ATS, MTS & Generator Synchronising Panels

Q: Why is 4-pole switching recommended for ATS panels in Kenya?

4-pole switching completely isolates the neutral conductor between utility and generator. This prevents dangerous circulating neutral currents, avoids nuisance tripping of Earth leakage relays, and ensures clean earthing references.

Q: What is closed-transition transfer?

Closed-transition (make-before-break) synchronises the generator to the utility grid for a fraction of a second before opening the incoming breaker, allowing zero-power-interruption return to utility without flickering lights.

Overview

Automatic Transfer Switches & Generator Control

Nairobi Power Engineers manufactures custom Automatic Transfer Switch (ATS) panels, Manual Transfer Switch (MTS) boards, and multi-generator synchronising switchboards from 63 A to 4000 A. Our panels ensure seamless transition between utility grid (KPLC) and standby diesel generators or solar hybrid sources.

Powered by industry-leading Lovato Electric ATL series automatic transfer controllers (ATL600, ATL800, ATL900), our ATS panels provide precision voltage sensing, adjustable transfer timers, generator exercise routines, and motorized breaker/contactor mechanical interlocks.

Product Lineup

Equipment & Range Highlights

Lovato ATL Series • ATS Controllers

Lovato ATL Automatic Transfer Controllers

Microprocessor automatic transfer switch controllers with graphic LCD, dual power supply input, 3-phase sensing, and Modbus/Ethernet.

ModelsATL600 / ATL800 / ATL900

SourcesUtility + Gen / Dual Gen

CommsRS485 / NFC / Optical

Lovato GL Series • Changeover

Lovato Motorized & Manual Changeover Switches

Heavy-duty 4-pole changeover switches with motorized drive mechanisms, mechanical interlocks, and emergency manual operating handles.

Rating160 A – 3150 A

Poles4P (Switched Neutral)

CategoryAC-23A Heavy Inductive

System Specs

Transfer Switch Engineering Specifications

Parameter	ATS Panel Specification
Current Capacity Spectrum	63 A up to 4000 A (4-pole switching)
Switching Elements	Motorized Switch Disconnectors, Interlocked Contactors, or Motorized ACBs
Control Intelligence	Lovato ATL600 / ATL800, Deep Sea Electronics (DSE), ComAp InteliLite
Sensing Capabilities	True RMS over/undervoltage, phase failure, asymmetry, frequency drift
Transfer Time	Standard 1 – 3s, High-Speed < 100ms, Closed Transition (Make-Before-Break)
Enclosure Rating	IP43 / IP54 Sheet Steel RAL 7035 with inner deadfront safety doors

Key Features

Engineering & Build Highlights

100% mechanical and electrical interlocking prevents dangerous simultaneous mains and generator closure
Automatic weekly generator test exercise timer with on-load or off-load selectable modes
Phase failure, voltage asymmetry, and frequency out-of-bounds detection on both supply sources
Manual bypass switch configuration allowing full maintenance of ATS components during live operation
Integrated trickle battery chargers (Lovato BCE series) and engine coolant heater power feeds
Optional priority load shedding relays to prevent generator stalling upon sudden step-load transfers

Applications

Target Applications & Sectors

Hospitals, surgical theatres & intensive care unitsData centres, financial servers & telecoms hubsCommercial shopping malls & mixed-use towersIndustrial manufacturing & packaging facilitiesBorehole & municipal water pumping schemesHotels, resorts & residential complexes

FAQs