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Circuit Breaker Rating
2012-01-30 21:07:00 i wanna know what is the difference between iu and in. i have a circuit breaker that has the following nameplate in=63 A , iu= 160A
Circuit Breaker Open/Close Time
2012-01-24 16:22:00 Is there any concern if the closing time of the CB is faster than the specified timing. spec 80 millisec. closing time 60 millisec. Thanks,
Circuit Breaker Close And Open Coil Resistance Measurement
2012-01-18 21:42:00 What do I have to use to measure the open and close coil resistance of the HV/MV circuit breaker control coils. Does regular ohm-meter do the accurate measurement (I mean because of the coil inductance?) or I have to use a ductor (micro-ohm) tester? Thank you
Breaker Selection
2012-01-11 10:53:00 Hi Experts, I have load of 600Amps for which i am gonna use 800Amps MCCB but confused of using of which breaking capacity can any body help me out how to calculate the breaking capacity or short circuit current for 800Ams 440VAC system
MV Circuit Breaker Timing Test
2012-01-10 21:41:00 Just I want to know the testing procedure of the MV circuit breaker timing test: 1. If this test could be done, while the breaker is connected to the test through the test cord. or the test cord has to be disconnected and the DC voltage supply goes through the test instrument and connected to open/
Breaker
2012-01-07 09:27:00 Hello Every on I hope you will be fine. I am new user of this forum and working as an electrical design engineer. Kindly tell me how to calculate breaker size? Through which formula can we find the size of bus bar in switchgear???
Working of DG Breaker Panel
2012-01-06 06:41:00 how does a dg breaker panel for 6.6kv 2*2000 kva dg set work ?
New Load to Circuit Trips Breaker After a Period of Time
2011-12-19 19:26:00 I have just installed two ceiling fans and rerouted some lighting on my new covered patio. I wired and hung the fans then ran the wiring back to an existing junction box on the 20A circuit. After turning the breaker off, I connected everything. I flipped the breaker back on and tested the new "fixtu
How Do I Test Teed Protection in One and a Half Breaker Scheme.
2011-12-18 04:47:00 The scheme has 5 CT arrangement. I need to test both low and high impedance scheme. The scheme is of ABB make.
Circuit Breaker Rating
2011-11-05 22:43:00 hi everbody, i m just look at MCB rating and found that the there is no any proper series or order between them like 6 A, 10 A, 13 A, 16 A, 20 A, 25 A, 32 A, 40 A, 50 A, 63 A, 80 A and 100A why these rating like this? why they are not in proper series?... is any specific reason for such type of rat
Breaker and Fuse Question
2011-10-31 12:40:00 What is the minimum operating time of breaker and fuse?
Operating Cycle in a Breaker
2011-10-23 21:52:00 What is the relation between operating cycle of a breaker with tripping time. In what way operating cycle of a breaker play role in Relay Co Ordination?
"Tropicure" Bear Tie Ball is a Record Breaker!
2011-03-07 20:41:00 "Tropicure" Bear Tie Ball benefitting Bear Necessities Pediatric Cancer Foundation is a record breaker!
IEC NEC BS Breaker Overload Fuses for Motors
2011-01-19 14:58:00 Hi I am NEC guy but due to some project condition I will have to deal with IEC BS I have a question how it can be done for motor trip setting in BS IEC like we have in NEC for conductor SC and OL . 430.27 430.22 310.16 430.52 240.6 430.32
Generator Breaker
2011-01-17 07:50:00 Please kindly advise the reason why not install the generator breaker for steam turbine Generator in CCPP power plant while Gas turbine generator has his own breaker(52G). Station power is supplied from Aux. transformer which locates between Gas turbine generator and it's step-up transfomer.
Is too much hair a deal breaker?
2010-09-15 19:54:00 Obviously I know how I feel, but I have always been curious about what other people think about this hairy situation and Jennifer Kelton from Bad Online Dates also became curious. So we made it our mission to find out.
Pro Gaming Tips: Don't let a teammate be a 'game breaker'!
2010-06-29 16:30:00 Gamer Tuesday is when the gaming world takes center stage on Geek To Me, whether it's taking a look at the KINECT for X-Box or discussing whether video games are art. It's also when the folks of vVv Gaming share some of their gaming knowledge with others who would like to get into competitive gaming. Today, they re-visit the topic of 'game breakers', things that can ruin your game if you don't address them promptly. And if you ask me, this particular one is a toughie:Game Breakers Part 2: Broken Players - By Dakota "Rapture" Lasky and edited by Jordan "Doomhammer" Kahn Last time on Game Breakers, we talked to the masses about the existence of bad habits and how...
