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Topic: Earth leakage breaker


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  Circuit breaker - Wikipedia, the free encyclopedia
Circuit breakers are made in varying sizes, from small devices which protect an individual household appliance up to large switchgear designed to protect high voltage circuits feeding an entire city.
The circuit breaker's contacts are held closed by a latch and, as the current in the solenoid increases, the solenoid's pull releases the latch which then allows the contacts to open by spring action.
Circuit breakers for larger currents are usually arranged with pilot devices to sense a fault current and to operate the trip opening mechanism.
en.wikipedia.org /wiki/Circuit_breaker   (2958 words)

  
 Earth leakage circuit breaker - Wikipedia, the free encyclopedia
The term Earth leakage circuit breaker (ELCB) is often incorrectly used to describe its modern counterpart the Residual-current device (RCD).
An earth leakage circuit breaker (ELCB) is a device with two earth terminals used to directly detect currents leaking to earth from an installation and cut the power.
They were mainly used on TT earthing systems before RCDs became common.
en.wikipedia.org /wiki/ELCB   (206 words)

  
 CBI -- Technology: Ground Fault Protection
CBI Earth Leakage Protection Devices are the core balance type which monitor the difference in the current flowing in the live and neutral conductors.
CBI earth leakage units are manufactured to operate in the tolerance band of 19 to 26 mA.
These earth leakage units from 100 to 375 mA provide reasonable protection from the risk of electrical fires, but it should be noted that under certain circumstances a current of less than 500 mA flowing in a high resistance path is sufficient to bring metallic parts to incandescence and start a fire.
www.cbibreakers.com /ground_fault.asp   (746 words)

  
 Earth Leakage
If normal earth leakage detection level is 30mA.....But when several offices are fed from a single earth leakage..
...Thus it is suitable to avoid the stock hazard and fire caused by earth leakage It is mainly.....Earth Leakage Circuit Breaker FIN..
Earth leakage circuit breaker type FIN is suitable for cutting off the fault circuit.....Earth Leakage Circuit Breaker F
www.plexxa.com /s/earth_leakage?a=216257080&k=358173160   (390 words)

  
 earth-leakage circuit breaker Sellers, Suppliers, Exporters, Manufacturers, Factories   (Site not responding. Last check: 2007-10-23)
DZ47LE earth leakage circuit breaker is used for the protection against electrical leakage in the circuit of 50/60HZ, rated voltage 240/425V and rated current up to 32A.
Earth leakage circuit breaker type FIN is suitable for cutting off the fault circuit immedliately on the occasion of shock hazard or earth leakage of trunk line.
C45L earth leakage circuit breaker is used for the protection, against electrical leakage in the circuit of 50Hz or 60Hz, rated voltage single-phase 240V three phase 415V, rated current up to 60A....
www.fuzing.com /qrx/earth-leakage_circuit_breaker   (413 words)

  
 circuit breaker
Circuit breakers usually work by means of magnetic-type relays or solenoids.
When a current exceeds a fixed limit as it flows through the magnetic coil of a circuit breaker, a triggering mechanism is released, pulling the contacts apart and opening the circuit, thus preventing any more current flowing.
Circuit breakers have many advantages; for example, they are fast acting, can be adjusted to operate at different current values, and can be easily reset.
www.tiscali.co.uk /reference/encyclopaedia/hutchinson/m0016447.html   (339 words)

  
 Medical Dictionary - EARTH LEAKAGE CIRCUIT BREAKER (ELCB)   (Site not responding. Last check: 2007-10-23)
The earth wire in a three wire mains supply is to conduct away any small leakage currents, and also to provide a low resistance path to earth from the case of instrument and cause a fuse to blow if a short circuit should occur inside the equipment.
The ELCB monitors the current flowing to earth, usually by measuring the difference between the currents flowing in the live and neutral wires.
Since the leakage current is not measured in the earth wire the same principle can be applied to a two-wire supply to a double insulated device.
home.btconnect.com /MalcolmBrown/entries/EARTH_LEAKAGE_CIRCUIT_BREAKER__ELCB_.html   (223 words)

  
 gfi cores   (Site not responding. Last check: 2007-10-23)
Earth leakage circuit breakers (FI circuit breakers) are being used increasingly in the wide ranging field of electrical installations.
The fault current circuit breaker has proved to be an excellent safety measure in protecting against indirect contact.
These type of cores are used for the summation transformer version of FI circuit breakers which are not only triggered by AC leakage currents but also by pulsating DC earth leakage currents.
www.enpay.com.tr /gficores.html   (219 words)

