Generator AC Lead Connections

Standby Generator Sets

General Information

See “Voltage Codes”. This generator may be rated at any one of three voltages, either single-phase or three-phase. The electrical wires in the unit’s AC con- nection (lower) panel should be installed according to the number of leads and the voltage/phase required for the application. If there are any questions regard- ing lead connection, refer to the wiring diagrams at the back of this manual.

Voltage codes apply to the type of stator assembly installed on a particular generator.

FOUR-LEAD, SINGLE-PHASE STATOR

Four-lead generators (see Figure 7.1) are designed to supply electrical loads with voltage code “A” (240V, 1-phase, 60 Hz). Electrical power is produced in the stator power windings. These windings were con- nected at the factory to the main circuit breaker as shown in Figure 7.1.

The rated voltage between each circuit breaker ter- minal is 240V. The rated voltage between each circuit breaker terminal and the neutral point 00 is 120V.

Figure 7.1 — Four-lead, Single-phase Stator

ALTERNATOR POWER WINDING CONNECTIONS

3-PHASE ALTERNATORS

The generator is designed to supply 3-phase electri- cal loads. Electric power is produced in the alterna- tor power windings. These windings were connected at the factory to the main circuit breaker with a “Y” configuration as shown in Figures 7.2 and 7.3.

The rated voltage between circuit breaker terminals E1-E2, E1-E3 and E2-E3 is either 480V or 208V depending on the model.

The rated voltage between each circuit breaker termi- nal and the neutral point 00 is either 277V or 120V depending on the model.

Figure 7.2 — Stator Power Winding

Connections - 3-phase, 277/480V (6 Lead)

S1	E1
INTERNAL
CONNECTIONS
			L-L
S6	S4
		NEUTRAL
		NEUTRAL
	S5
E3 S3		S2	E2
		S2	E2

L-N

Figure 7.3 — Stator Power Winding

Connections - 3-phase, 120/208V (6 Lead)

S1 S1

	S4		S4		L-L
				00 (NEUTRAL)
	S6		S5

S3	S6	S5		S2

E3	S3			E2
				S2

L-N

7-1

08/05

0 .Rev ACConn001

005220-0 specifications

Generac Power Systems has made a name for itself in the world of backup and portable power solutions, and the Generac 005220-0 is no exception. This advanced generator is engineered for reliability and efficiency, making it an ideal choice for home and business owners who require a dependable source of power during outages.

One of the standout features of the Generac 005220-0 is its powerful Generac OHV engine, designed for optimal performance and longevity. This four-stroke engine provides ample power, ensuring that essential appliances and systems can continue to operate without interruption during power failures. With a 7,500 running watt and 9,375 starting watt capacity, it can handle a significant load, making it suitable for various applications, from powering essential home appliances to running tools on job sites.

Additionally, the 005220-0 is equipped with a large, durable 9.5-gallon fuel tank, allowing for extended run times. Depending on the load, users can expect several hours of operation without needing to refuel, which is a critical consideration for emergencies. The economical fuel consumption is a plus, providing significant runtime while minimizing costs.

In terms of technology, the Generac 005220-0 utilizes a variety of features that enhance its functionality and ease of use. The integrated Control Panel includes multiple outlets, enabling users to connect multiple devices simultaneously. Further, it comes with a digital hour meter, which helps track maintenance intervals and runtime, ensuring that the generator remains in optimal working condition.

Safety is a priority with the 005220-0, as it incorporates low-oil shutdown technology, which automatically turns off the engine when oil levels are dangerously low. This feature prevents potential engine damage, extending the lifespan of the generator. Additionally, it is equipped with a circuit breaker, protecting against overloads, thereby safeguarding both the generator and connected devices.

One of the key characteristics of the Generac 005220-0 is its portability. The generator is designed with a sturdy frame and comes with never-flat wheels and a folding handle, making it easy to transport to various locations as needed.

In summary, the Generac 005220-0 stands out for its powerful performance, extended runtime, user-friendly features, and safety attributes. Whether for home backup or job site power, it provides confidence and reliability, ensuring that power needs are met even in challenging circumstances.

Generac Power Systems 005220-0 Generator AC Lead Connections, FOUR-LEAD, SINGLE-PHASE Stator

Models: 005220-0