Answer / pranay siddharth

It is a method used to avoid corrosion of the parent metal
by using another metal which acts as anode.Galvanisation is
one of the above methods .zinc coating is done. which acts
as anode and gets corroded resultng in no damage to the
steel or any other parent metal

Answer / mahesh p

Cathodic protection means to protect the burried metal
structures against corrosion; There are two types of CP
system:- 1) sacrificial (2) impressed.In these two types
the voltage between structure & soil should be maintain
about -1.12 volts w.r.t reference cell,according to
(NACE STANDARD).Equipments used in CP system:-1)Zinc Anodes
in sacrificial type
2)Anodeflex in Impressed type
3)Reference cells - CuCu-So4
4)Transformer Rectifier unit (Rating 50V/50A DC output)
5)Thermit weld
4)connecting wires
5)Anode & Cathode Juntion Box (A&CJB)
6)Reference cell junction Box(REJB)
7)Test Lead Point (TLP)

Answer / pritesh

in industries some corrosion is occurs due to ant reasion.
if we want to avoid this problem than we use this
protection.
in this protection we give the current to what we want to
protect.

Answer / rajasekara babu

to provide external anode with power.

how fluoresent lamp works??

2 Answers  

---

Which protection detects both AC and DC?

3 Answers   Megatron Solutions,

---

Whats the use of earth pits? and it will function? whats the natural earth value? How to improve ur earth resistance?

3 Answers   Anwar Ispat,

---

At what factor resistance r of a conductor depends?

0 Answers  

---

what is the formula for converting KW into KWH ?

3 Answers   Blue Star, Essar,

---

1000kva = how much kvar

3 Answers  

---

How power cable & control cable can be differentiate from each other ?explain?

14 Answers   Aster, Finolex, TCE,

---

Find the octal equivalent for the binary number 101101110

1 Answers   Ecil,

---

Based on what the rating of machines are provided??(ANswer should in single word)

19 Answers   Asian Paints, Bhel,

---

what are the safety in transformer,diesel generator,ups, chiller plant,h.t. , L.t. , sewage treatment plant(stp),water treatment plant(wtp), fire. plz ans. me in detail if you know any of the mention above. i urgently need

2 Answers   Claris Lifesciences, EFS,

---

Why dry type cast resin transformers tap link blast in HV side while power shut down times on load?

0 Answers  

---

v=r*i this means when voltage increases current also increases at constant resistance.... p=v*i this means when voltage increases current decreases to maintain the power constant which one is true...

3 Answers  

---