An edition of Handbook of Electrical Methods
(1913)
Handbook of electrical methods
by The Electrical World.
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Collection of articles from Electrical World magazine on widely ranging electrical topics- thawing underground water pipes to three phase vector calculations. Distribution, generating, inside wiring, advertisement signs, transformers, motors, ground rods. Good line drawings.
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Subjects
Electrical engineering, Electric engineering, Distribution, generating, inside wiring, advertisement signs, transformers, ground rodsPlaces
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Book Details
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Table of Contents
CONTENTS
CHAPTER I General Notes page 1
Screen cover for manhole workers
Adapting manhole to new street grade
Notes on underground conduit construction
Thawing water-pipes with electricity
Thawing water-pipes without a transformer
Thawing a frozen pipe by electricity
Methods of soldering wires in terminal lugs
Soldered wire connections
Soldering with blow torch and iron
Test-board proof against crosses or shorts
Protecting gas pipes against electrolysis
A handy portable rheostat.
CHAPTER II Line Construction and Equipment page 15
A method of making up a ground wire
Byllesby companies adopt uniform method of grounding
Ground-wire shields to prevent induction trouble
Grounding secondaries at Denver
Methods of grounding transformer secondaries and secondary networks
Notes on ground connections
Pole height Estimator
Inspecting inaccessible places with optical aids
Battery search-lantern for linemen
Trouble man's portable search-lamp
Bucket for bailing pole holes
Blasting holes for wooden poles with dynamite
Numbering systems for pins and cross-arms
Cross-arms made of old pipe
Replacing insulators with 50,000-volt line "Hot"
Corner construction for 50,000-volt line
Combination brace and ground-wire bayonet
Methods of splicing wires and cables
High-tension crossing construction with protective loop
Simple method of transposing wires
Use of choke coils with pole arresters
Adaptation of three-phase arrester for two-phase use
Maintenance of electrolytic arrestersEmergency strain insulators made from glass insulators
Concrete poles integral with building to save space
Temporary cross-arm braces to aidconstruction crews
Operating results with a 2300-volt single-wire ground-return transmission line
Changing 35,000-volt insulators on live circuits
Concrete resistors for lightning arresters
Raising the height of old enclosed-arc lamp-posts at Cincinnati
Support of long transmission span by messenger cable.
CHAPTER III Meters page 56
A labor-saving meter truck
Tagging meter loops
Protection of electric meters
Two-meter off-peak rate
Use of single-phase wattmeter on poly- phase circuit
Ohmic and inductive resistances of meter-current circuits
Pendulum counting device for testing meters
Testing shunt-type watt-hour meters
Ammeter testing
Testing large watt-hour meters on fluctuating loads
A portable stand for graphic instruments
Watt-hour meter testing for central stations.
CHAPTER IV Operation op, and Changes in Circuits page 77
Operation of a two-phase distribution system
Determining the power-factor of a three-phase circuit
Polyphase feeder-regulator motors operated from single-phase feeder circuit
Interchangeable connections for feeder resistance
Rearrangement of three- wire system to reduce voltage fluctuations
Circuit with shifting neutral improved by installation of auto-transformer
Application of Tirill regulator to adjust balancer for neutral regulation at distant point
Arrangement of Tirrill regulator to compensate over adjustable range of terminal pressures
Voltmeter test boxes at distribution points.
CHAPTER V Switchboards and Power House Details page 89
Supporting cables in vertical runs
Casting bolts in concrete walls
A method for bending busbars
A switchboard wiring pit
Colored wire for switchboards and panels
Connection board for metering power
Connections for obtaining feeder voltage records
Alarm to indicate operation of remote rectifier set
Alarm circuit for double-throw oil switches
Remote control of circuits
Stop-watch record of service interruption
Field excitation test lamps
Circular synchronizing bank
Relay auxiliary contact for aluminum check cell
Balancer set used to bring up low battery cells
Disconnect switch for feeder regulators
Extra eye lugs for disconnect switches
Iron-pipe construction in distribution rack.
CHAPTER VI Signs, Display Lighting, Special Lighting Applications page 105
Remote-control switches for flat-rate signs
Interchangeable illuminated sidewalk sign
Running boards for a tungsten lighting installation
Illuminated church sign
Illuminated sign using flaming-arc lamps
A "kink" to save lamps on series-multiple circuits
Electric-lighted showcase for the plate-glass storeroom door
Lighting a Chicago store window
Special ceiling surfaces for indirect lighting
Danger of broken lamp near inflammable material
An electrical advertising novelty
Influencing the curio seeker's choice electrically.