  
 China air circuit breaker / acb manufacturer and supplier, Andeli group.   (Site not responding. Last check: 2007-10-23)
Air circuit breaker is suitable for the circuit of AC 50Hz with rated voltage up to 690V and rated current up to 6300A.
It is mainly used to distribute electric energy and protect circuit and power supply equipment from overload, under voltage, short circuit and single phase earthing with intelligentized and selective protection function, the breaker can improve the reliability of power supply and avoid unnecessary power failure.
The breaker is applicable for power stations, factories, mines (for 690V) and modern high-buildings, especially for the distribution system of intelligentized building.
www.andeligroup.com /product/dea_air_circuit_breakers.htm   (163 words)

  
 China moulded case circuit breaker / mccb manufacturer and supplier, Andeli group.   (Site not responding. Last check: 2007-10-23)
Hello, if you like us to contact with you immediately, please fill in the Enquiry table, if you can not find the exact item that you are looking for, please fill in ODM table, If you are not so sure of our model number, please use the top search button.
The moulded case circuit breaker is applicable circuit of AC 50/60Hz, rated insulation voltage and operating voltage up to 690VAC and 250VDC.
The rated operating current between 3A-1600A, for distribute energy of electricity and infrequent making and breaking circuit, and infrequent starting of motor (rated operating current up to 400A).At normal condition, they are provided with the function of the protection against overload, short circuit and under voltage.Our MCCB comply with standard of IEC947-2,GB14048.2 and so on.
www.andeligroup.com /product/dea_moulded_case_circuit_breakers.htm   (151 words)

  
 Circuit breakers, China circuit breakers, circuit breaker manufacturer, miniature circuit breaker, air circuit breaker   (Site not responding. Last check: 2007-10-23)
These miniature circuit breakers are produced according to the international standards in force IEC 60898 and are divided into three series, covering a range between 6A and 125A under the voltage of 230/400V.
The residual current circuit breaker detect the fault current connected to earth, compare the fault current value with the tripping differential value and open the prtected circuit when the fault current value is greater than the threshold value.
Residual current operated circuit breaker with integral overcurrent protection (RCBO) - These circuit breakers are used to protect electrical installations against overload and short circuit and assure the protection of live in case of indirect contacts.
www.asiaswitchgear.com /product/Circuit_breakers.htm   (658 words)

  
 Eaton Electric - Alamat
The Alamat electronic earth leakage circuit-breaker is a miniture circuit-breaker with an integrated earth-fault protection unit.
protection against earth leakage currents As a result, any fault that occurs is restricted to the associated consumer group.
Alamat is provided with an electronic earth leakage protection and compared with mechanical earth leakage protection, has a number of attractive advantages: The magnitude of the operating current (10, 30, 100 and 300mA) is set in the factory with great accuracy and the values are fixed.
www.vidivici.cz /eaton?c=antosj_2128_2   (186 words)

  
 Used Robots.com: Motoman XRC Installation and Wiring - Page 70
Therefore, an earth leakage circuit breaker can not be used as standard.
According to European standard it is not necessary to use a earth leakage circuit
When it is necessary to use an earth leakage circuit breaker, the connection bet-
www.used-robots.com /manuals/motoman/xrc/installation/xrc-installation_70.htm   (126 words)

  
 Earth leakage - Offers for Earth leakage - exporters, manufacturers, suppliers, wholesale, Traders, factories, Companies   (Site not responding. Last check: 2007-10-23)
F360 Earth Leakage circuit breaker without over current protection conforms to the standards of GB16916.1, IEC1008, BS 4...
DZ47LE series earth leakage circuit breakers are mainly applied to the AC 50Hz/60Hz circuit rated voltage 230/400V and r...
This is a kind of earth leakage circuit breaker.It can protect you and yourelectric instrument from being hurt or damage...
www.tradekey.com /ks-Earth-leakage   (225 words)

  
 MODULE V - Electrical engineering - Basics Page 39
Electric devices that are connected to disconnection transformers are automatically being disconnected from their grounding connection in the case of an internal insulation breakdown so that no return flow of electric current through the human body to the earth can occur anymore.
If the parts of an electric device or machine that do not conduct current are connected to protective grounding through a ground electrode then in case of an accident the fuse of the circuit interrupts the current flow.
The earth-leakage circuit breaker, also called "FI-switch", disconnects the electricity mains that is located behind it from the power supply as soon as there is a fault current of e.g.
www.eduvinet.de /servitec/elekeep39.htm   (280 words)

  
 Earth Leakage Circuit Breaker Type(F360) - INTE Industries Co., Ltd.
Earth Leakage Circuit Breaker Type(F360) - INTE Industries Co., Ltd.
INTE Industries Co., Ltd. Home : Products Product Description: Earth Leakage Circuit Breaker Type(F360), The F360 series ELCB applying to the circuit of AC50-60Hz, 240V(220V) single phase, 415(380V) three phases and below it for industrial and mining enterprises, building trade, commerce and family.
To mainly prevent electric fire and personal casualty accident caused by personal electric shock or leakage of electrified wire netting, this switch is a current-operated, fast leakage protector of pure electromagnetic type, which it can break off fault circuit rapidly in order to avoid occurrence of accident.
www.allproducts.com /prc/inte/f360.html   (232 words)

  
 earth Sellers, Suppliers, Exporters, Manufacturers, Factories   (Site not responding. Last check: 2007-10-23)
Our company adopts electrolysis and deoxidization methods to produce the rare earth metals, oxides and its alloys, the Rare earth materials are considered as bone intensifier of industry.
[ related keywords: breaker, circuits, circuit breakers, circuit-breakers, earth, earth leakage circuit breaker, earth-leakage circuit breaker, ite circuit breakers, leakage ]
Natural Earth Facial/Body Spa Is an exclusive formulation of clay, rich fl loam, peat, and a special blend of grains.
www.fuzing.com /qrx/earth   (343 words)