Pro-Law Breaker Web Site Posts Ill. Minuteman Project Director's Home
2010-06-09 16:05:00 -By Warner Todd Huston In an example of the most extreme left-wing tactics, a website that supports illegal immigration has publicized the home address of the Director of the Illinois Minuteman Project, Rosanna Pulido. Apparently this website intends to try and harass Pulido at her home, a tactic that we recently saw from thug union members protesting in front of the private residence of an east coast banker and terrorizing his son. The website called South Side Chicago Anti-Racist Action is ostensibly an offshoot of a national group called Anti-Racist Action (ARA), a group originally dedicated in the 1980s to fighting neo-Nazis and white supremacists....
Pro Gaming Tips: Stop Bad Habits from being your "Game Breaker"
2010-06-08 20:15:00 The articles written by the gamers of vVv Gaming have proven to be the most popular posts on this blog. Whether they're about what 'professional gaming' is, or getting ready for a tournament, or helping aspiring pros make the best impression on potential sponsors, these posts have garnered the most comments and - in some cases - controversy.Today we get some practical advice on improving your game by avoiding bad habits AKA 'game breakers': Game Breakers: Bad Habits by Dakota "Rapture" Lasky, edited by Jerry "LordJerith" Prochazka For every good player out there on the top competitive circuits, there is a game breaking habit the rest of us have that keeps our chances of winning to local tournaments. And it...
Sometimes it's not a deal breaker, it's just down right picky
2010-04-17 22:00:00 Should bad style really be a deal breaker?
Uh-Oh We Have a Rule Breaker: Mixed Prints.
2010-02-08 05:22:00 Give me a second to explain before you swear off reading my blog for life. Mixed prints are IN. I know, read it and weep people. Mixed prints have been trying to permeate the walls of wearable fashion for the past few seasons now, and I will not bull shit you, I stood by with my arms crossed, shaking my head, saying "no way, not happening"....
The non-drinking guy: Deal breaker or not?
2010-01-27 04:07:00 Is it a deal breaker if you like to drink and your date doesn't?
Adventures in Dating: Mama Say Deal Breaker
2009-11-16 22:30:00 SATWC asks the question, Why is being a mama's boy a dealbreaker?
50-Amp AC Breaker Keeps Tripping
2009-09-14 19:51:00 Hello Folks, AC breaker 50amps Keeps tripping every 3 days If the circuit, the amperage, the size of wire is alright for this RTU, what could be making the circuit breaker which is a 50amp breaker, trip? What would be the risk of replacing it by a 60 amp breaker if the AWG allows it?
John Mayall: blues breaker returns!
2009-09-03 20:52:00 John Mayall, will be releasing his 57th studio album ( yes that's right only 56 other albums to buy!_ titled Tough on September 15th! 76 years young, Mayall has spent 44 years cultivating his brand of blues and has helped launch the careers of some of the greatest contemporary blues musicians, including Eric Clapton, Rolling Stone Mick Taylor, and Fleetwood Mac?s Mick Fleetwood, John McVie, and... This is a content summary only. Visit Truth In Shredding to find out more!
Circuit Breaker MCB
2009-09-03 08:43:00 As per my understanding,we can connect the live power cable on any side (top or bottom of the switch) of the MCB. But today one of our senior customer was mentioning to one of my colleagues that we should connect it only at the top. Is he right and if he is, what is the logic?
Fused molded case circuit breaker application?
2009-09-01 15:20:00 Dear Sirs, Do you know what is the purpose/application of fuse molded case circuit breaker? Because I've seen this in industrial single line diagram, their motor and feeder is protected by two protection that is fuse molded case circuit breaker. Do you think it has something to do with short ci
Choosing Circuit Breaker
2009-08-28 13:14:00 Hi everybody. Now, i have a project. I have to choose a circuit breaker for distribution system. I have a circuit breaker catalog of Siemens, in this catalog i see two parameters that i can't discriminate them: - Rate short circuit breaking current. - Rate short ci
generating electricity using speed breaker
2009-08-06 09:40:00 my name is ashif im a mechanical engineering student i want to know all details about generating electricity using speed breaker
Testing Motor Protection Circuit Breaker
2009-08-03 05:52:00 I have a current source of 5V 1000A AC. I am unable to inject more than 100A for a 30A rating motor protection cuircuit breaker type GV2 series of schineider. Could it be due to high resistance of close circuit contacts of the motor protection circuit breaker? I collected the data sheet from the m
aie circuit breaker
2009-07-25 16:46:00 hi frds, anyone pls let me know what is Ap indication meant for in a circuit breaker , make of the circuit breaker is schnider electric(Merlin Gerin)
100A 3-Phase Cutler Hammer Pump - Breaker Model HMCP100R3C
2009-07-16 16:48:00 Hi we have been having problems with the the above mentioned breaker. We have gone through 4 breakers within the year. Basically what is happening is that one of the phases of the breaker is burning up without tripping the breaker. This type breaker is being used with pump starters to start pumps
breaker size
2009-07-08 09:43:00 hi ,i m sorry i did a mistake,the rated current is 124A & full load current is 18.60A, now which one should be considered for the load cal ,& breaker size sellection. thank you every body
Breaker First Pole to Clear Factor
2009-07-06 14:58:00 Dear all what is first pole to clear factor. I have seen this term in 110KV Crompton Greaves Ltd, SF6 Breaker's name plate.The value given is 1.5. What it actually means? Please share your views Regards gova
Breaker closing and tripping mechanism
2009-07-02 06:23:00 Dear all Please give some Basic idea how the closing and tripping mechanism operates and what is the role of spring charging mechanism inside the breaker.Or if anybody have catalogues/manuals,please attach here. Thanks in advance regards gova
The Promise Breaker
2009-06-30 01:50:00 As Jim Geraghty has pointed out on numerous occasions, all Barack Obama promises comes with expiration dates. We in the gay community have seen how quick he is to break (though the obsequious Joe Solmonese might say “slow to fulfill”) his campaign promise to repeal Don’t Ask/Don’t Tell (DADT), the ban on gays serving openly ...
