Showing posts with label a. Show all posts
Showing posts with label a. Show all posts
Friday, March 27, 2015
How to Make a Homemade Earth Leakage Circuit Breaker ELCB Unit Using IC 324
An earth leakage circuit breaker is a safety electrical device used for monitoring current leakages through the “earthing” terminal and switching OFF the mains when this leakage exceeds a certain dangerous level.
Normally electromechanical concepts are employed for making these devices, however here we will see how an ELCB can be made by using ordinary electronic components; we will also see why an electronic counterpart is more efficient than the commercial electromechanical units.
There are three versions through an electronic ELCB can be made, the first uses a relay for the switching actions, the second idea incorporate a Triac and the third concept employs a SSR or a solid state relay for the required implementations.
For all the above concepts, the triggering feature remains the same, through an input inductor stage.
ELCB Circuit Using Relay
Looking at the figure we can see that the entire circuit is concentrated around a single Opamp from the IC 324. The op amp is configured as a high gain inverting amplifier.
The op amp is configured as a high gain AC amplifier and its sensitivity can be adjusted by varying the value of R2, increasing its value increase the sensitivity of the circuit.
Any minute AC signal that may be present at the inverting input #2 of the IC is picked via the coupling capacitor C1 and instantly amplified by the IC.
A small inductor transformer is wired across the above input of the IC. The primary of the inductor is connected to the wire which finally terminates to the earthing terminal or the pin of the various 3-pin sockets in the premise.
The transformer can be an ordinary output transformer used in small radio receiver’s output amplifier stage.
In case of a leakage, the leaking current passes through the primary winding of the inductor and gets stepped up at the secondary winding.
The stepped up induced AC is immediately sensed by the IC input and further amplified to the desired levels, so that the SCR switches in response to the triggering.
The SCR, due to its inherent property instantly latches and pulls the relay into conduction.
The relay conducts and switches OFF the mains power to the three pin sockets, switching of the appliances and thus eliminating earth leakage conditions
ELCB Circuit Using a Triac
The above circuit can also be implemented using a Triac, everything remains the same, except the relay stage, which now gets replaced by a Triac.
During normal conditions the IC output remains switched OFF and the triac is allowed to conduct and operate the load.
However the moment a leakage is sensed, the IC output goes high, which triggers the SCR and latches its anode to ground. This inhibits the gate current to the triac which instantly stops conducting, switching OFF the load and rectifying the unfavorable conditions.
ELCB Circuit Using an SSR or SolidState Relay
Mians operated SSR devices are nowadays being effectively employed for switching mains operated loads more efficiently than relays and since these are electrically isolated and solid state in nature, becomes more desirable than the conventional switching devices like triacs and relays.
Here, as long as the conditions are normal, the SSR is able to derive the required input triggering voltage from the circuit, however the moment a leakage is anticipated, the circuit triggers the SCR which in turn chokes the SSR input trigger to ground. The SSR instantly stops conducting, implementing the intended actions by tripping the load and prevents any possible hazard.
Parts List
R1 = 100K,
R2 = 1M,
R3, R4, R5 = 1K,
C1 = 0.01uF
C2 = 100uF/25V
L1 = ordinary small output transformer as used in transistor radios.
SCR = BT169
Triac = BT 136 or higher current type
Op amp = ¼ IC324
SSR = As per user specs.
Relay = 12V, SPDT
Sunday, March 22, 2015
2010 Acura TL A Spec Specification
Acura has appear the addition in Canada of the 2010 Acura TL A-Spec bound copy package, able May 10, with a Manufacturers Suggested Retail Price of $51,290.
The 2010 Acura TL A-Spec appearance Super Handling All-Wheel Drive (SH-AWD) and includes all of the appearance of the TL SH-AWD Technology Amalgamation trim with either 6-speed chiral manual or 5-speed automated transmission. The TL A-Spec includes the afterward different features:
* 19-inch admixture auto with appropriate summer achievement tires
* Full aero kit brim package; front, ancillary and rear skirts
* Midnight chrome grille and rear piece
* �A-Spec� cast and �A-Spec� attic mats
Acura is the luxury-performance analysis of Honda Canada Inc. Seven audible cartage (CSX, TSX, TL, RL, RDX, MDX and ZDX) are marketed beneath the Acura brand. The Acura ZDX, MDX and CSX are congenital at the Honda of Canada Mfg. accumulation ability in Alliston, Ontario.
