Applicable place
It is suitable for urban public power distribution, high-rise
buildings, living quarters, industrial and mining enterprises, oil
fields and temporary construction of projects.
Overview
European type box substation(MV/LV Prefabricated Substations) is
also known as outdoor complete substation, also known as combined
substation, because it has the advantages of flexible combination,
easy transportation, migration, convenient installation, short
construction period, low operating cost, small footprint, no
pollution, maintenance-free, etc. , Received wide attention. In
rural power grid construction (reconstruction), it is widely used
in the construction and transformation of 10~110kV small and
medium-sized substations (distribution) substations, factories and
mines, and mobile operation substations in urban and rural areas,
because it is easy to penetrate into the load center and reduce the
power supply radius. , Improve the quality of terminal voltage,
especially suitable for rural power grid transformation, known as
the target mode of substation construction in the 21st century.
Use environmental conditions
1. The altitude does not exceed 1000m;
2. The highest ambient temperature should not exceed +40℃, and the
lowest should not be lower than -25℃;
The average temperature within a 24-hour period does not exceed
+35℃;
3. Outdoor wind speed does not exceed 35m/s;
4. The relative humidity of the air does not exceed 90% (+25℃);
5. The seismic horizontal acceleration is not more than 0.4m/s2,
and the vertical acceleration is not more than 0.2m/s2;
6. A place free from fire, explosion, serious pollution, chemical
corrosion and severe vibration.
Note: For special conditions of use, please negotiate with our
factory when ordering.
Standard
The prefabricated substation meets the standards of SD320-1992
"Box-type substation technical conditions" and GB/T17467-1998
"High-voltage/low-voltage prefabricated substation".
device installation
(1) The location of the box transformer should be close to the load
center. According to the load distribution of the district, the
load moment is calculated to determine the load center. The box
transformer should be installed near the load center. Power loss
≤12%, improve voltage quality Convenient operation and maintenance
(2) Strong vibrations and shocks are not allowed in the use
location of the box substation, and no large electromagnetic
induction intensity is allowed. For the buried circuit of the box
substation, the laying path of each circuit outlet should be
arranged, and the safety distance to the underground facilities
should be arranged. , And does not affect the long-term development
of the power supply area;
(3) The place of use must not have explosive dangerous substances,
and the surrounding medium must not contain gases that corrode
metals and destroy insulation and conductive media;
The main technical parameters
| The main technical parameters |
| Serial number | name | unit | High-voltage electrical appliances | transformer | Low-voltage electrical appliances |
| 1 | Rated voltage | KV | 6/10 | 6/0.4 10/0.4 | 0.4 |
| 2 | Rated Capacity | KVA | | 50-1600 | |
| 3 | Rated current | A | 200,400,630 | | 100-3200 |
| 4 | Rated short-circuit breaking current | A | Load switch 400-630 | | 15-63KV |
| KA | Combination switch depends on fuse | |
| 5 | Rated short-time withstand current | KA | 16,20(4S) | | 15(1S) |
| 30(1S) |
| 6 | Rated peak withstand current | KA | 31,5.50 | | 30 |
| 63 |
| 7 | Power frequency withstand voltage (1MIN) | KV | Relatively and alternately 32/42 | 25/35 (oil diffused) | ≤0.3,2 |
| Height port 36/48 | 20/28 (dry type) | >0.3,2.5 |
| 8 | Lightning impulse withstand voltage (peak value) | KV | Relatively and alternately 32/42 | 60/75 | |
| Isolated port 70/85 | |
| 9 | Cabinet protection level | | | IP44 | |
| 10 | Noise level | ab | | 55 | |
| 11 | Executive standard | | GB/T 17467 "High-voltage and low-voltage prefabricated substation" | | |
| DL/T537 "6-35KV box-type substation ordering technical conditions" | | |
