GB1377833A - Systems for testing insulating or dielectric material - Google Patents

Systems for testing insulating or dielectric material

Info

Publication number
GB1377833A
GB1377833A GB2349372A GB2349372A GB1377833A GB 1377833 A GB1377833 A GB 1377833A GB 2349372 A GB2349372 A GB 2349372A GB 2349372 A GB2349372 A GB 2349372A GB 1377833 A GB1377833 A GB 1377833A
Authority
GB
United Kingdom
Prior art keywords
voltage
specimen
ramp
testing
systems
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2349372A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robinson Partners Ltd F C
Original Assignee
Robinson Partners Ltd F C
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robinson Partners Ltd F C filed Critical Robinson Partners Ltd F C
Priority to GB2349372A priority Critical patent/GB1377833A/en
Publication of GB1377833A publication Critical patent/GB1377833A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Relating To Insulation (AREA)

Abstract

1377833 Testing insulators or dielectrics F C ROBINSON & PARTNERS Ltd 22 Nov 1971 [21 Aug 1970] Divided out of 1377474 Heading G1U A system for testing a specimen of an electrical insulating material or a dielectric, is characterized in that a D.C. ramp voltage Fig. 3 (not shown), is applied to the specimen, this being obtained by rectifying a ramp modulated sine wave Fig. 2. The system is preferably combined with a recording arrangement as described in the parent Specification1377474 in which the value of the D.C. voltage is recorded at that instant when a discharge occurs within the specimen. An h.f. oscillator (111), Fig. 1 (not shown), is modulated by a ramp generator (114) and feeds a transformer (116), the secondary of which is connected to a voltage multiplier (117) providing the desired D.C. output. The ramp generator may provide a triangular wave in which case the extinction voltage may be recorded.
GB2349372A 1971-11-22 1971-11-22 Systems for testing insulating or dielectric material Expired GB1377833A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2349372A GB1377833A (en) 1971-11-22 1971-11-22 Systems for testing insulating or dielectric material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2349372A GB1377833A (en) 1971-11-22 1971-11-22 Systems for testing insulating or dielectric material

Publications (1)

Publication Number Publication Date
GB1377833A true GB1377833A (en) 1974-12-18

Family

ID=10196515

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2349372A Expired GB1377833A (en) 1971-11-22 1971-11-22 Systems for testing insulating or dielectric material

Country Status (1)

Country Link
GB (1) GB1377833A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2029587A (en) * 1978-08-11 1980-03-19 Tokyo Shibaura Electric Co Testing insulation
GB2187290A (en) * 1986-01-31 1987-09-03 Perchem Ltd Determining breakdown of liquid samples

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2029587A (en) * 1978-08-11 1980-03-19 Tokyo Shibaura Electric Co Testing insulation
GB2029587B (en) * 1978-08-11 1982-09-02 Tokyo Shibaura Electric Co Methods and apparatus for diagnosing faults in the insulation of electrical insulator
GB2187290A (en) * 1986-01-31 1987-09-03 Perchem Ltd Determining breakdown of liquid samples
GB2187290B (en) * 1986-01-31 1990-02-07 Perchem Ltd Apparatus and method for testing liquid samples

Similar Documents

Publication Publication Date Title
ES8102407A1 (en) Electrical inductive apparatus
CA961904A (en) High voltage oil insulated and cooled armature windings
GB1192133A (en) Bonding Electrically Conductive Metals to Insulators
GB1377833A (en) Systems for testing insulating or dielectric material
GB1251356A (en)
ES356380A2 (en) High-voltage electrical cables
JPS5217697A (en) Dielectic porcelain composite to the high frequency purpose
GB882815A (en) Electrical capacitor
GB1463471A (en) Arrangement for preventing glow discharges
GB828233A (en) Improvements in or relating to electrically conductive non-metallic materials
JPS56168203A (en) Analog output device
GB1316208A (en) Electrical ignition device
JPS52125785A (en) Air tight insulation support device of high voltage conductor
GB735450A (en) Electrical condenser
CA876354A (en) Cable and cable system for the transmission of high voltage electrical energy
JPS5217698A (en) Dielectric porcelain composite to the high frequency purpose
GB992440A (en) Improvements in and relating to electrical heating apparatus
AU266437B2 (en) Improving the corna starting voltage of electrical devices having alternating dielectric and conductor lavers
GB920844A (en) Improvements in insulators of the cap and pin type
GB1383570A (en) High-voltage circuit breaker
JPS53126179A (en) Air-tight insulated terminal
JPS523180A (en) Oil immersed power cables
JPS52149961A (en) High-tension insulating unit of charged particle gun
AU3642663A (en) Improving the corna starting voltage of electrical devices having alternating dielectric and conductor lavers
JPS51140104A (en) Winding of three-phase electric machinery

Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee