ESAB Heliarc 250 AC/DC Power Supply for 50 HZ. Service Troubleshooting instruction

Brand: ESAB

Model: Heliarc 250 AC/DC Power Supply for 50 HZ. Service

Type: Troubleshooting instruction

ESAB Heliarc 250 AC/DC Power Supply for 50 HZ. Service is a versatile welding machine designed for professional welding applications. It offers precise welding control and a wide range of features, making it ideal for both TIG and stick welding. With a rated output of 250 amps at 30 volts, it provides ample power for welding various materials. The power factor correction ensures efficient energy usage, and the auxiliary power output allows for powering additional equipment.

Supplement To Form 15-047

F-15-049

March, 1995

I. GENERAL

This supplement covers the Heliarc 250 AC/DC Power

Source with "power factor correction" specifically de-

signed for 220/380/415 Volt -- 50 Hertz service. It is

identical to the standard Heliarc 250 AC/DC (P/N 31310)

unit covered in Form 15-047 except for the following:

IMPORTANT

As shipped from the factory, all 50 Hz units are hooked-

up to operate from a 415 volt input. If your input require-

ments do not match the factory-shipped provision, the

following data should be heeded:

You must change the input terminal board (TB) volt-

age links to match your actual primary input voltage -

- as described in Section II-C of this supplement.

A. Replacement Parts:

Main Transformer (MTR) - P/N 31318 replaces P/N

31313.

Terminal Board Assy. (TB) - P/N 680434 replaces P/

N 680047.

Fan Motor (FM) - P/N 2062301 replaces P/N 2062340.

II. Form 15-047 is applicable to this unit except

as follows:

A. Revised Specification following:

Rated Output@ 250 Amps @ 30 Volts

40% Duty Cycle AC/DC, Tig/Stick

Open Circuit Voltage 79 Volts AC/72 Volts DC

Output Welding Current AC/DC

Current Low Range 5 to 60 Amps

Range in High Range 15 to 320 Amps

Amperes

Input Voltage 220/380/415 VAC,

1 Ph., 50 Hz.

Input Current @ Voltage 220 380 415

Rated Load in Amps Full Load 78 47 38

Power Factor @ Rated Load Approx. 76%

Auxiliary Power Output 115 VAC, 15 Amp., 50 Hz.

Dimensions: Width 16-inches 406 mm

Depth 30-inches 762 mm

Height 22-inches 559 mm

Weight 385 lbs. 175 kg

Input Requirements Input & Gnd. Time-Delay

Conductor Fuse Size

Volts Amps. CU/AWG Amps.

220 78 3 125

380 47 8 70

415 38 8 60

C. Primary Voltage Changeover Connections

As mentioned previously, the primary windings of the

main transformer are factory connected for 415 volt op-

eration. These connections are made by using

reconnectable links on the voltage changeover terminal

board for the main transformer. This unit's terminal board

(illustrated following) is silkscreened to show the avail-

able primary voltage connections which can be used.

Customer's Input

Cable Connection

I Double Links Provided

Voltage Changeover Terminal Board (TB)

D. Wiring Diagram -- Use revised portions contained

herein.

E. Schematic Diagram -- Use revised portions con-

tained herein.

Revised Table for Recommended Input Conductors

and Line Fuses.

Heliarc 250 AC/DC POWER SUPPLY

for 50 HZ. SERVICE

ESAB P/N 31320

L-TEC P/N 35623

Be sure this information reaches the operator.

You can get extra copies through your supplier.

220

415

220

380

415

220

380

ESAB Heliarc 250 AC/DC Power Supply for 50 HZ. Service Troubleshooting instruction

ESAB Heliarc 250 AC/DC Power Supply for 50 HZ. Service Troubleshooting instruction

ESAB Heliarc 250 AC/DC Power Supply for 50 HZ. Service Troubleshooting instruction

Related papers

Other documents