Ground Wire, Motor Starting | Lincoln Electric SVM207-A instruction

A-8	INSTALLATION	A-8
A-8		A-8

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All auxiliary power is protected by circuit breakers with the following values:

The 120V has 20 amp circuit breakers for each duplex receptacle. The 240V has 50 amp circuit breakers for each hot lead going the 240V receptacle.

The 480V 3 phase circuit breaker / switch is a 3 phase, 15 amp circuit breaker.

Ground Wire

Periodically check the ground wire at plugs, power cords and auxiliary loads to ensure that the grounding circuit is intact and connected.

MOTOR STARTING

Most 1.5 hp AC single phase motors can be started if there is no load on the motor or other load connected to the machine, since the full load current rating of a

1.5hp motor is approximately 20 amperes (10 amperes for 240 volt motors). The motor may be run at full load when plugged into only one side of the duplex receptacle. Larger motors through 2 hp can be run pro- vided the receptacle rating as previously stated is not exceeded. This may necessitate 240V operation only.

The 480 volt 3 phase output of the RANGER® 3 PHASE is capable of running most 480VAC 3 phase motors up to 10HP. A 10HP motor must be started with no load on the motor and no other load connected to the machine, since the full load current of a 10HP 480VAC 3 phase motor is approximately 12.5 amps. Refer to the reconnect phase output to any load, the ground at the 3 phase receptacle is NOT the neutral of 3 phase connection, and should under no circum- stance be connected to the neutral of any 3 phase load.

STANDBY POWER CONNECTIONS

The RANGER® 3 PHASE is suitable for temporary, standby, or emergency power using the engine manu- facturer’s recommended maintenance schedule.

The RANGER® 3 PHASE can be permanently installed as a standby power unit for 240V-3 wire, sin- gle phase 40 ampere service.

WARNING

(Connections must be made by a licensed electrician who can determine how the 120/240V power can be adapted to the particular installation and comply with all applicable electrical codes.) The following informa- tion can be used as a guide by the electrician for most applications (refer also to the connection diagram shown in Figure A.1).

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1.Install a double pole, double throw switch between the power company meter and the premises dis- connect.

Switch rating must be the same or greater than the customer’s premises disconnect and service over- current protection.

2.Take necessary steps to assure load is limited to the capacity of the RANGER® 3 PHASE by installing a 40 amp 240V double pole circuit break- er. Maximum rated load for the 240V auxiliary is 40 amperes. Loading above 40 amperes will reduce output voltage below the allowable -10% of rated voltage which may damage appliances or other motor-driven equipment.

3.Install a 50 amp 120/240V plug (NEMA type 14-50) to the Double Pole Circuit Breaker using No. 8, 4 conductor cable of the desired length. (The 50 amp 120/240V plug is available in the optional plug kit.)

4.Plug this cable into the 50 amp 120/240V recepta- cle on the RANGER® 3 PHASE case front.

AUXILIARY POWER WHILE WELDING

Simultaneous welding and power loads are permitted by following Table I. The permissible currents shown assume that current is being drawn from either the 120V or 240V supply (not both at the same time). Also, the “Output Control” is set at “10” for maximum auxil- iary power.

TABLE A.1

SIMULTANEOUS WELDING AND POWER***

Output Selector	Permissible Power	Permissible Auxiliary
Setting	Watts (Unity Power	Current in Amperes
	Factor)	@ 120V *-or- @ 240V

Max. Stick or Wire
Feed Setting	None	0	0

145 Stick Setting	4500	38	23

90 Stick Setting	6500	54**	27

NO WELDING	9500	80**	40

*Each duplex receptacle is limited to 20 amps.

**Not to exceed 40A per 120VAC branch circuit

when splitting the 240 VAC output.

***Use of 3-Phase AC power is not recommended while welding.

INSTALLATION