Substation «ISET» in concrete shell is a fully factory-ready transformer substation with one, two or more power transformers. Transformers can be either oil or dry, with epoxy resin insulation.
The reinforced concrete structure of the ISET substation consists of an aboveground part for equipment installation and an underground part for cabling.
The substation is equipped with all necessary auxiliary systems: heating, natural ventilation, lighting. If necessary, the substation can have forced ventilation, air conditioning, security and fire alarm systems.
As a standard, the power supply to the transformer substations is made by cable, with a bottom entry. Connection to an overhead power line is also possible.
ISET substation provides metering of electric energy.
It is possible to remotely control the switches on the LV and HV sides (option).
Advantages:
- Short installation time
- Small dimensions
- Customization.
- Safe maintenance
- Vandal-proof.
- Seismic withstand 9 points.
- Service life of ISET transformer substation is not less than 25 years.
Supply package:
- Aboveground substation modules with auxiliary networks
- Underground (cable) substation modules with cable ducts
- HV switchgear
- Power cable jumpers:
- Auxiliary power supply cabinets
- Transformer thermal protection panels (when ordering dry-type power transformers)
- Personal protection equipment set
- Technical documentation
Additional package:
- Remote control system
- Operational current system
- Fire alert system
- Security alarm system
- Air conditioning and forced ventilation system
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Power transformer capacity, kVA
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100-3150 |
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Rated voltage, HV side, kV
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6,10,20 |
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Rated voltage, LV side, kV
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0.4, 0.69 |
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Main busbars rated current, HV side, A
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630, 1250 |
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Main busbars rated current, LV side, A
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up to6300 |
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Rated peak withstand current, HV side, kA
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up to125 |
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Rated short-time withstand current, HV side, kA
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21 |
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Rated peak withstand current, LV side, kA
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up to 300 |
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Rated short-time withstand current, LV side, kA
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up to130 |
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Service life
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not less than 25 years |
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Ambient temperature, °С
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-60…+40°С |
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Fire resistance, by GOST 30247-94
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EI90 |
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Class of structural fire hazard
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С0 |
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Hazard class of building structures
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К0 |
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Category by explosion and fire hazard
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D |
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Premises category
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В4 |
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Fire resistance degree
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IV (II-III by customer request) |
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Transformer type
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oil/dry |
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Seismic withstand by scale MSK-64
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Up to 9 points |
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Technical requirements
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ТU 3412-001-26286057-2019 |
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Climatic version, resistance to external environments. GOST 15150-69 and GOST 15543.1-89
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U1 and UHL1 |