CHAPTER VII Lamps and Lighting Circuits, Signal Bell Connections, etc. page 116
Lighting one lamp on four-lamp fixtures with three-wire system
Lamp protection
Rubber band prevents lamp from backing out
Lamp-cord adjusters
Holder for removing street-series receptacles
Cradle clamp for hanging arc lamps
Operation of series alternating-current street arc lamps
Overcoming overload on series arc-lamp circuits
Lamp operation due to accidental grounds
Locating faults on series lighting circuits
Lamp signals for hotel maids
Lamp signal system for a restaurant
Lamp signal system for hospital
Lighting fixtures in a bank
Control of house lamps from central switch
Mercury- vapor-incandescent lamp cabinet for photographic work
Automatic extension of connection bell
Economical street-lighting wiring arrangement
All-day supervision of arc circuits
Automatic control of curb lighting fed from Edison system
Remote-controlled operation of Peoria's ornamental lighting
Electric lighting from three-phase circuits
Low-frequency flicker cured by two-phase wiring
Testing lamps by a motor-driven machine
Wiring for extension lamp in 600-volt series circuit
Inexpensive lamp guard for interurban cars
Types and uses of semi-indirect lighting units.
CHAPTER VIII Transformers, Oil Switches and Circuit-breakers page 155
Testing transformers for insulation
Current-ratio and phase-angle test of series transformers
Bridged spark-gaps protect transformer coils
Protecting secondary networks against defective transformers
Inserting spare transformer in star-delta group
Operation of tub-transformer secondaries in series
Paralleling transformer banks on star-delta systems
The three-transformer method of changing from two to three phases
Low-freezing mixtures for oil switches
Disconnect coupling for oil-switch leads
Switch pull-rods in tension, not compression
Troubles due to non-use of circuit-breakers
Temporary repair to oil switch
Alarm connection for transformers
Two-phase to three-phase auto-transformers.
CHAPTER IX Interior Wiring page 174
Removing nails from trim in old-house wiring
Examining partition interiors
Grounding of bathroom fixtures, etc.
Support of cables for interior work
Explosion-proof connector plug
The right way to place protecting tubes
Right and wrong methods of connecting plug cut-outs
A method of carrying wires around bridges in old houses
The use of single-pole switches
One-piece versus two-piece push switches
An electric iron installation
Wiring buildings with cinder-filled floors.
Home-made chandelier hook and loops
Simplifying concealed conduit work
Conduit systems in concrete buildings
Mitering metal molding
Erection of metal molding
Wiring in metal molding
Wiring in cold-storage rooms
Conduit versus openwork in places subject to moisture, corrosive fumes, steam, etc.
Insulating and supporting fixtures
Connecting cords in sockets
Electric vacuum cleaner for fishing conduit
An improvised pendant switch.
CHAPTER X Motors, Motor Switches, Generators, Etc page 229
Motors housed in external sheet-iron
Installation of motors in dirty places
Installing motors under severe dust conditions
A home-made iron switch box
Design of wooden switch-boxes
Supporting motors on concrete building ceilings
Repairing a broken motor leg
Electric welding of broken motor shaft
Rebabbiting motor bearings
Care of electric motors
Troubles with induction motors
Starting torque of induction motors
Turning down a commutator
Adjusting interpole fields of generator
Wiring equipments for motor testing
Testing polarity of field coils
Testing magnet coils for short-circuits
Commutator testing device
Testing armatures with alternating current
Method of locating grounds in armatures
Remedying trouble caused by varying voltage
Conversion of 550-volt generator to Edison three-wire service
110-volt shunt motor on a 220- volt, three-wire circuit
A method of raising inverted motors
A safety panel for cranes
Methods of mounting motors on side walls and columns
Insulating and grounding motors and generators.
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| September 12, 2020 | Edited by MARC Bot | import existing book |
| August 13, 2020 | Edited by MARC Bot | remove fake subjects |
| December 27, 2011 | Edited by Terry Sheridan | Added contents |
| December 27, 2011 | Edited by Terry Sheridan | Edited without comment. |
| December 10, 2009 | Created by WorkBot | add works page |