Generator ATS panels
Transfer solutions for mains–generator systems with source monitoring, generator readiness logic, safe load transfer and clear operating indication.
Engineering power transfer solutions from Ukraine
Automatic Transfer Switches and Power Transfer Solutions
STAVR provides engineered automatic transfer switch systems for critical power applications: generator ATS panels, LV switchboards with ATS, no-break transfer solutions, UPS and BESS switching, reconstruction and service of existing ATS panels.
What STAVR means
In Ukraine, “AVR” is commonly used for automatic transfer systems. In international terminology, this is close to an Automatic Transfer Switch (ATS), but STAVR treats it not as a single component, but as a complete low-voltage switchgear solution for a real facility.
STAVR is designed as a project-specific electrical device: power switching equipment, control logic,
interlocks, indication, monitoring options, documentation and service responsibility are considered together.
Main solutions
LV switchboards with ATS
Integrated incoming and distribution switchboards with reserve power input, protection devices, metering, indication and optional monitoring.
No-break / closed transition concepts
Solutions for applications where the transfer time and transfer logic are critical and must be evaluated together with the sources and the load.
UPS and BESS transfer
Switching concepts for UPS bypass systems, battery energy storage systems, inverters, generators and critical loads.
Three-source ATS
Power transfer schemes for mains / generator / generator, mains / mains / generator, two bus sections plus generator and similar architectures.
Surge protection integration
SPD selection and integration as a part of the complete power supply system, not just as an isolated module in the cabinet.
LV switchboards with ATS
Incoming, transfer and distribution sections are considered as one coordinated switchgear system.
Control and indication
The operator must clearly understand the source status, transfer state and reason of an event.
Generator, UPS and BESS logic
Transfer logic is matched with the real source architecture and the required operating priority.
Engineering approach
We start from the facility, not from a catalogue box
- source configuration and operating priorities;
- load type, starting currents and reserve source capability;
- neutral and earthing arrangement;
- short-circuit withstand and protection coordination;
- control logic, interlocks, indication and monitoring.
Designed for responsible power systems
STAVR solutions are intended for facilities where reserve power must be understandable, serviceable and safe in real operating conditions: industrial sites, data rooms, telecom, commercial buildings, infrastructure and private houses with generator or battery backup.
Reconstruction and service
ATS reconstruction
If the existing power part still has a resource, a full cabinet replacement is not always required. Often the correct solution is to upgrade the controller, transfer logic, interlocks, indication and monitoring.
ATS service
Service includes inspection, functional checks, thermal imaging diagnostics, evaluation of contact joints, controls, protection devices and recommendations for preventive repair.
Before reconstruction
Old control logic and unclear indication can create operational risk even if the power part is still usable.
After engineering upgrade
The goal is not cosmetic repair, but clear operating logic, serviceability and controlled transfer behaviour.
ATS service diagnostics
Service is based on inspection, functional checks and thermal imaging of power connections, protection devices and control circuits.
Thermal imaging control
Thermal inspection helps find overloaded connections, weak contact joints and components that require preventive attention.
Company and product identity
About STAVR
STAVR is the trademark of ENERGY SYSTEMS-LUDGER, a Ukrainian engineering company specializing in Automatic Transfer Switches (ATS), low-voltage switchgear assemblies and backup power solutions.
What is STAVR?
STAVR is a Ukrainian trademark for industrial Automatic Transfer Switch (ATS) systems owned by SC “ENERGY SYSTEMS-LUDGER”. Under the STAVR trademark, the company manufactures industrial ATS systems, low-voltage switchgear assemblies with ATS, and project-specific source-transfer solutions for industrial, commercial and infrastructure facilities.
Official legal entity:
SC “ENERGY SYSTEMS-LUDGER”
ДП «ЕНЕРГОСИСТЕМИ-ЛУДЖЕР»
Technical Specifications
STAVR low-voltage switchgear assemblies are manufactured in accordance with Technical Specifications TU U 31.2-25264473-001:2009.
Certificate of Conformity
The products are certified under the Ukrainian UkrSEPRO conformity assessment system.
Certificate of Conformity No. UA.PN.191.0756-26.
Developed, manufactured and tested in Ukraine.
Certificates and quality
ISO 9001 certified quality management system
The quality management system of SC “ENERGY SYSTEMS-LUDGER”, the manufacturer of STAVR equipment, is certified to DSTU EN ISO 9001:2018 (EN ISO 9001:2015, IDT; ISO 9001:2015, IDT).
Certification scope: manufacture of STAVR low-voltage switchgear assemblies, including Automatic Transfer Switch (ATS) units and incoming distribution switchboards with ATS.
Certificate No. 80108.СУЯ.053-25. Issued on 6 February 2025; the validity period stated in the certificate ends on 5 February 2028.
Contact
Send us your technical task
For a first evaluation, send a short description of the power supply scheme, source types, load current or power, photos of the existing panel if available, and the required operating logic.