Distribution, Transfer, & Paralleling Switchgear Products

• Low & Medium Voltage (208V-38kV) Switchgear
Integrated Systems
• Generated Power Control Panels

Industrial

Commercial

Home » Power System Products
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Load Transfer Switchgear

APT has an expansive offering of Automatic Load Transfer Switchgear (ATS) that are used to switch power from a normal source to an emergency source. From Open Transition Transfer to Closed Transition Transfer and soft loading/unloading options, our APT Automatic Transfer Switchgear will allow facilities to switch between normal and emergency power seamlessly to fit in any footprint (FAC-Series).

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Automatic Paralleling Switchgear

APT Engineered To Order Automatic Paralleling Switchgear Controls can be designed to operate in either medium or low voltage and is used in applications which requires the operation of multiple generators in parallel only, generators in parallel with a utility source, or multiple utility sources in parallel. With APT's "N" Generator Paralleling Control Module (GP), Utility Paralleling Control Module (UP), AdAPTor 2 Generator Only Paralleling Control Module (A2), or CAT Power Module Paralleling Control Module (PM), there is a paralleling controller for every application.

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Equipment Buildings, Walk-in & Skid-Mounted Switchgear

APT is one of few leading manufacturers that produces switchgear, equipment buildings, and software controlled automation systems to form an integrated walk-in switchgear power system in either an insulated equipment building (PwrHouse) or an ISO container based switchgear building (PwrContainer) for easy shipping and rapid deployment power systems.

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Medium Voltage Metal-Clad Switchgear

APT's flagship UL listed Medium Voltage (5kV – 15kV) Metal-Clad Switchgear (15A-Series) provides a feature packed traditional draw-out vacuum circuit breaker switchgear for utility intertie, utility/generator automatic/manual paralleling, peak shaving, main-tie-main, and automatic transfer switchgear.

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Medium Voltage Metal Enclosed Switchgear

APT Medium Voltage (2.4kV – 38kV) Metal Enclosed Switchgear can be built for both indoor and outdoor installations. Available in both full draw-out size (MEA-Series), compact size (MED-Series), and ultra-compact size (FAC-Series) featuring vacuum circuit breakers, it offers the ultimate in extra safety safeguards and flexibility with options available to meet virtually any power system needs.

Low Voltage Switchboards & Control Switchgear

APT Low Voltage (208V, 480V, 575V, 600V, 690V) Switchboards & Control Switchgear (SGU & SBU-Series) can be used in Prime Power or an Emergency Power applications which requires operation of multiple generators in parallel. APT Switchgear offers seamless transfer of electrical loads from the utility to the generators and vice versa in conjunction with automatic standby operation.

Grounding Systems

APT Low Resistance Grounding System Neutral Grounding Resistors (LZR-Series), High Resistance Grounding System Transformer-Resistor Systems (HZR-Series), Low & High Impedance Grounding Reactors (ZGR-Series), and Solar Photovoltaic Effective Grounding Systems (SolarGround-Series) can be used to provide effective grounding for medium voltage transformers, generators, and ungrounded power systems.

Generator / Load Bank Quick Connection

APT Generator / Load Bank Quick Connection Tap Box (WM2-Series), Switchboard (FS2-Series), or Medium Voltage Switchgear (MF2-Series) is your best solution for a quick way to connect a rental generator set or load bank to your facility. APT offers low voltage floor-standing or wall-mount designs, ranging from 400A to 4000A, and optional features including circuit breakers, phase rotation monitoring, ground fault monitoring, ground fault monitoring, manual transfer, and various enclosure options.

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Surge Protection

The APT Surge Snubber (SurgeStop+) is designed to protect the insulation of medium voltage generators, transformers, and motors by reducing the rate of rise of the surge wave in the event of switching or lightning surges.

Engineered Power Systems

APT has you covered from primary utility intertie to backup generator paralleling, to unit substations all the way down to point of use panelboards. Our Engineered Power Systems offings consist of Traditional AC Balance of Plant Power Distribution Systems (APS), Solar Power AC Collection, Distribution, Grid-Tie Switchgear Systems (BrightPwr), Microgrid Sustainable Energy Systems (APTGrid), Combined Heat, Power, & Air Handling Co-generation Switchgear Control Systems (CHPSA), Power Converter & Conditioner Motor-Generator Systems (RotoVerter), and Battery Energy Storage System (EnerStore). Let APT be your single source for all components of your power system project no matter how complex!

APT Microgrid & Master Controls

APT Engineered To Order Switchgear Microgrids and Switchgear Master Controls can be designed to operate in either medium or low voltage and is used in applications which require a Virtual Remote Switchgear SCADA System (APTView), Load Shed/Load Add Control (LS), Load Sense Demand Control (LD), Island Mode Control (IM), Utility Intertie Control (UI), Utility Peak Shaving Control (PS), Import/Export Control (IE), or Microgrid Control (MG).

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Unit Substations & Transformers​

APT compact single ended & double ended unit substations. Substation dry type & pad mount oil-filled transformers (PTX-Series). ISO container based transformer modules (PwrContainerT). Close-coupled Medium Voltage Switchgear with Transformer & Low Voltage Switchboard (MTL-Series).

Arc Flash Mitigation Switchgear

APT Custom Arc Flash Mitigation Switchgear (ArCrypt-Series) is available in low & medium voltage applications for areas where traditional arc resistant switchgear does not fit.

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APT Transfer
Switch Controls

APT Engineered To Order Load Transfer Switchgear Controls can be designed to operate in either medium or low voltage and is used in applications which require Manual Non-Automatic Open Transition Transfer (MT), "N+1" Redundant Back-up Generator Automatic Transfer, Automatic Open Transition (ATO), Automatic Closed Transition (ATC), Soft-loading/Unloading (SL), Bypass/Isolation (BI), with your choice of Time-Delay Automatic Return to Normal (AR) or Non-Automatic Operator Supervised Return to Normal (NA) operation. Automatic Transfer Control Modules allow for the bumpless transfer of electrical loads via automatic standby operation.​

Industrial Control Panels

APT offers a Industrial Control Panels in flexible configurations for your application. Annunciation Panels (PowerAdvisor-Series) can be provided in a separate control cabinet, or as an integral part of an APT system. Whether it is to start a motor (MotorGo-series), or provide power measurements and metering (PowerSense-Series), APT has the Industrial Control Panel to fit your application.

Kits & Accessories

A variety of Kits & Accessories are available from APT for your power system equipment.​