Howard Industries HI-111 Manuals

Manuals and User Guides for Howard Industries HI-111. We have 1 Howard Industries HI-111 manual available for free PDF download: Installation, Operation And Maintenance Manual

Howard Industries HI-111 Installation, Operation And Maintenance Manual

Howard Industries HI-111 Installation, Operation And Maintenance Manual (28 pages)

Submersible Three-Phase Transformers

Brand: Howard Industries | Category: Transformer | Size: 0 MB

Table of Contents

Table of Contents
3
Section 1: Introduction
5
Section 2: Receiving, Handling and Storage
6
Drawings and Documents
6
Lifting and Handling
6
Initial Inspection
6
Fluid Levels
7
Internal Inspection
7
Fluid Sampling
7
Transformer Storage
8
Section 3: Installation
9
Lifting and Handling
9
Jacking
9
Location and Mounting
9
Grounding
10
Primary and Secondary Connections
10
Primary Connections
10
Secondary Connections
10
Section 4: Inspection and Testing before and after Initial Ergization
10
Section 4: Inspection and Testing
11
Pre-Energization Inspection and Tests
11
Continuity and Winding Resistance Test
11
Ratio Test
11
Insulation Resistance Test
11
Tap Changer Setting
12
Series/Multiple and Delta/Wye Switch Settings
12
Grounding
12
Bolted Connections
12
Fluid Levels
12
Fluid Temperature
12
Accessory Wiring
12
Tank Finish
12
Tools
12
Internal Inspection
12
Post-Energization Inspection and Tests
13
Verifying Correct Voltage
13
Checking for Leaks
13
Observing Operation
13
Checking Gauges
13
Audible Sound
13
Section 5: Operation of Switching and Protective Devices
14
Tap Changer
15
Series/Multiple or Delta/Wye Switch
15
Fuses
16
Load-Break Switch Fuses
17
Other Switching and Protective Devices
18
Section 6: Accessories
19
Diagrammatic Nameplate
19
Fluid Level Gauge
19
Fluid Temperature Gauge
19
Filler Plug and Upper Filter Press Connection
19
Combination Drain and Bottom Filter Valve
19
Automatic Pressure Relief Valve and Pressure Relief Device
19
High-Voltage Bushings
20
Secondary Bushings
20
Other Accessory Devices
20
Section 7: Maintenance
21
Periodic Inspection
21
Inspection and Maintenance Checklist
21
Electrical Testing
22
Exterior Paint Finish
23
Fluid Leaks
23
Audible Sound Level
23
Other Accessory Devices
24
Sampling and Testing the Fluid
24
Filtering the Fluid
24
Removing or Lowering the Fluid
24
Filling with Fluid
24
Opening the Transformer Tank
25
Torque Guidelines
25
Table 1: Torque Guidelines for External Cabinet Fasteners
26
Table 2: Torque Guidelines for External Bushing Mounting Hardware
26
Table 3: Torque Guidelines for External Bushing Terminal Connections
26
Additional Maintenance Instructions
27
Repair Parts
27
Warranty Claims
27
Transformer Disposal
27
Table 4: Torque Guidelines for Accessories
27

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