Blog — an engineer's perspective
Practical materials from LK Energy engineers: switchgear equipment, relay protection and automation schemes, substations, documentation and choosing a contractor.
Bolted Connections for Current-Carrying Busbars: Why Reliability Depends on Contact Pressure, Not Bolt Grade
Why an 8.8 bolt isn't always better than a 5.8, and how tightening torque and a Belleville washer save busbar contacts from overheating. An engineering breakdown from the shop floor
RP, RTP, TP — What's the Difference and Which Solution to Choose
RP, RTP, and TP/KTP: definitions, a comparison table, and selection logic — transformation, standard switchgear cubicles, application scope. A reference guide for design engineers.
How to Choose a Protection and Automation Scheme for a 10 kV Switchgear Cubicle: Protection Functions and Terminals
Protection functions for 10 kV cubicles — incomer, feeder, bus coupler, VT, auxiliary transformer: overcurrent protection, instantaneous cutoff, earth-fault protection, automatic transfer switching — and RS83 series terminals in LK Energy's standard solutions.
How to Fill Out the Questionnaire for a KTP or KSO: A Step-by-Step Guide
A step-by-step guide to the questionnaire for a KTP or KSO: network parameters, cubicle composition, switching devices and protection, metering, design execution, and common mistakes.
A Cheap Solar Power Plant Bid: Where the Contractor Cuts the Budget — and Why the Plant Underdelivers Power at Peak for Years
Where a contractor cuts the budget on a solar power plant and why the plant underdelivers power at peak. An 11-point checklist for vetting a project before signing. Experience from LK Energy service, Odesa.
Industrial solar power plant project: what's included and which documents you need
What goes into an industrial solar plant project, which sections it includes and which documents and permits you need. Engineering-grade, in plain language.
Industrial solar plant for self-consumption: why it's sized to your load profile
Why an industrial solar plant is sized to your load profile, what self-consumption delivers and when storage is needed. Engineering-based, no promises.
Industrial 4.95 MW solar plant with energy storage in Odesa region: LK Energy case study
An industrial 4.95 MW solar power plant (grid-connection capacity) with a ~20 MWh energy storage system in Odesa region. LK Energy delivered the entire electrical scope turnkey — from detailed design to grid connection, with switchgear of its own manufacture. Project scale: 6.4 MW (DC) of PV modules on a site of about 10 hectares.
Grid Connection for a Solar Plant: Technical Conditions, Steps, Documents
How to connect a solar plant to the grid: when technical conditions are needed and when not, which documents to file, statutory terms and the connection fee.
Solar Power Plant Design: What It Actually Looks Like (with PDF Examples)
What a solar plant design set looks like: contents of the set, the single-line diagram, sample sheets. Real LK typical solutions in PDF — free to download.
What Is a Solar Plant (SES): How a Solar Power Plant Works, in Plain Terms
SES stands for solar power plant. In plain terms: what it consists of, how it works, how grid-tie differs from hybrid, and what output depends on.
Free checklist · PDF
How to choose an industrial solar contractor: an 8-point checklist
A practical checklist for owners and managers: what to look at, which questions to ask and where the risks hide when you build a solar plant from 30 kW to several MW.
- 8 criteria for choosing a contractor — with “why it matters” notes and red flags;
- questions worth asking before signing the contract;
- how to tell a design “for your load profile” from one “for your roof area”;
- what to check about grid connection, warranty and service.
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