Related Electrical Trade Topics:  3Phase Service, Aerial Electrical Cables, Utility Meter Separations, Electrical Phase Changer, Rotary Phase Converter and Buss Duct.
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Three Phase, Two Phase, Single Phase, Service Entrance Power Panels and Upgrades.
    Electrical Power Service - Expert for Hire  
Solutions for Two Phase Electrical Services.
My services begin with powerfully good information, a good price, then hard work.  Two Phase Electrical Power began very early for large buildings. Originally known as a polyphase alternating current electric power distribution system. Two circuits were used with four wires, two for each phase. Some early two-phase generators had two complete rotor and field assemblies, with windings physically offset to provide two-phase power. By the early 1900's, two-phase power was superseded with three phases except for commercial distribution in center city Philadelphia. PECO Energy has continued the service due to the difficulty in changing the internal electrical systems inside all the buildings that still depend on it.
Call us for Modifications, Transformers, Converters for Commercial and Industrial.  
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Examples of jobs by Able Group Inc. on Three Phase Power

Two Phase Problem Solver
with free over the phone help.

Over-Crowded Conditions.
Future Equipment Power Availability.
Hazardous Conditions.
Changes and/or Relocations.
Temporary Connections - Power Right Now.
Emergency Service.

Transformers, Customized panels, 
Power Trough and Buss Duct.
Fabricated items for any purpose.

Two-Phase Electric Service?   Ask me about it.

Many properties in the city are stuck with the oldest type of commercial electrical service "two-phase".
This was the norm 100 years ago, many properties are permanently wired for it so it remains active today.

Ask us about ways to deal with your electrical service limitations. We can provide the circuits required for any new equipment.  Call us about aerial or underground utility connections for service entrance power panels. Hard to find circuit breakers, motors and control panels. Two-Phase electrical service experts for elevator motors and special equipment. High reach bucket truck service. Our Electrical Service Upgrades Include:
200 amp, 400 amp, 800 amp to 2000 amp.
Voltages - 4160v, 480v., 277v. 208v. 120v. Facility Services for Apartments, Electrical, Plumbing, Heating, Air-Conditioning.

Economical Concern for Your Property. A. to Z.
Electrical Power Info and and costs by email,

Transformers
Step up, step down,
buck-boost.

The ratio of the peak voltages and peak currents in the primary and secondary windings are determined by the ratio of the number of turns in the primary and secondary windings. The latter ratio is usually called the turn ratio of the transformer. If the secondary winding contains less turns than the primary winding, the peak voltage in the secondary circuit is less than that of the primary circuit.

Let me be your in-house electrician.
I know the old-school electrical ways - Keeping the cost down!
I make repairs to fused disconnects, magnetic motor starters, electromagnetically operated contacts, push buttons for equipment - start and stop. I do the research needed for the connected motor load and particular control circuits with momentary contact devices. Connections to the coil of the magnetic motor starter performs this start and stop function. A 3-pole full-voltage magnetic motor starter is made up of the following components: a set of stationary contacts, a set of movable contacts, pressure springs, a solenoid coil, a stationary electromagnet, a set of magnetic shading coils, and the moving armature.

This photo is typical of an old, fused, five wire, two-phase service.

A "Phase Converter" is the most cost effective way to produce three phase power from any electrical service.

Basically it's an electrical motor / generator. Single phase input. Three phase output.

Center City Philadelphia - What to do when 3 Phase is needed? The answer -  Three Phase Converters. You can generate 3 phase power with a Rotary Phase Converter.


Other Notes: A four-wire system with symmetrical voltages between phase and neutral is obtained when the neutral is connected to the "common star point" of an all supply windings. All three phases will have the same magnitude of voltages to the neutral in such a system. Other non-symmetrical systems have been used. In a high-leg delta system, one winding of a delta transformer feeding the system is center-tapped. This setup produces three voltages. If the voltage between center tap and the two adjacent phases is 100%, the voltage across any two phases is 200% and neutral to "high leg". Most 3-wire distribution systems need one less conductor and help redistribute unbalanced loading during transformation going back to the generation source. The 4-wire wye neutral wire is for more voltage selections. Faults on one phase to ground will cause a protection event locally and not involve other phases or other connected equipment.
Our Service Upgrade Package includes - Removal of all existing electrical service equipment, cables, fuse boxes, meter socket, etc. Furnish & Install a NEW Exterior Cable Drop (overhead type service), Meter Socket, Entrance cable, Circuit Breaker Panel, Circuit Breakers for all circuits and labeled accurately, Code Required Grounding, Final Connections, Clean-up and as always ALL TRASH TAKEN AWAY.

Electrical primary and secondary circuits - changes and upgrades. Aerial or underground utility connections for service entrance power panels. Hard to find circuit breakers, motors and control panels. Two-Phase electrical service experts for elevator motors and special equipment. High reach bucket truck service.  We are located in Havertown, PA. We cover areas surrounding:  Delaware County, Chester County, Montgomery County, Philadelphia, PA. All parking lot electrically related construction. Need a electrical contractor for multiple properties? Contact us for circuit breakers, fused disconnects, electrician, transformer. Electrical safety inspections checking your circuit breakers, GFI receptacles, grounding rods and cold water pipe grounding. We are installers for: main lug panel, cadmium connectors, MC wire, SER cable, SEU cable, twist-lock receptacles, power poles and floor receptacles for your mid-floor electrical needs.
Check Out these links to our other pages:
Electrical Contractor - Havertown, PA
4160 Volts, Primary Electrical Service - areas around Philadelphia and vicinity.
Transformers - 480V. 277V. 208V. 120V. Wye, Delta, Philadelphia.
Two Phase Electrical Service, Philadelphia, PA
Mechanical and Motor Work, Electrical Equipment, Cutting Energy Costs, Electric Service Upgrades Online Estimating.

Contact us for more info on three phase, two phase, single phase electricals. Servicing properties around center city Philadelphia.