By: GayPatriot
Repair vaccum breaker
2009-06-18 10:15:00 Dear All Our company get order to repair vaccum breaker. the breaker has capacity 3000 A, and we have to repair the arc contact to make it fix with its support. do you have experience to repair it? and where is the workhsop that could do it? Regards Rita
Sizing an Incoming Breaker
2009-06-17 16:04:00 I have to install a Distribution Board to feed 6 no's of 2.0Tonne Split A/C unit with input power of 3kW each. The Voltage of the system is 415V/240V, 3ph/1ph, 50Hz. each AC unit is protected by a 32A, 2 pole MCB. Now Do I size the incomer breaker solely on the (running load current + selec
Maxime Chaya: The poles breaker
2009-05-15 19:24:00 Visit Maxime’s homepage ?? ?? ?????? ???? ?? ????? ??????? ??? ?? ????? ?????? ?????? ???? ??? ?????… ??? ?? ????? ??? ?????? ????????? ???? ?????? ???? ??? ??? ??? ?????? ?? ???????! ??? ????? ?????? ??? ?? ??? ??? ????? ?? ??? ????! ??? ????? ??????? ???????… ????? ??????? ???? ??? ??????… ?. ????? ???????
Circuit breaker,Contactor, Relay & switch
2009-05-14 14:26:00 Please elaborate differences between :circuit breaker,Relay,switch,contactor.-
Vortex Breaker for LPG SPherical Tank
2009-05-10 18:17:00 Dear all.. Continuing my previous question about Excess Flow Valve before.. Today, i want to ask you again about Vortex Breaker in LPG Spherical Tank. Is it common to install vortex breaker in LPG spherical tank? In what opening should i install that vortex breaker? LPG outlet nozzle and
Generator Circuit Breaker vs. Station Transformer
2009-04-29 07:38:00 Hi to All Can any one explain the Importance of station transformer in the power plants and Importance of GCB(Generator circuit breaker)? If GCB present then station transformer (ST) is not usefull? Please explain both
24V DC breaker, 125A - 250 amp
2009-04-23 22:04:00 Hi all I have spent long hours on the Internet to find a 2 pole breaker suitable for 24 V DC system, with high amperage up to 250 A. Blue Sea is the best I have found so far, they have up to 500 amp but I can not see how that can work as they have connections for only 50 mm2 wires. Acording to th
Air cicuit breaker
2009-04-21 07:11:00 what is the meaning of closing & tripping force of air circuit breaker?
Air Conditioner Fuse VS Breaker Sizes
2009-04-20 16:26:00 If air conditioner label says MOCP 30a... should both the fuse at the disconnect as well as the breaker at the panel be 30amps maximum? I've had some people tell me to use 30a fuse at disconnect, but use larger breaker at the panel? Does the NEC permit using a larger breaker at the panel?
selection of cable, breaker and voltage drop calculation
2009-04-17 01:17:00 in one circuit there are 12 light poles each has single luminaire of 600 watts. can u plz tell me how to select the cable for that circuit and what should be the size of the breaker.
Will a Siemens Q-Type Breaker Fit a GE Type THQL Panel?
2009-04-16 16:49:00 Can someone confirm that a Siemens breakers type Q will fit in a GE type THQL panel?
Breaker Capacity in a Three-Phase Distribution Board
2009-04-14 13:54:00 IN A BOARD IN WORK IT HAS A 200A Main Breaker. Inside it has 1xC32 3 phase 3xc20 3 phase 1xD32 single phase 1xD20 3 phase Then it has on the other side of the board 8xC10 single phase 4xC32 single phase How do I work out if I can put any mo
Circuit breaker sizing
2009-04-13 08:41:00 Hi guys, 1, can any budy guide me how to rate a circuit breakers 2, is there any specific formula availbale to select circuit breakers. i am newly graduated engineer & working in abu dhabi uae |
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