When the ballast for fluorescent lamps (LL) fails, the lighting device ceases to function correctly. It can only be returned to normal mode by quickly replacing a damaged element with a working one.
You can buy the item in a specialized store, the main thing is to choose the correct modification module. Our article is devoted to the solution of this issue.
We will tell you what ballast is, what tasks it performs in the operation of a fluorescent lamp. We give a detailed classification, as well as describe the specifics of the functioning and application of different modules. We will help you choose the right ballast taking into account the parameters of the lamp and the company of the manufacturer of the control device.
Features of connecting LL to the network
A fluorescent lamp is a practical and economical module designed for organizing lighting systems in domestic, industrial and technical rooms.
The only difficulty is that it is not possible to directly connect the device to centralized power supply communications.
Electromagnetic ballast consumes about 25% of the power of the lighting device, thus reducing its efficiency and efficiency level by a quarter
This is due to the fact that the creation of a stable activating discharge in fluorescent lamps and the subsequent limitation of the increasing current require the organization of some specific physical conditions. These problems are solved by installing a ballast device.
What is ballast?
Ballast is a device that regulates starting functions and connects fluorescent lighting devices to electrical communications.
It is used to maintain the correct operating mode and effectively limit the operating current.
It acquires increased relevance when there is insufficient electric load in the network and there is no necessary limitation when current is consumed.
The general principle of the element
Inside fluorescent lamps there is an electrically conductive gas medium with negative resistance. This is manifested in the fact that with increasing current between the electrodes, the voltage decreases significantly.
Compensates for this moment and ensures the correct operation of the lighting device, which is connected to the ballast control system.
When a large amount of current is supplied to any luminescent device, it can fail. To prevent this from happening, the ballast, acting as a converter, is included in the lamp design
He also increases the overall voltage for a brief period and helps the luminescents to ignite when the resource is not enough for this in the central network. Additional functions of the module vary depending on its design features and type of execution.
Varieties and characteristics of ballasts
Today, electromagnetic and electronic ballast devices are most widely distributed. They work reliably and provide long correct functioning and comfortable operation of all types of fluorescent lamps. They have the same general principle of operation, but differ somewhat in their individual capabilities.
Features of electromagnetic products
Electromagnetic ballasts are used for lamps connected to the mains using a starter.
The voltage supply in this embodiment is accompanied by a discharge, followed by intense heating and short circuit of the bimetallic electrode elements.
Electromagnetic ballast from electronic differs even in appearance. The first has a more massive, high design, and the second is an elongated thin board on which all the working elements are located
At the moment when the starter electrodes are shorted, the operating current increases sharply. This is due to the limitation of the maximum resistance of the choke coil.
After the starter is completely cooled, the bimetallic electrodes open.
If the starter fails in the design of the electromagnetic ballast, a false start appears in the operation of the luminescent. At the same time, at the moment of switching on and immediately before full ignition, the lamp flashes 3-4 times and only then starts to burn. This leads to the consumption of excess energy and significantly reduces the total working life of the light source
When the luminescent circuit is opened by the starter, an active high-voltage pulse is immediately generated in the induction coil and the lighting device is ignited.
The advantages of the device include:
- high level of reliability, proven by time;
- operational comfort of the electromagnetic module;
- ease of assembly;
- reasonable price, making the product attractive for manufacturers of light sources and consumers.
In addition to the positive aspects, users note an extensive list of disadvantages that spoil the overall impression of the device.
Among them are noted such positions as:
- the presence of the gating effect, in which the lamp flickers with a frequency of 50 Hz and causes an increase in the level of fatigue in a person - this significantly reduces performance, especially when the lighting device is located in a working or training room;
- the longer time required to start the lighting fixture - from 2-3 seconds at the beginning and up to 5-8 by the middle-end of the operating period;
- an audible specific hum of a throttle device;
- increased electricity consumption, entailing an inevitable increase in utility bills;
- low reliability of the starter element;
- bulkiness of the structure and its significant weight.
When buying, all these conditions must be taken into account in order to understand what it will cost in the future to operate a household lighting system equipped with luminescent light.
Electronic ballast modules
Electronic ballast is used for the same purpose as the electromagnetic module. However, structurally and by the principle of the performance of their duties, these devices differ significantly from each other.
Cheap electronic ballast, has a simple oscillator circuit with a transformer and a base output stage, operating on bipolar transistors. The big minus of these devices is the lack of protection from abnormal operating modes
Wide popularity for products came in the early 90's. At this time, they began to be used in combination with a variety of light sources.