The 2010 Acura TL A-Spec appearance Super Handling All-Wheel Drive (SH-AWD) and includes all of the appearance of the TL SH-AWD Technology Amalgamation trim with either 6-speed chiral manual or 5-speed automated transmission. The TL A-Spec includes the afterward different features:
* 19-inch admixture auto with appropriate summer achievement tires
* Full aero kit brim package; front, ancillary and rear skirts
* Midnight chrome grille and rear piece
* �A-Spec� cast and �A-Spec� attic mats
Acura is the luxury-performance analysis of Honda Canada Inc. Seven audible cartage (CSX, TSX, TL, RL, RDX, MDX and ZDX) are marketed beneath the Acura brand. The Acura ZDX, MDX and CSX are congenital at the Honda of Canada Mfg. accumulation ability in Alliston, Ontario.
Saturday, March 21, 2015
Bajaj Pulsar teams up with Fast Furious 4 for a pulsating co branded campaign to announce the 2009 edition of Bajaj Pulsar
A first time initiative by a two wheeler company co-branding with a Hollywood film to showcase its brands and announce its new 2009 edition.
� Bajaj Pulsar breaks the clutter by associating with this hi octane film post its release unlike other brands that associate themselves with films a week before its release & continues it over the release weekend.
� When it�s about speed Bajaj Pulsar rules the game
Bajaj Auto has partnered with the adrenaline-fueled franchise and the smacking Hollywood hit movie �Fast & Furious 4� for Co-Promotion. This association will be seen in a form of a special co-branded TVC campaign which features adrenaline packed visuals of Bajaj Pulsar and the action packed �Fast & Furious 4� together. P9 Integrated (A Division of Percept Ltd), a leading 360 degree entertainment marketing company has conceptualized, planned & executed this entire association in a cleverly integrated format. The �speed & race quotient� present in the film is interwoven in this campaign which brings a seamless connect between the brand persona & the film.
A 30 sec co-branded TVC has been created using relevant footage from the film �Fast & Furious 4�. The TVC has shots of racing from the movie interspersed with shots of Bajaj Pulsar from their ad. The way both are seamlessly interspersed, it looks like Bajaj Pulsar was always a part of the film from the very beginning. The key message of the campaign is to reiterate the fact that when it�s about speed Bajaj Pulsar rules the game and also to announce the 2009 edition of Bajaj Pulsar.
The commercial is currently on air on various sports and male centric channels like Espn, Neo Cricket, Zoom, Network 18 Channels, UTV, UTVi etc. This co-branded TVC campaign will be on air for 2 weeks.
Considering the popularity of the franchise and the box-office success of �Fast & Furious 4� in India and worldwide, Bajaj Pulsar wanted to celebrate the movie�s success along with the brand. There are huge brand synergies showcased in the campaign as both of them embody speed, racing, high adrenaline and living on the edge characteristics. Unlike other brands, Bajaj Pulsar tied-up with Fast & Furious 4 for a post release co-branded campaign and elevated the brand values and its messaging to a different level.
Mr. Milind Bade, General Manager (Marketing), Bajaj Auto states, �Bajaj Pulsar has always stood for Performance. The complete synergy in Pulsar brand values and Fast and Furious the movie is what makes this co-branded campaign highly effective.�
Talking about the association Pritie Jadhav, Head � Branding, P9 Integrated, a division of Percept Ltd, says, �Seeing the similarities between the brand, Bajaj Pulsar and the movie Fast & Furious 4 we identified a seamless connect between the both, as they both symbolize speed and racing. This triggered the conceptualization of the association. The objective of the co-branded campaign was to harp on the popularity of the franchise and target the audience that the movie attracts. This association will help the brand talk directly to their TG i.e. people who love sports, racing and adventure.�
Unlike past, brands have now been increasingly associating with films post its release. Like Bajaj Pulsar and Fast & Furious 4, in past Hansaplast and Lifebuoy had launched multimedia campaign along with the movie Krrish one month after its release. This only proves that films whose theme exemplifies and emanates the theme and personality of the brand makes it an effective tool in communicating with the target audience.
