Be Used During Adverse Weather Conditions?

Generator sets are well-designed to withstand harsh environments and adverse weather conditions. Shielding of components is required to prevent shorts and corrosion.

When and How Do I Service and Maintain My Generator Set?

A generator set’s maintenance requirements depend on some factors, including its usage, the environment, and the load it carries. Check the generator frequently or consult with a provider for repairs.

Looking for a generator for sale in the Philippines? Check out ALTA Maxpower Co. Inc., a leading manufacturer of mid-range power generators. We also offer rental generators on a short-term or long-term basis, depending on the client’s needs. For more information about our products and services, contact us at (02) 8844 3476 or at [email protected].

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