Initially, manufacturers compensated for the high cost compared with electromagnetic products by the good efficiency of the devices and other useful characteristics and properties.
The use of electronic ballasts made it possible to reduce the total consumption of electric energy by 20-30%, while preserving the saturation, power, and light flux in full.
This effect was achieved by increasing the base light output of the lamp itself at an increased frequency and significantly higher efficiency of electronic modules compared to electromagnetic ones.
The most vulnerable elements of the electronic ballast are the fuse (1), capacitor (2) and transistors (3). It is they who usually fail for various objective reasons and render the lamp inoperative
A soft start and a gentle operating mode made it possible to almost half-extend the luminescent life, thereby lowering the overall operating costs of the lighting system. Lamps needed to be changed much less frequently, and the need for starters disappeared altogether.
In addition, with the help of electronic ballasts, it was possible to get rid of working background noises and pronounced annoying flicker, while at the same time achieving stable and uniform illumination of rooms even with voltage fluctuations in the network within 200-250 V.
So that the fluorescent lamp does not buzz and does not flicker, it is necessary to power it only with a high-frequency current of 20 kHz or more. To accomplish this task, a rectifier, an RF high-voltage generator and a ballast playing the role of a switching power supply should be included in the switching circuit
Additionally, it became possible to control the brightness of the lamp, adjusting the light flux to the individual desires and needs of the user.
Among the main advantages of the products, the following criteria stood out:
- light weight and compact design;
- almost instantaneous, very smooth inclusion, without exerting excessive load on the fluorescent lamp;
- complete absence of blinking visible to the eye and distinguishable noise effect;
- high power factor of 0.95;
- direct saving of electric current in the amount of 22% - the electronic module is practically not heated in comparison with the electromagnetic one and does not consume unnecessary resource;
- additional protection mounted in the unit to ensure a high level of fire safety, and to reduce potential risks that arise during operation;
- significantly increased luminescent service life;
- light flow with good color density, without differences, even with prolonged burning does not provoke eye fatigue of people in the room;
- high efficiency of the functioning of the lighting device at negative temperature indicators;
- the ability of the ballast to automatically adapt to the parameters of the lamp, thus creating an optimal mode of operation for itself and the lighting device.
Some manufacturers complete their electronic ballasts with a special fuse. It protects devices from voltage surges, fluctuations in the central network and erroneous activation of the lamp without a lamp.
Today, labor protection authorities recommend, in order to improve working conditions and increase productivity, equip fluorescent lamps installed in office premises with electronic rather than electromagnetic starting devices
Of the minuses of electronic products, usually only the cost is mentioned, which is much higher compared to electromagnetic modules. However, this may only matter at the time of purchase.
In the future, in the process of intensive operation, the electronic ballast will fully work out its price and will even begin to bring benefits, seriously saving electrical resource and removing some of the load from the light source.
Ballasts for compact lamps
Compact fluorescent lamps are devices similar to traditional incandescent lamps with a threaded socket E14 and E27.
They can be placed in modern and rare chandeliers, sconces, floor lamps and other lighting fixtures.
Due to the design features of compact luminescents, increased requirements are imposed on the electronic "filling". Brands always take them into account in production, and unknown manufacturers, in order to reduce the cost, change many elements to simpler ones. This significantly reduces module efficiency and life.
Instruments of this class are usually equipped with a progressive electronic ballast, which is built directly into the internal structure and is usually located on the board of the lamp product.
What to look for when choosing
When choosing a ballast for a fluorescent lamp, it is first necessary to pay attention to such a parameter as the module power.
It must fully coincide with the power of the lighting device, otherwise the lamp simply will not be able to fully function and give out a light stream in the required mode.
It is strictly forbidden to include ballast in the network without load. The device may burn out immediately and will have to be repaired or buy a new one
Next, you need to determine which ballast is required to be purchased. The price is more beneficial electromagnetic elements. Their cost is low and there are usually no difficulties with installation.
True, such devices are considered obsolete, have bulky dimensions and consume additional energy. This significantly reduces their attractiveness, even despite the affordable initial price.
To check the operability of electronic ballast, a special measuring device is useful - a pocket oscilloscope
Electronic devices are much more expensive. Especially this item applies to products produced by cool brand manufacturers. But their price is more than offset by energy efficiency, practicality, flawless assembly and a high level of overall instrument quality.
Ballast selection by manufacturer
A manufacturing plant is another significant criterion for a purchase. Do not focus solely on price and purchase the cheapest model from all that is offered in the store.
