Table of Contents
What is the use of fuse in a service line?
The fuse breaks the circuit if a fault in an appliance causes too much current to flow. This protects the wiring and the appliance if something goes wrong. The fuse contains a piece of wire that melts easily.
Why fuse is used in electric line?
In electronics and electrical engineering, a fuse is an electrical safety device that operates to provide overcurrent protection of an electrical circuit. Its essential component is a metal wire or strip that melts when too much current flows through it, thereby stopping or interrupting the current.
Which fuse is used in HT side?
H T Drop Out Fuse Element, For Transformer Protection, 11000 Volt
| Voltage | 11000 Volt |
|---|---|
| Current Rating | 0.5 – 400 A |
| Application | Transformer Protection |
| Material | Copper |
| Brand | GEW |
Which fuse is used in transformers?
ABB WBP Transformer Fuses – Fuse Ratings & Dimensions
| Catalogue Number | Fuse Name | Rated Current I (A) |
|---|---|---|
| 1YMB750747M2201 | WBP-6 | 0.7 |
| 1YMB751206M2201 | WBP-10 | 0.6 |
| 1YMB752405M3201 | WBP-20 | 0.5 |
| 1YMB753604M3201 | WBP-30 | 0.4 |
Which wire is used in fuse?
Which material is generally used in a fuse wire? Answer: An alloy of lead and tin as it has a low melting point and a very high resistance.
What are the 3 types of fuses?
Different Types of Fuses – Constriction, Working & Characteristics
- DC Fuses.
- AC Fuses.
- Cartridge Fuses.
- D – Type Cartridge Fuse.
- HRC (High Rupturing Capacity) Fuse or Link Type Cartridge Fuse.
- High Voltage Fuses.
- Automotive, Blade Type & Bolted Type Fuses.
- SMD Fuses (Surface Mount Fuse), Chip , Radial, and Lead Fuses.
What is fuse example?
When you overload the circuit in your house by turning on too many different appliances at once and your power to the appliances you are using shuts off, the electrical device that tripped and caused the power to stop to the overloaded circuit is an example of a fuse.
What is the full form of do fuse?
TECHNICAL SPECIFICATION FOR 11 KV DROP OUT (D.O.) FUSE with Polymeric Insulators: (1) SCOPE: This specification covers outdoor, open, drop out expulsion type fuse cut outs suitable for installation in 50Hz, 11KV distribution system for protection of H.T.
What are the types of fuse?
Which are the main parts of a fuse wire?
The fuse wire is made up of Sn (tin) and Pb (lead) alloy because of its high resistance and low melting. Point. The tin and lead alloy is a eutectic composition consisting of 62% and tin plus 38% lead, which melts at 1830C.
What is the principle of fuse wire?
heating effect of electric current
An electric fuse is based on the principle of heating effect of electric current. It is made up of thin metallic wire of non-combustible material. A fuse is always connected between the ends of the terminal in a series connection with the circuit.
What are the two types of fuses?
Fuses can be divided into two major categories, AC fuses, and DC fuses.
What is the purpose of a power fuse?
Power fuses are a generally accepted means of protecting power transformers in distribution substations. The primary purpose of a power fuse is to provide interruption of permanent faults. Fusing is an economical alternative to circuit switcher or circuit breaker protection.
What kind of fuses are used in high voltage lines?
These fuses are used in high voltage AC transmission lines where voltages can exceed several hundreds of kilovolts. HRC (High Rupture Current) fuses: HRC fuses are cartridge type fuses consisting of a transparent envelope made of steatite (magnesium silicate).
Why do I need a low fusing fuse?
With low fusing ratios, the fuse may also provide backup protection for line-to-ground faults remote to the substation on the distribution network. Fuse ratings also must consider parameters other than the full load current of the transformer being protected.
Can a fuse be used to protect a circuit breaker?
Fusing is an economical alternative to circuit switcher or circuit breaker protection. Fuse protection is generally limited to voltages from 34.5 kV through 69 kV, but has been applied for protection of 115-kV and 138-kV transformers. To provide the greatest protective margin, it is necessary to use…