JPH0325908A - Transformer with built-in alarm circuit - Google Patents

Transformer with built-in alarm circuit

Info

Publication number
JPH0325908A
JPH0325908A JP1159592A JP15959289A JPH0325908A JP H0325908 A JPH0325908 A JP H0325908A JP 1159592 A JP1159592 A JP 1159592A JP 15959289 A JP15959289 A JP 15959289A JP H0325908 A JPH0325908 A JP H0325908A
Authority
JP
Japan
Prior art keywords
transformer
resistance
coil
ammeter
electromotive force
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
JP1159592A
Other languages
Japanese (ja)
Inventor
Takuji Kataoka
片岡　卓司
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.)
UNIVERSAL DATA KK
Original Assignee
UNIVERSAL DATA KK
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 UNIVERSAL DATA KK filed Critical UNIVERSAL DATA KK
Priority to JP1159592A priority Critical patent/JPH0325908A/en
Publication of JPH0325908A publication Critical patent/JPH0325908A/en
Pending legal-status Critical Current

Links

Landscapes

  • Emergency Alarm Devices (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Protection Of Transformers (AREA)

Abstract

PURPOSE:To make it possible even for a layman on electricity to discover the abnormality of a transformer by operating an alarm device and to improve safety by winding a resistance coil, a resistance value of which alters due to a temperature change by operation, on a general-purpose transformer circuit only by required number. CONSTITUTION:A resistance coil 4, a resistance value of which varies due to a temperature change by operation, is wound on a general-purpose transformer circuit composed of a primary coil 1 and a secondary coil 2 and a core 3 only by required number. The resistance coil 4 has electromotive force, but electromotive force is lowered when the load currents of the secondary coil 2 are increased and the magnetic flux of the core 3 is saturated, and an ammeter 6 cannot be swung sufficiently through a resistor 5 for adjusting currents. When the temperature of a transformer is elevated by the change of peripheral environment even at the time of enough electromotive force, the resistance of the resistance coil is augmented, and the ammeter 6 cannot be swung sufficiently. The alarm actuating contact 7 of the ammeter 6 is operated even in either case, and the transformer is protected from the saturation of magnetic flux, a temperature rise, etc., by an alarm device, a signal, etc.

Description

【発明の詳細な説明】 この発明はトランスの保：ｌ機構に関する．従来のトラ
ンスには温度計や除冫立剤エレメントの組み込まれたも
のがあったが，異常を検知して警報を発するものはなく
、受電設備等において、多くのトランスを有するところ
では保守管理における問題があった．この発明はトラン
スの保守管理において、電気技術者でなくてもトランス
の異常発見が可能となり、安全性を従来よりも高めるこ
とを目的とする． この発明の実施例を図面にちとづいて説明すれば次のと
おりである．本図は一次コイル２と二次コイル２，鉄心
３から構成される一般的トランス回路に、稼動による温
度の変化によって抵抗値の変わる抵抗コイル４を必要回
数巻き付けたちのである．抵抗コイル４は起電力を有す
るが二次コイル２の負荷電流が増大し、鉄心３の磁束が
飽和すると、起電力が低下し、電流調節用抵抗５を通し
電流計６を充分に振らせることが出来なくなる．また、
起電力が充分であっても周囲因境の変化でトランスの温
度が上昇すると、抵抗コイルの抵抗が増大し、電流計６
を充分に振らせることが出来なくなる．そのいずれの晴
にも電流計６のＶ報接八７が作動し、警報装置や信号等
によってトランスを磁束の飽和と温度の上昇等から保護
するものである．４．図面の簡単な説明 図はこの発明の実施例を示すもので トランスの回路図である． １　．　一　　次　　コ　　イ　　ル ３．鉄心 ５．電流調節用抵抗 ？．Ｖ　　　報　　接　　点 ２．二次コイル ４．抵抗コイル ６．電　　流　　計DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a transformer protection mechanism. Conventional transformers have some built-in thermometers and evaporative elements, but there is nothing that detects abnormalities and issues alarms, and in places with many transformers such as power receiving equipment, it is difficult to maintain and manage them. There was a problem. The purpose of this invention is to make it possible to detect abnormalities in transformers even if you are not an electrician in the maintenance and management of transformers, thereby increasing safety compared to the past. An embodiment of this invention will be described below with reference to the drawings. This diagram shows a general transformer circuit consisting of a primary coil 2, a secondary coil 2, and an iron core 3, in which a resistance coil 4 whose resistance value changes depending on temperature changes due to operation is wound around the required number of times. The resistance coil 4 has an electromotive force, but when the load current of the secondary coil 2 increases and the magnetic flux of the iron core 3 becomes saturated, the electromotive force decreases and the current adjustment resistor 5 is passed through to cause the ammeter 6 to swing sufficiently. becomes impossible. Also,
Even if the electromotive force is sufficient, if the temperature of the transformer rises due to changes in the surrounding environment, the resistance of the resistance coil increases, and the ammeter 6
It will not be possible to shake it sufficiently. In either case, the V relay 87 of the ammeter 6 is activated, and the transformer is protected from magnetic flux saturation and temperature rise by an alarm device, signal, etc. 4. A simple explanatory diagram of the drawing shows an embodiment of the present invention and is a circuit diagram of a transformer. 1. Primary coil 3. Iron core5. Resistor for current adjustment? ．． V-report contact point 2. Secondary coil 4. Resistance coil6. ammeter

Claims (1)

【特許請求の範囲】[Claims] 　警報回路もしくは警報器を有するトランス。A transformer with an alarm circuit or alarm device.
JP1159592A 1989-06-23 1989-06-23 Transformer with built-in alarm circuit Pending JPH0325908A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1159592A JPH0325908A (en) 1989-06-23 1989-06-23 Transformer with built-in alarm circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1159592A JPH0325908A (en) 1989-06-23 1989-06-23 Transformer with built-in alarm circuit

Publications (1)

Publication Number Publication Date
JPH0325908A true JPH0325908A (en) 1991-02-04

Family

ID=15697074

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1159592A Pending JPH0325908A (en) 1989-06-23 1989-06-23 Transformer with built-in alarm circuit

Country Status (1)

Country Link
JP (1) JPH0325908A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5760971A (en) * 1995-11-28 1998-06-02 Nikon Corporation Zoom lens system
JP2003010137A (en) * 2001-06-29 2003-01-14 Terumo Corp Rectum probe and temperature measuring device and thermotherapeutic instrument using the probe
US20190369154A1 (en) * 2015-10-30 2019-12-05 Landis+Gyr Llc Method for detecting a meter maintenance condition using winding resistance

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5760971A (en) * 1995-11-28 1998-06-02 Nikon Corporation Zoom lens system
JP2003010137A (en) * 2001-06-29 2003-01-14 Terumo Corp Rectum probe and temperature measuring device and thermotherapeutic instrument using the probe
JP4694725B2 (en) * 2001-06-29 2011-06-08 テルモ株式会社 Rectal probe, temperature measuring device using the same, and heat treatment device
US20190369154A1 (en) * 2015-10-30 2019-12-05 Landis+Gyr Llc Method for detecting a meter maintenance condition using winding resistance
US10955491B2 (en) * 2015-10-30 2021-03-23 Landis+Gyr, Inc. Method for detecting a meter maintenance condition using winding resistance

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