JPS5966342U - Transformer differential protection device - Google Patents
Transformer differential protection deviceInfo
- Publication number
- JPS5966342U JPS5966342U JP16164182U JP16164182U JPS5966342U JP S5966342 U JPS5966342 U JP S5966342U JP 16164182 U JP16164182 U JP 16164182U JP 16164182 U JP16164182 U JP 16164182U JP S5966342 U JPS5966342 U JP S5966342U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- protection device
- differential
- transformer
- differential protection
- 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
Links
Landscapes
- Protection Of Transformers (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
、 第１図は従来の変圧器における差動保護装置の基
本回路図、第２図は本考案に係る変圧器の差動保護装置
の一実施例を示す回路図である。
１０．１２．１４・・・・・・ＡＮＤ回路、１６．１８
・・・・・・ＯＲ回路、２０，２２．２４・・・・・・
ＡＮＤ回路、２６・・・・・・不足電圧リレー、２８・
・・・・・ＮＯＲ回路、３０・・・・・・タイマ、３２
，３４．３６・・・・・・ＯＲ回路、１−ｒ、 ｌ
−ｓ、 ｌ−、ｔ・・・・・・突入電流判定要素、２
−ｒ、 ２−３． ２−ｔ−−−−−−差電流要素、
３−ｒ、 ３−ｓ。
３−ｔ・・・・・・高整定発振要素。1 is a basic circuit diagram of a conventional differential protection device for a transformer, and FIG. 2 is a circuit diagram showing an embodiment of the differential protection device for a transformer according to the present invention. 10.12.14...AND circuit, 16.18
...OR circuit, 20, 22.24...
AND circuit, 26...Undervoltage relay, 28.
...NOR circuit, 30...Timer, 32
, 34.36...OR circuit, 1-r, l
-s, l-, t...Inrush current determination element, 2
-r, 2-3. 2-t------ difference current element,
3-r, 3-s. 3-t...High settling oscillation element.
Claims (2)
定する突入電流判定要素と差電流要素とのＡＮＤ条件下
に遮断器のトリップ指令信号を得るよう構成した変圧器
の差動保護装置において、２相の突入電流判定要素を入
力するＡＮＤ回路と、これらＡＮＤ回路の出力と変圧器
の励磁後における電圧を検出する不足電圧リレーの動作
に基つく出力とを入力するＯＲ回路と、これらＯＲ回路
の出力と差電流要素とを入力するＡＮＤ回路とを備える
ことを特徴とする変圧器の差動保護装置。(1) A transformer differential configured to obtain a circuit breaker trip command signal under an AND condition of an inrush current determination element that determines whether the inrush current includes a second harmonic component and a differential current element. The protection device includes an AND circuit that inputs the two-phase inrush current determination element, and an OR circuit that inputs the output of these AND circuits and an output based on the operation of an undervoltage relay that detects the voltage after excitation of the transformer. , and an AND circuit inputting the outputs of these OR circuits and a differential current element.
置において、不足電圧リレーの動作出力はＮＯＲ回路を
介して取り出し、さらにこのＮＯＲ回路の動作出力によ
って作動するタイマを介してＯＲ回路の各一方の入力端
に入力してなる変圧器の差動保護装置。(2) Utility model registration In the differential protection device according to claim 1, the operating output of the undervoltage relay is taken out via a NOR circuit, and further passed through an OR circuit via a timer activated by the operating output of this NOR circuit. A differential protection device for a transformer consisting of input to one input terminal of each.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16164182U JPS5966342U (en) | 1982-10-27 | 1982-10-27 | Transformer differential protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16164182U JPS5966342U (en) | 1982-10-27 | 1982-10-27 | Transformer differential protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5966342U true JPS5966342U (en) | 1984-05-04 |
Family
ID=30355180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16164182U Pending JPS5966342U (en) | 1982-10-27 | 1982-10-27 | Transformer differential protection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5966342U (en) |
-
1982
- 1982-10-27 JP JP16164182U patent/JPS5966342U/en active Pending
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