Description
The main switchboard MSB is a basic element in the power supply system of any social or industrial facility. MSB is located in a room or enclosed part of the room where electric equipment is placed, access to which is available only to qualified service personnel.
MSB, as a rule, is an integrated structure, consisting of functional elements (panels), namely: input panel, sectional panel, distributing panel. Both switch-disconnectors and circuit-breakers are used as incoming and sectional units.
Certificates
MSB is manufactured according to TU 3430-005-61938140-2012, in accordance with GOST R
Functions
- Reception and distribution of electric energy of 50 Hz frequency and 380/220 V voltage;
- Protection against the current impact if accidentally touched;
- Prevention of fires in the ignition of wire insulation;
- Protection against overloads and short circuits.
Application area
- Social buildings (kindergartens, hospitals, apartment houses, etc.);
- Industrial facilities (mining and processing, refineries, etc.);
- Energy-intensive facilities (Industrial greenhouses, large shopping and leisure centers, etc).
Specifications*
|
Main Specifications |
|
|
Rated current of input circuit |
in accordance with the questionnaire or technical requirements |
|
Rated current of section breaker in accordance |
with the questionnaire or technical requirements |
|
maximum short-circuit current |
no more than 100 kA |
|
Rated supply voltage |
380V |
|
Output voltage |
380V |
|
Number of switchable power supplies |
2 |
|
Number of sections[1] |
2 |
|
Number of input/output phases |
3/3 |
|
Degree of protection in accordance with GOST 14254-963 |
IP20, IP31, IP54, IP55 |
|
Insulation resistance tested at 500V |
More than 500 Kohm |
|
Auxiliary NO/NC contact[2] |
available |
|
Frequency |
50 ± 15% |
|
Grounding system |
TN-C, TN-C-S, TN-S |
|
Type of input circuit conductors |
in accordance with the questionnaire or technical requirements |
|
Type of outgoing circuit conductors |
in accordance with the questionnaire or technical requirements |
|
Dimensions HxWxD |
in accordance with the questionnaire or technical requirements |
|
Materials consumption* |
no more than 500 kg |
|
Terms and Conditions of operation in accordance with GOST 15150 |
УХЛ 4 |
* The values are specified for a single section
* Product specifications and completing units can be changed in accordance with the technical requirements of the customer.
This information is introductory and can be changed without notice.
Selection of technical specifications for circuit breakers and main distribution buses installed in the main switchboard
|
Supply transformer power S, kVA |
Rated current of input device, A |
Rated current of sectional unit, A |
Short-circuit current, real value, kA |
Rated current of main distribution buses IP<31, А |
The cross section of the main distribution copper buses, mm |
|
oily |
|||||
|
400 |
800 |
630 |
11.5 |
808.2903 |
1х40х10 |
|
630 |
1250 |
1000 (800) |
18.2 |
1273.057 |
1х60х10 |
|
1000 |
2000 |
1600 (1250) |
28.9 |
2020.726 |
1х100х10 |
|
1250 |
2500 |
2000 (1600) |
36 |
2525.907 |
2х80х10 |
|
1600 |
3200 |
2500 (2000) |
46.2 |
3233.161 |
2х100х10 |
|
2000 |
4000 |
3200 (2500) |
57.7 |
4041.452 |
3х100х10 |
|
2500 |
5000 |
4000 (3200) |
72.2 |
5051.815 |
4х100х10 |
|
dry |
|||||
|
400 |
800 |
630 |
9.6 |
692.8203 |
1х40х10 |
|
630 |
1250 |
1000 (800) |
15.2 |
1091.192 |
1х60х10 |
|
1000 |
2000 |
1600 (1250) |
24 |
1732.051 |
1х100х10 |
|
(1х80х10) |
|||||
|
1250 |
2500 |
2000 (1600) |
30 |
2165.063 |
2х80х10 |
|
(2х60х10) |
|||||
|
1600 |
3200 |
2500 (2000) |
38.5 |
2771.281 |
2х100х10 |
|
(2х80х10) |
|||||
|
2000 |
4000 |
3200 (2500) |
48.1 |
3464.101 |
2х120х10 |
|
2500 |
5000 |
4000 (3200) |
60.1 |
4330.127 |
3х120х10 |
type designation for MSB
|
ГРЩ-Х-ХХ-ХХХХ-У3.1IPХХ |
|
|
ГРЩ |
Main switchboard |
|
Х |
Panel designation: |
|
ХХ |
Number of typical circuit |
|
ХХХХ |
Panel rated current |
|
У3.1 |
Climate version according to GOST 15150-69 |
|
IPХХ |
Degree of protection in accordance with GOST 14254-96 |
MSB for 2 sections with a section breaker
MSB for 2 sections with ATS