  
 Servo drive tripping earth leakage circuit breaker   (Site not responding. Last check: 2007-10-23)
I am unsure as to whether I have an earth leakage on my drive.
This can be cause by using inappropriate wire (such as using MTW in conduit) or to small of a conduit, or even not lubricating the conductors when they are being pulled.
Any device that has leakage current to earth will cause an elcb to trip.
www.control.com /1026194738/index_html   (340 words)

  
 Memshield 2 - Earth Leakage Protection
Memshield 2 earth leakage protection range offers a choice of three earth leakage protection modules each offering successively greater levels of function enabling system designers to select the most appropriate module for an application's particular requirements.
Earth leakage protection, breaker tripping by shunt trip, adjustable as follows...
Individual phase voltages; Individual phase currents; Earth leakage level; Reading of all potentiometer settings enables precise setting; 'MCCB Current Exceeded' alarm indication; 'Voltage Imbalance Exceeded' alarm indication.
www.memonline.com /earthleak.html   (668 words)

  
 810 EL Analog ELCB / RCCB / GFCI Tester   (Site not responding. Last check: 2007-10-23)
This model is a high quality instrument used by professionals to obtain accurate values of disconnection sensitivity in accordance with their day to day requirements.
Once connected to the power system, on the load side of the breaker to test, the current can be increased with the knob, starting at the minimum, until the breaker trip.
The peak current will be the sensitivity at which the breaker has tripped (if no other faults are present on the system).
www.hoytmeter.com /810el/810el.htm   (484 words)

  
 MachineDesign.com: Ground-fault interrupters   (Site not responding. Last check: 2007-10-23)
Ground-fault circuit interrupters (GFCIs), also called earth leakage or residual-current circuit breakers, can sense leakage current to earth ground from live parts and interrupt the circuit automatically when leakage current exceeds a predetermined value.
The term earth-leakage circuit breaker (ELCB) is sometimes used interchangeably with GFCI, though strictly speaking an ELCB is a different type of device.
ELCBs are generally used only with what are called TT earthing systems, where the earth connection protecting the consumer is through a local connection to earth (often near the receptacle), independent of any earth connection at the generator.
www.machinedesign.com /ASP/viewSelectedArticle.asp?strArticleId=60196&strSite=MDSite&catId=0   (412 words)

  
 earth leakage circuit breaker, motor protection circuit breaker, earth leakage circuit breakers, motor protection ...
earth leakage circuit breaker, motor protection circuit breaker, earth leakage circuit breakers, motor protection circuit breakers --China GREAT WALL electric Group
We are one of the biggest circuit breaker, surge protective device, isolating switch, residual current device, earth leakage circuit breaker, motor protection circuit breaker, moulded case circuit breaker manufacturer and factory in China.
We can manufacture earth leakage circuit breaker, motor protection circuit breaker, earth leakage circuit breakers, motor protection circuit breakers according to your requirements.
www.cnc-electric.com /circuit_breakers2.htm   (88 words)

  
 China Residual Current Device Products, Catalog, Samples - Alibaba Search for Residual Current Device products
These earth leakage circuit breakers are of high quality
Earth leakage circuit breaker used for protection against electrical leakage in the circuit of 50
Features: 1) Isolates switches and protects earth leakages of electrical circuit 2) Provides the indirect protects for operator and prevents fire 2) RCD is according to standards of IEC1008, and GB16916
chinasuppliers.alibaba.com /gs/gsSeoSearchResult.vhtml?IndexArea=product_en&SearchText=Residual_Current_Device&printFlag=true   (906 words)

  
 Westek Electronics Pty Ltd - Leakage current breaker tester   (Site not responding. Last check: 2007-10-23)
THE new Prodigit Electronics Model 3280 earth leakage breaker tester is suitable for testing of tripping current to 150mA in 115, 230 and 380V circuits.
An adjustable timing function permits the setting of dwell time and wait time per current step from 0 to 1 second and the current increase per step is adjustable between 0 and 150mA with a resolution of 0.1mA.
The Model 3280 leakage breaker tester is available from Westek Electronics Pty Ltd.
www.ferret.com.au /articles/4D/0C03E44D.asp   (191 words)

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