Answer / nasir.ansari888

Fuses are burned at time of over current flows in the ckt but breaker are just open at the time of over current flows.

Answer / lakshmanan.p

Both are protective devices.Fuses are cannot reuse,but the breaker can reuse.breaker can use for any voltage but fuses used only in the limited voltage only.

Answer / chreamz

A fuse is a normally closed protective device that ionises
(burnout open circuitry) under fault condition or when
current over its rating flow through it. Everything happens
automatically with no external actuator. Once blown, it
must be replaced. A circuit breaker if also a protective
device that gets a closing/tripping command from the relay.
It has internal & external devices (actuator) that bring
about execute the action sent by the relay. The life span
of the CB depends on the load, operation and maintenance.

what is different between electrical ckt&electronic ckt

4 Answers   Ashok Leyland,

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I have a question, I visit 01 site and face a problem, there is 2.5 ton Air Con working, when air con compressor is running at that time rectifier voltages are increasing upto 290-295 v and rectifier is giving main high alarm (rectifier is APC single phase, before starting compressor rectifier voltages was 230v. when air con is going off rectifier voltages are decreasing smoothly at its actual voltages 230v. Load on Genset phases is this: Red-13.5 amp AC (Air Con load), Yellow-1.7 amp AC (BTS lights etc.) and Blew-4 amp AC (telecom system load), Genset phase to phase and neutral to phase voltages are also ok. These are 10 sites having same system and same rectifier APC brand at every site 02 genset are working but the problem is same at all these 10 sites. What will be the reason behind???

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STATE WORKING OF VACCUM CIRCUIT BRAKER?

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what is the function of choke in a tubelight

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