Hobart 5T28-400CL Manuals

Manuals and User Guides for Hobart 5T28-400CL. We have 1 Hobart 5T28-400CL manual available for free PDF download: Operation And Maintenance Manual

Hobart 5T28-400CL Operation And Maintenance Manual (110 pages)

3-phase Solid State Transformer-Rectifiers

Brand: Hobart | Category: Transformer | Size: 1 MB

Warranty
2
Shock Prevention
3
Fire and Explosion Prevention
4
Medical and First Aid Treatment
4
Table of Contents
7
Subject Chapter/Section Page
11
General
13
Scope
13
Purpose
13
Format
13
Paragraphing and Outlining
13
Page Numbering
14
How to Use the Manual
14
General
14
How to Locate Information
14
Table of Contents
14
List of Illustrations
14
References
14
Service
15
Section 1. Receipt of Equipment
17
Section 2. Installation
17
Section 2. Installation
21
Location
21
Internal Wiring Check
21
Connecting the Machine to Line Voltage
21
Grounding
22
Output Leads
23
Lubrication
23
Chapter 2. Description and Operation
25
Section 1. Description
25
General
25
Special Features
27
Optional Equipment
29
Detailed Description
29
General
29
Main Transformer
29
Control Transformer
30
Auxiliary Power Circuitry
30
Output Contactor Circuitry
30
Output Filter Circuitry
30
Front Panel Control Components
30
Output Meter
30
Input Contactor Switch with Light
32
Output Contactor Switch and Light
32
Overload Trip Light
32
Main SCR Heat Sink Assembly
32
Solid State Printed Circuit Control Board
34
Electronic Overvoltage/Overload Trip Circuit
34
Electronically Controlled Current Limit
34
Thermal Overload Trip
34
K.thermostatically Controlled Fan
34
L.primary Input Fuses
34
Section 2. Operation
37
General
37
Operation Preparation
37
Operation Procedure
37
Input Control Functions
37
Output Control Functions
37
Voltmeter
38
Output Current Limit
38
Chapter 3. Servicing
41
Section 1. Maintenance
41
General
41
Inspection
41
Lubrication
41
Parts Replacement
42
Minor Electrical Components
42
Major Electrical Components
42
Section 2. Inspection Check and Repair
43
General
43
Exterior Cables and Connections
43
Input and Output Cables
43
Cable Connections
43
Controls and Instruments
43
Voltmeter, Ammeter and Control Switches
43
Indicating Lights
43
Control Thermostats
44
Starting Current Limit Potentiometer
44
Contactors
44
Power Input Fuses
44
Major Components Check and Repair
46
A.main Power Transformer
46
Silicon Controlled Rectifier Assembly and Flyback Diode
46
Filter Choke and Capacitor Voltage Test
47
D.printed Circuit Control Board
47
Section 3. Calibration and Test of Pc Control Board
49
General
49
Printed Circuit Board Test Values and Adjustments
49
Section 4. Troubleshooting
53
General
53
Troubleshooting
53
Description
53
Use of the Troubleshooting Chart
53
Equipment for Troubleshooting
54
Safety
54
Voltages of Interest
54
SCR Malfunction Instructions
54
Normal SCR Malfunction Conditions
54
Severe SCR Malfunction Conditions
54
SCR Tests or Checks
55
Chapter 4. Illustrated Parts List
61
Section 1. Introduction
61
General
61
Purpose
61
Arrangement
61
Explanation of Parts List
61
Section 2. Manufacturer's Codes
63
Explanation of Manufacturer's (Vendor) Code List
63
Section 3. Parts List
65
Explanation of Parts List Arrangement
65
Symbols and Abbreviations
65
Section 4. Numerical Index
79
Explanation of Numerical Index
79
Chapter 5. Optional Equipment
83
Chapter 6. Manufacturer's Literature
85

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Hobart 5T28-400CL Operation And Maintenance Manual (110 pages)

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