ESAB Heliarc 350 Power Source for 50Hz. Service Troubleshooting instruction

Brand: ESAB

Model: Heliarc 350 Power Source for 50Hz. Service

Type: Troubleshooting instruction

SUPPLEMENT to Form 14-447

F-14-454-A

October, 1995

HELIARC

350 POWER SOURCE

for 50 Hz. SERVICE

ESAB .................P/N 35597

L-TEC.................P/N 35600

I. General

This supplement covers the HELIARC 350 Power Source

designed for 220/380//415 Volt—50 Hertz service. It is

identical to the Heliarc 350 units covered in Form 14-

447 except for the following:

IMPORTANT

As shipped from the factory, all units are hooked-

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

requirements do not match the factory-shipped pro-

visions, 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 insert.

A. Replacement Parts:

Main Transformer (MTR) - P/N 30163 replaces

P/N 30577.

Terminal Board Assy. (TB) - P/N 30166 replaces

P/N 680047.

II. Form 14-447 is applicable to this unit ex-

cept as follows;

A. Revised Specification following.

SPECIFICATIONS

NEMA Rated Output @ 300 Amps @ 32 Volts

60% Duty Cycle AC/DC, Tig/Stick

Open Circuit Voltage 79 VAC/72 VDC

Output Welding Current AC/DC

Current Low Range 5 K to 50 Amps

Range in High Range 20 to 380 Amps

Amperes

Input Voltage 220/380/415 VAC

1 Ph, 50 Hz.

Input Current @ Voltage* 220 380 415

Rated Load in w/o P.F.C.* 117 68 62

Amperes w/o P.F.C.* 90 52 48

Power Factor @ w/o P.F.C.* Approx. 71%

Rated Load with P.F.C.* Approx. 88%

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

Dimensions Width 22-3/4-in. 578 mm

Depth 32-in. 813 mm

Height 36-in. 914 mm

Weight Approx 620 lbs. 279 kg

* P.F.C. (power factor correction) is standard on these units.

K 3-amp. minimum with LOW AMP KIT, D.C. only.

B. Revised Table for Recommended Input Conduc-

tors and Line Fuses

C. Primary Voltage Changeover Connections

As mentioned previously, the primary windings of

the main transformer are factory connected for 415

volt operation. These connections are made by us-

ing reconnectable links on the voltage changeover

terminal board for the main transformer. This unit’s

terminal board (illustrated following) is silkscreened

to show the available primary voltage connections

which can be used.

Input Requirements Input & Gnd. Time-Delay

Amperes Conductor* Fuse Size

Volts 1 2 CU/AWG Amps.

Units Without Power Factor Correction.

220 117 169 No. 2/0 175

380 68 98 No. 3 125

415 62 89 No. 3 00

Units With Power Factor Correction.

220 90 130 No. 1 150

380 52 75 No. 4 100

415 48 69 No. 4 75

DC and AC balanced wave input current rating.

AC unbalanced wave input current rating.

* Sized per National Electric Code for 75° C rated conductors @ 30° C ambi-

ent using a 60% duty cycle based on the AC unbalanced wave ampere rat-

ings. Not more than three conductors in raceway or cable. Local codes should

be followed if they specify sizes other than those listed above.

D. Wiring diagram — Use revised portions con-

tained herein.

E. Schematic Diagram — Use revised portions con-

tained herein.

Be sure this information reaches the operator.

You can get extra copies through your supplier.

Voltage Changeover Terminal Board (TB)

CUSTOMER HOOKUP

Double Links

Customer’s Input

Cable Connection

F-14-454-A 10/95 Printed in U.S.A.

VIEW "A-A"

Rotated 180°

MTR

MOUNTED ON TOP

OF HRTR

Schematic Portions

Wiring Portions

POWER FACTOR

CORRECTION

T3-2

60UF

440V EACH

T3-1

220V

AX5 AX6

MTR

T-2

L-2

ROS

TB-1

CUSTOMER HOOKUP

SHOWN IN 415 VAC

ROS

TB-4

207.4V

189.3V

TB-8

TB-6

AH1

AH2

AH3 AH4

BX7

BX8

41.5V

83V

AX7

AX8

41.5V

TB3

ROS

L-3

T-3

220V

207.4V

TB5

TB7

BH4

BH3

BH2

BH1

189.3V

TB2

AX8

BX10

BX9

AX10

BX5

MTR

220V

BX6

CCW

R101

221K

BX4

AX3

T1-5

T1-3

AX4

15.0V

BX3

15.0V

T1-4

BALANCE

POT

15K

T4-2

T4-5

ESAB Heliarc 350 Power Source for 50Hz. Service Troubleshooting instruction

ESAB Heliarc 350 Power Source for 50Hz. Service Troubleshooting instruction

ESAB Heliarc 350 Power Source for 50Hz. Service Troubleshooting instruction

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