ADVANCE ELECTRICAL KNOWLEDGE
|
ELECTRICAL TOOLS NAME
|
||||
|
S.NO.
|
TOOLS NAME
|
REMARK
|
||
|
1
|
Grinder(cutter) with blade
|
|
||
|
2
|
Pana(ring spanner)
|
|||
|
3
|
D-spanner
|
|||
|
4
|
Drill machine
|
|||
|
5
|
Rachet set(goti set)
|
|||
|
6
|
Climping tools
|
|||
|
7
|
Plier & nose plier
|
|||
|
9
|
Tester
|
|||
|
10
|
Scrow driver
|
|||
|
11
|
Hexa blade
|
|||
|
12
|
Slip
|
|||
|
13
|
Gland
|
|||
|
14
|
Thimble(Lugs)
|
|||
|
15
|
Blade/knife
|
|||
|
16
|
120mm/240mm,4core cable
|
|||
|
17
|
Tape
|
|||
|
18
|
Bus-Bar
|
|||
|
19
|
Cable Tie
|
|||
|
20
|
Steel wire
|
|||
|
21
|
Measuring Tape
|
|||
|
22
|
Hammer
|
|||
|
23
|
Wire sciper
|
|||
|
24
|
Holsa cutter with chucknut
|
|||
|
25
|
Hammer machine
|
|||
|
26
|
Hilty machine
|
|||
|
27
|
ceiling rose
|
|||
|
28
|
Bracket
|
|||
Circuit breaker-When any
circuit in unhealthy or unbalance condition then the circuit will be break,is
called circuit breaker.like relay.mcb,mccb,rccbetc.it is protective device.it
like a fuse.
|
C.B
|
1-Air c.b(A.C.B)
|
|
2-vacum c.b(V.C.B)
|
|
|
3-Oil c.b(O.C.B)
|
|
|
4-Air c.b(A.B.C.B)
|
Switch gear-Switch gear is
switching,controlling and protective device,like isolator,M.C.B,M.C.C.B,R.C.C.B,E.L.C.B
relay etc.
M.C.B-Miniature circuit
breaker.
R.C.C.B-Residual current c.b
R.C.C.B-Residual current c.b
E.L.C.B-Earth leakage
circuit breaker.
M.P.C.B-motor protection circuit
breaker.
P.I.U-Power interface
unit.
D.G- Diesel generator.
T.P-Three phase
D.P-Double phase
S.P-Single phase
L.D.B-Light distribution board
H.T-High tension(up to
11000v)
L.T-Low tension(below
11000v)
All those devices which are used for controlling,switching and
protective of circuit is called switchgear.
|
M.C.B
|
1-Single pole(SP)
|
|
2-Double pole(DP)
|
|
|
3-Three pole(T.P)
|
|
|
4-Four pole(F.P)
|
Isolator- It is used
before & after of transformer.isolator is also type of circuit
breaker.thisis helpful for maintenance of transformer.
Relay- Relay is
electrimechanical device.this is also is in switchgear.
|
RELAY
|
1-Glass relay
|
|
2-Thermal relay
|
|
|
3-Solid state rlay
|
|
|
|
Recloser-Recloser is also
type of circuit breaker.
Bus-Bar-This is used for
join two wire.This is an conductor copper split.This is used in control panel.
|
EARTHING
|
1-Plate earthing
|
|
2-Pipe earthing
|
|
|
3-Chemical earthing
|
|
|
|
|
CABLE
TRAY
|
1-Perforated type
|
|
|
2-Ladder type
|
||
|
CABLE
|
1-Single core
|
|
2-Double core
|
|
|
3-Three core
|
|
|
4-3.5 core
|
|
|
5-4core
|
|
SITE WORK LEVEL
|
1-Unskills (Electrician/Helper)
|
|
|
2-Semi skills(Supervisor)
|
||
|
3-Skills(junior engg.)
|
||
|
4-High Skills
|
||
For load calculation:-
P=V.I
Note-if any fault in circuit then 1st
off all relay inform to circuit breaker then break the circuit.
For
240mm,4core cable gland no-011
For
120mm,4core cable gland no-09
For
70mm,4core cable gland no-04
|
THREE PHASE
|
1-Red(R)
|
|
|
2-YELLOW(Y)
|
||
|
3-BLUE(B)
|
||
|
|
||
|
M.C.B
|
1-6 amp.
|
|
2-10 amp.
|
|
|
3-16 amp.
|
|
|
4-20 amp.
|
|
|
5-25 amp.
|
|
|
6-32 amp.
|
|
|
7-40 amp.
|
|
|
8-63 amp.
|
|
|
9-100 amp.
|
|
|
10-125 amp.
|
Power Transformer(P.T)-Convert 33kv to 11kv(H.T to L.T).
Distribution Transformer(D.T)-Convert 11kv to 440v/220v.
Current Transformer(C.T)-Measure current of Transformer.
Potential Transformer(P.T)-Measure voltage of transformer.
Lightning Arrester(L.A)-This is used protection of
transformer.
DTR Structure-
Following
material are required for installation of transformer:-
|
S.NO.
|
Material Description
|
|
1
|
VCB HT panel
|
|
2
|
ACB panel
|
|
3
|
3*95 H.T cable
|
|
4
|
4*120 LT cable
|
|
5
|
2*70 LT(AT) cable
|
|
6
|
Transformer 250KVA
|
|
7
|
Transformer 500KVA
|
|
8
|
Transformer 1.6 MVA
|
|
9
|
11kv disc insulator
|
|
10
|
11kv Pin insulator
|
|
11
|
Lighning Arrester
|
|
12
|
LT panel without ACB
|
|
13
|
Pipe earthing material
|