Full form of MPR in Electrical
MPR - Motor Protection Relay
MPR -Motor protection Relay |
Low power factor means poor electrical efficiency. The lower the power factor, the higher the apparent power drawn from the distribution network.
When low power factor is not corrected, the utility must provide the nonworking reactive power in addition to the working active power. This results in the use of larger generators, transformers, bus bars, wires, and other distribution system devices that otherwise would not be necessary.
S.No
|
Description
|
UOM
|
A
|
Cables & Wires:
|
|
1
|
1 core x 1.0 sqmm single strand, FR,
flexible Cu wire
|
Coil
|
2
|
1 core x 2.5 sqmm single strand, FR,
flexible Cu wire
|
Coil
|
3
|
1 core x 4 sqmm single strand, FR flexible
Cu wire
|
Coil
|
4
|
1 core x 4 sqmm multi strand, FR, flexible
Cu wire
|
Coil
|
5
|
1 core x 16 sqmm multi strand FR, flexible
Cu wire
|
mtrs
|
6
|
1 core x 35 sqmm multi strand FR, flexible
Cu wire
|
mtrs
|
7
|
1 core x 50 sqmm multi strand FR, flexible
Cu wire
|
mtrs
|
8
|
2 core x 1.5 sq.mm un armored, multi
strand, Cu, FR, PVC flexible cable
|
mtrs
|
9
|
2 core x 2.5 sq.mm un armored, multi
strand, Cu, FR, PVC flexible cable
|
mtrs
|
10
|
3 core x 1.5 sqmm un armored, multi strand,
Cu, FR, PVC flexible cable
|
mtrs
|
11
|
3 core x 2.5 sqmm un armored, multi strand,
Cu, FR, PVC flexible cable
|
mtrs
|
12
|
3 core x 4 sqmm un armored, multi strand,
Cu, FR, PVC flexible cable
|
mtrs
|
13
|
3 core x 6 sqmm un armored, multi strand,
Cu, FR, PVC flexible cable
|
mtrs
|
14
|
4 core x 1.5 sqmm un armored, multi strand,
Cu, FR, PVC flexible cable
|
mtrs
|
15
|
4 core x 2.5 sqmm un armored, multi strand,
Cu, FR, PVC flexible cable
|
mtrs
|
16
|
4 core x 4 sqmm un armored, multi strand,
Cu, FR, PVC flexible cable
|
mtrs
|
17
|
4 core x 6 sqmm un armored, multi strand,
Cu, FR, PVC flexible cable
|
mtrs
|
18
|
4 core x 10 sqmm un armored, multi strand,
Cu, FR, PVC flexible cable
|
mtrs
|
19
|
4 core x 16 sqmm un armored, multi strand,
Cu, FR, PVC flexible cable
|
mtrs
|
20
|
8 gauge copper wire for earthing
|
kg
|
21
|
10 Gauge copper wire for earthing
|
kg
|
22
|
4 pair communication twisted cable
|
mtrs
|
23
|
5 pair communication twisted cables
|
mtrs
|
24
|
10 pair communication twisted pair cables
|
mtrs
|
25
|
20 pair communication twisted pair cables
|
mtrs
|
26
|
50 pair communication twisted pair cables
|
mtrs
|
27
|
Telephone line cord 5 meter
|
mtrs
|
28
|
Telephone line cord 10 meter
|
mtrs
|
29
|
Telephone receiver cord
|
mtrs
|
Type | Instantaneous tripping current |
---|---|
B | Above 3 In |
C | Above 5 In up to and including 10 In |
D | Above 10 In up to and including 20 In |
K | Above 8 In up to and including 12 In
For the protection of loads that cause frequent short duration (approximately 400 ms to 2 s) current peaks in normal operation.
|
Z | Above 2 In up to and including 3 In for periods in the order of tens of seconds.
For the protection of loads such as semiconductor devices or measuring circuits using current transformers.
|