JPH01136468U - - Google Patents
Info
- Publication number
- JPH01136468U JPH01136468U JP3198688U JP3198688U JPH01136468U JP H01136468 U JPH01136468 U JP H01136468U JP 3198688 U JP3198688 U JP 3198688U JP 3198688 U JP3198688 U JP 3198688U JP H01136468 U JPH01136468 U JP H01136468U
- Authority
- JP
- Japan
- Prior art keywords
- group
- parallel
- heaters
- current transformer
- circuit
- 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
- 238000001514 detection method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 1
Landscapes
- Patch Boards (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Control Of Resistance Heating (AREA)
Description
第１図及び第２図は本考案の実施例を示す回路
図で第３図と第４図は従来のスペースヒータ断線
検出回路図である。
１は電源、２はスペースヒータ、３は保護抵抗
、４はリレー、５はランプ、６は変流器、７は電
流センサ、８は配電盤である。
1 and 2 are circuit diagrams showing an embodiment of the present invention, and FIGS. 3 and 4 are conventional space heater disconnection detection circuit diagrams. 1 is a power source, 2 is a space heater, 3 is a protective resistor, 4 is a relay, 5 is a lamp, 6 is a current transformer, 7 is a current sensor, and 8 is a switchboard.
Claims (1)
において、前記複数台のスペースヒータを任意台
数毎にグループ分けして、各グループのヒータを
夫々各グループ毎に並列接続し、且つ各グループ
を更に並列接続しこの並列回路の一端に互に差動
接続した変流器を設け、この変流器の二次回路に
電流センサを設けたことを特徴とするスペースヒ
ータの断線検出回路。 In the device for detecting disconnection of multiple space heaters, the multiple space heaters are divided into groups according to an arbitrary number, and the heaters in each group are connected in parallel to each group, and each group is further connected in parallel. A disconnection detection circuit for a space heater, characterized in that a current transformer differentially connected to each other is provided at one end of the parallel circuit, and a current sensor is provided in a secondary circuit of the current transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3198688U JPH01136468U (en) | 1988-03-10 | 1988-03-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3198688U JPH01136468U (en) | 1988-03-10 | 1988-03-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01136468U true JPH01136468U (en) | 1989-09-19 |
Family
ID=31258256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3198688U Pending JPH01136468U (en) | 1988-03-10 | 1988-03-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01136468U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011158361A1 (en) * | 2010-06-17 | 2011-12-22 | 三菱電機株式会社 | Capacitive load device, and method for detecting abnormalities in capacitive load device |
-
1988
- 1988-03-10 JP JP3198688U patent/JPH01136468U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011158361A1 (en) * | 2010-06-17 | 2011-12-22 | 三菱電機株式会社 | Capacitive load device, and method for detecting abnormalities in capacitive load device |
| US8896316B2 (en) | 2010-06-17 | 2014-11-25 | Mitsubshi Electric Corporation | Device having capacitive loads and abnormality detecting method thereof |
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