Concrete package transformer substation (BKTP)
Description & purpose
BKTP is a package transformer substation in a concrete enclosure. It receives 6(10) kV medium-voltage power, steps it down to 0.4 kV and distributes it to consumers. It is installed outdoors on a prepared foundation: the reinforced-concrete enclosure serves as both the housing and the building of the substation.
Why a concrete enclosure
- higher fire resistance and mechanical strength than metal enclosures;
- resistance to vandalism and environmental impact;
- more stable thermal conditions for the equipment in summer and winter;
- long enclosure service life without painting or anti-corrosion maintenance.
Configuration
A typical BKTP consists of a medium-voltage switchgear compartment, one or two power transformers, and a low-voltage switchgear compartment. The diagram, transformer ratings, protection devices and metering are selected for your facility — from a single-line diagram or a questionnaire.
We manufacture at our own factory in Odesa, perform factory testing, and arrange delivery and supervised installation across Ukraine. Related: substation construction, what BKTP means — in the glossary.
Composition and technical parameters of the 10(6)/0.4 kV block module
A BKTP rated 10(6)/0.4 kV is a factory-ready substation in a block module, which LK Energy Group manufactures at its own production facility in Odesa. It is designed to receive, transform and distribute electricity in 10(6) kV networks with 0.4 kV output supplied to consumers in the utility, industrial and agricultural sectors. Switching on the 10(6) kV side is performed with vacuum circuit breakers (SF6 gas-insulated equipment is not used).
The BKTP consists of: a block module (enclosure) with built-in compartments, a 10(6) kV switchgear, a power transformer, a 0.4 kV switchgear (low-voltage switchboard), cable compartments and grounding units. The enclosure degree of protection, power transformer rating, and ratings and currents (including short-circuit currents, busbar cross-section) — project-specific/TS.
| Parameter | Value |
|---|---|
| Rated voltage on HV side, kV | 10 (6) |
| Rated voltage on LV side, kV | 0.4 |
| Type of 10(6) kV switching device | vacuum circuit breaker (type project-specific) |
| Power transformer rating | project-specific/TS |
| Rated currents, short-circuit currents, busbar cross-section, degree of protection | project-specific/TS |
Need a substation with a 35 kV upper voltage? That is a separate engineered structure built to project — see 35/10(6) kV substation.
The warranty for BKTP is 2 years (extended to 5 years by agreement); enclosure metalwork — 10 years.
Which BKTP configuration your site needs
| Site condition | Configuration | What to send us |
|---|---|---|
| Consumers require power supply redundancy | Two-transformer scheme | List of loads and redundancy requirements |
| One group of consumers, no redundancy required | Single-transformer scheme | Single-line diagram or list of loads |
| Outdoor installation, fire resistance and vandal resistance required | Concrete enclosure (BKTP) | Installation site and project requirements |
| A lighter and usually cheaper solution is required | Metal enclosure (KTP) | Installation site and project requirements |
| The project already exists | Built to your diagram | Single-line diagram |
| There is no project | We select the scheme, ratings, protection and metering | Completed questionnaire or list of loads |
What the factory does and what we need from you
| Stage | What we do | What we need from you |
|---|---|---|
| Estimate | We select the diagram, transformer ratings, protection devices and metering | A single-line diagram or a questionnaire; if there is no diagram, a list of loads |
| Manufacturing | We manufacture at our own factory in Odesa | Approved configuration |
| Testing | We perform factory testing | — |
| Delivery | We arrange delivery across Ukraine | Site address, prepared foundation |
| Installation and commissioning | Supervised installation, commissioning and handover | Access to the site |
Standard solution: 10/0.4 kV KTP with LV switchgear — diagrams and questionnaires →
See also
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FAQ
How does a BKTP differ from a metal-enclosed substation?
How many transformers can a BKTP house?
What do you need from us for an estimate?
Do you perform installation and connection?
What does BKTP stand for?
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Concrete package transformer substation (BKTP)
Send us your single-line diagram or specification — we will estimate the configuration, lead time and price. Preliminary estimate within 24 business hours.
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