JPS5213620A - Method to test the field coronal of the power equipment - Google Patents

Method to test the field coronal of the power equipment

Info

Publication number
JPS5213620A
JPS5213620A JP8923075A JP8923075A JPS5213620A JP S5213620 A JPS5213620 A JP S5213620A JP 8923075 A JP8923075 A JP 8923075A JP 8923075 A JP8923075 A JP 8923075A JP S5213620 A JPS5213620 A JP S5213620A
Authority
JP
Japan
Prior art keywords
coronal
test
field
power equipment
discrimination
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.)
Pending
Application number
JP8923075A
Other languages
Japanese (ja)
Inventor
Shigeo Shiono
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP8923075A priority Critical patent/JPS5213620A/en
Publication of JPS5213620A publication Critical patent/JPS5213620A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: A connection circuit is provided to the ground line of the power equipments to enable the discrimination of the high sensitive internal corona signal.
COPYRIGHT: (C)1977,JPO&Japio
JP8923075A 1975-07-23 1975-07-23 Method to test the field coronal of the power equipment Pending JPS5213620A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8923075A JPS5213620A (en) 1975-07-23 1975-07-23 Method to test the field coronal of the power equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8923075A JPS5213620A (en) 1975-07-23 1975-07-23 Method to test the field coronal of the power equipment

Publications (1)

Publication Number Publication Date
JPS5213620A true JPS5213620A (en) 1977-02-02

Family

ID=13964934

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8923075A Pending JPS5213620A (en) 1975-07-23 1975-07-23 Method to test the field coronal of the power equipment

Country Status (1)

Country Link
JP (1) JPS5213620A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5466480A (en) * 1977-11-07 1979-05-29 Showa Electric Wire & Cable Co Method of measuring partial discharge of electric cable and its device
JPS6121984U (en) * 1984-07-16 1986-02-08 株式会社明電舎 Internal discharge detection device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5466480A (en) * 1977-11-07 1979-05-29 Showa Electric Wire & Cable Co Method of measuring partial discharge of electric cable and its device
JPS6121984U (en) * 1984-07-16 1986-02-08 株式会社明電舎 Internal discharge detection device

Similar Documents

Publication Publication Date Title
JPS5423447A (en) Strip line coupling circuit
JPS51126894A (en) Voltammetry apparatus
JPS5213620A (en) Method to test the field coronal of the power equipment
JPS5210514A (en) Transformation device
JPS537284A (en) Detection of motor temperature
JPS5376079A (en) Voltage detecting circuit
JPS5399784A (en) Integrated circuit device
JPS5239191A (en) Detecting method of water tree in cable
JPS5263054A (en) Pulse signal detecting circuit
JPS524743A (en) Detector circuit for magnetic bubble device
JPS522334A (en) Indicating equipment
JPS5220069A (en) Voltage signal circuit for tachometer
JPS5227373A (en) Cooling equipment of electrical parts
JPS5316842A (en) Leak protector associated with grounding lead for detecting power source polarity
JPS51147125A (en) Power signal monitor between two devices
JPS5373176A (en) Insulation resistance measuring apparatus
JPS5288746A (en) Ground short circuit detecting circuit
JPS51150958A (en) Signal generator
JPS51140402A (en) Method of fixing housing of electroic equipment
JPS5268941A (en) Anti time-limiting apparatus
JPS5266308A (en) Fault localizer
JPS537112A (en) Signal line allotter for external connection cable
JPS5376340A (en) Abnormal current detecting for electrical lines
JPS5368932A (en) Bias magnetic field generator for bubble device
JPS5261740A (en) Protection device for power system apparatus