Features of branded ballasts
An unnamed Chinese-made product can fail very quickly and cause subsequent problems with the operation of the bulb itself and even the lamp.
Brand manufacturers complete ballasts with high-quality, wear-resistant parts that ensure the correct operation of the module throughout the entire operational period
It is better to give preference to brands with a reliable reputation, which have proven themselves to be long-term work in the market of lighting equipment and related items.
Such devices will reliably work out the entire prescribed period, ensuring the full functioning of the luminescent in any lighting device.
Ballast products manufactured at enterprises of popular brands specializing in the manufacture of electrical equipment and related components have a strong and durable outer casing of a heat-resistant, deformable plastic composition.
The marking degree of protection IP2 on the products indicates that the device has a good level of general protection and is protected against foreign parts larger than 12.5 mm from entering the box.
The operation of the device is comfortable and absolutely safe. The design completely eliminates the possibility of user contact with conductive elements.
Ballast modules with IP2 marking are reliable, practical and convenient for domestic use, however, they are vulnerable to dust penetration. Because of this small minus, putting them in lamps illuminating dusty workrooms is not practical
The normal temperature range for effective and continuous operation of the device is quite wide.
Brand ballasts cope with the tasks in cold weather, reaching -20 ° C and feel great on hot days, when the air heats up to + 40 ° C.
The best manufacturers of electromagnetic devices
Brand-name electromagnetic ballast devices are very popular with customers. E.Next.
This is due to the fact that the company offers truly high-quality, reliable and progressive modules made at the highest level in strict accordance with the requirements for equipment of this class.
In addition to warranties and service, E.Next offers customers custom technical support through call centers.By calling there, the consumer can ask the operator a question of any complexity and within a few minutes get a professional, understandable answer
The company gives a company guarantee on all products and offers customers high-quality service at all stages of cooperation.
No less in demand are electromagnetic ballasts created by the well-known and respected European manufacturer of electrical equipment and related components - the company Philips.
Products of this brand are considered one of the highest quality, reliable and effective.
Philips electromagnetic modules are on the market in the widest range. Choosing the right option for a lamp of any configuration will not be difficult
Philips ballasts help to save energy and neutralize the load that occurs during the operation of fluorescent lamps.
Actual electronic modules
Electronic products belong to the modern type of equipment and, in addition to traditional ones, also have additional functions. In this segment, the leading position is occupied by goods from a German company Osram.
Their cost is slightly higher than that of Chinese or domestic counterparts, but significantly lower compared to competitors such as Philips and Vossloh-schwabe.
Osram electronic ballasts have a number of advantages. They have a neat shape and modest dimensions, can operate in a temperature regime of -15 ... + 50 ° C and serve reliably for 100,000 hours
Among the budget branded modules, electronic ballasts stand out from the competition Horos.
Despite their loyal cost, these items demonstrate high working efficiency and a good level of efficiency, eliminate the delay during ignition, minimize energy consumption and increase the light output of the lamp itself.
Using these tools, you can eliminate annoying flickering in fluorescent lamps and make lighting devices as convenient and operational-comfortable as possible.
A young, promisingly developing company does not lag behind the venerable market old-timers. Feron. It offers users European-level products at a very small, reasonable price.
Feron ballasts are tidy. All parts have certificates of conformity. The outer case, made of plastic, is an elongated flat rectangle. The product weighs little and is easily mounted in fluorescent light sources of any configuration
Feron's ballast-type devices protect lamps from unexpected electromechanical interference and power surges, eliminate flickering irritating to the eyes, and help save more than 30% of electrical energy.
Feron ballast controlled luminescence turns on / off instantly. No background sound effect is observed during operation. Lighting is soft, even and creates a pleasant, calm atmosphere around.
How an electronic device works in a fluorescent lamp. Detailed description of the device and the principle of operation of the product:
What is the difference between electromagnetic and electronic ballasts. Features of each of the modules and specific nuances of their use in household lighting fixtures:
Features of the work of lamps equipped with ballasts of different types. Which elements are more effective and why. Practical recommendations and useful tips from the personal experience of the wizard:
To choose the right ballast for household fluorescent lamps, you need to know how this element is arranged and what function it performs. Having such information, as well as understanding the varieties of the device, it will be possible to acquire the necessary modification without any difficulties.
The cost of the module depends on the manufacturer, but even branded products have a quite loyal price and do not harm the budget of the average consumer.
Have experience choosing and replacing ballast in a fluorescent lamp? Please tell your readers which module you prefer and whether you are happy with the purchase. Comment on the publication and participate in discussions. The feedback block is located below.