Vin Diesel and Paul Walker reteamed for the ultimate chapter of the adrenaline-fueled franchise�Fast & Furious 4. Heading back to the streets of L.A., they rejoined Michelle Rodriguez and Jordana Brewster to blast muscle, tuner and exotic cars along the crowded streets of the city and across international lines in a high-octane action-thriller from director Justin Lin. �Fast & Furious 4� was released by Paramount Films of India in English, Hindi, Tamil & Telegu.
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� Bajaj Pulsar breaks the clutter by associating with this hi octane film post its release unlike other brands that associate themselves with films a week before its release & continues it over the release weekend.
� When it�s about speed Bajaj Pulsar rules the game
Bajaj Auto has partnered with the adrenaline-fueled franchise and the smacking Hollywood hit movie �Fast & Furious 4� for Co-Promotion. This association will be seen in a form of a special co-branded TVC campaign which features adrenaline packed visuals of Bajaj Pulsar and the action packed �Fast & Furious 4� together. P9 Integrated (A Division of Percept Ltd), a leading 360 degree entertainment marketing company has conceptualized, planned & executed this entire association in a cleverly integrated format. The �speed & race quotient� present in the film is interwoven in this campaign which brings a seamless connect between the brand persona & the film.
A 30 sec co-branded TVC has been created using relevant footage from the film �Fast & Furious 4�. The TVC has shots of racing from the movie interspersed with shots of Bajaj Pulsar from their ad. The way both are seamlessly interspersed, it looks like Bajaj Pulsar was always a part of the film from the very beginning. The key message of the campaign is to reiterate the fact that when it�s about speed Bajaj Pulsar rules the game and also to announce the 2009 edition of Bajaj Pulsar.
The commercial is currently on air on various sports and male centric channels like Espn, Neo Cricket, Zoom, Network 18 Channels, UTV, UTVi etc. This co-branded TVC campaign will be on air for 2 weeks.
Considering the popularity of the franchise and the box-office success of �Fast & Furious 4� in India and worldwide, Bajaj Pulsar wanted to celebrate the movie�s success along with the brand. There are huge brand synergies showcased in the campaign as both of them embody speed, racing, high adrenaline and living on the edge characteristics. Unlike other brands, Bajaj Pulsar tied-up with Fast & Furious 4 for a post release co-branded campaign and elevated the brand values and its messaging to a different level.
Mr. Milind Bade, General Manager (Marketing), Bajaj Auto states, �Bajaj Pulsar has always stood for Performance. The complete synergy in Pulsar brand values and Fast and Furious the movie is what makes this co-branded campaign highly effective.�
Talking about the association Pritie Jadhav, Head � Branding, P9 Integrated, a division of Percept Ltd, says, �Seeing the similarities between the brand, Bajaj Pulsar and the movie Fast & Furious 4 we identified a seamless connect between the both, as they both symbolize speed and racing. This triggered the conceptualization of the association. The objective of the co-branded campaign was to harp on the popularity of the franchise and target the audience that the movie attracts. This association will help the brand talk directly to their TG i.e. people who love sports, racing and adventure.�
Unlike past, brands have now been increasingly associating with films post its release. Like Bajaj Pulsar and Fast & Furious 4, in past Hansaplast and Lifebuoy had launched multimedia campaign along with the movie Krrish one month after its release. This only proves that films whose theme exemplifies and emanates the theme and personality of the brand makes it an effective tool in communicating with the target audience.
Vin Diesel and Paul Walker reteamed for the ultimate chapter of the adrenaline-fueled franchise�Fast & Furious 4. Heading back to the streets of L.A., they rejoined Michelle Rodriguez and Jordana Brewster to blast muscle, tuner and exotic cars along the crowded streets of the city and across international lines in a high-octane action-thriller from director Justin Lin. �Fast & Furious 4� was released by Paramount Films of India in English, Hindi, Tamil & Telegu.
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