GB630230A - Improvements relating to the measurement of the temperature of electric cables - Google Patents
Improvements relating to the measurement of the temperature of electric cablesInfo
- Publication number
- GB630230A GB630230A GB1816547A GB1816547A GB630230A GB 630230 A GB630230 A GB 630230A GB 1816547 A GB1816547 A GB 1816547A GB 1816547 A GB1816547 A GB 1816547A GB 630230 A GB630230 A GB 630230A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cable
- temperature
- sample
- filler
- measurement
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/10—Thermometers specially adapted for specific purposes for measuring temperature within piled or stacked materials
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
630,230. Electric heating; thermal image. BRITISH INSULATED CALLENDER'S CABLES, Ltd., and WADDICOR, H. July 9, 1947, No. 18165. [Class 39(iii)] [Also in Group XXXVIII] To measure the conductor temperature in a multicore cable under working conditions, the temperature of the filler at the centre of the cable is measured by a pair of wires embedded therein, and the small temperature difference between the filler and the conductors is measured in a sample length of similarly loaded cable, and added to the first measurement. The copper wires 5 embedded in the cable 1 form a resistance thermometer connected in one arm of a bridge circuit, with compensating leads 9 in the other arm, so that the out-of-balance voltage developed in the coil 11 of the indicator depends on the temperature of the filler. Some of the strands of the cores of the sample cable 13 are replaced by high resistance wire and connected in series to a current transformed 18 round one of the cores of the main cable so that the sample is loaded to the same watts/foot as the main cable. Two thermocouples 20, 21 placed respectively at the centre of the sample, and on the surface of one of the conductors are connected in series opposition to the second coil 19 of the indicator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1816547A GB630230A (en) | 1947-07-09 | 1947-07-09 | Improvements relating to the measurement of the temperature of electric cables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1816547A GB630230A (en) | 1947-07-09 | 1947-07-09 | Improvements relating to the measurement of the temperature of electric cables |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB630230A true GB630230A (en) | 1949-10-07 |
Family
ID=10107772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1816547A Expired GB630230A (en) | 1947-07-09 | 1947-07-09 | Improvements relating to the measurement of the temperature of electric cables |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB630230A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2798377A (en) * | 1952-08-08 | 1957-07-09 | Allan L Brownlee | Apparatus for providing temperature indications of inaccessible objects |
| US3289478A (en) * | 1964-03-02 | 1966-12-06 | Showa Electric Wire & Cable Co | Supervisory system for temperatures of electric cables |
| CN107525607A (en) * | 2017-10-20 | 2017-12-29 | 浙江华普电缆有限公司 | Cable temperature monitoring device |
-
1947
- 1947-07-09 GB GB1816547A patent/GB630230A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2798377A (en) * | 1952-08-08 | 1957-07-09 | Allan L Brownlee | Apparatus for providing temperature indications of inaccessible objects |
| US3289478A (en) * | 1964-03-02 | 1966-12-06 | Showa Electric Wire & Cable Co | Supervisory system for temperatures of electric cables |
| CN107525607A (en) * | 2017-10-20 | 2017-12-29 | 浙江华普电缆有限公司 | Cable temperature monitoring device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB630230A (en) | Improvements relating to the measurement of the temperature of electric cables | |
| US2635135A (en) | Apparatus for testing multiconductor cables | |
| GB1252754A (en) | ||
| GB747288A (en) | Improvements in or relating to electric cables | |
| GB1280732A (en) | Thermal monitoring of power cables | |
| GB627403A (en) | Improvements in or relating to electric heating cables | |
| FR2279095A1 (en) | Heat transfer coefficient measuring procedure - uses electrical traces, measure of power dissipated | |
| SU370551A1 (en) | DEVICE FOR MEASURING THE INSULATION RESISTANCE | |
| SU901844A1 (en) | Device for measuring temperature | |
| SU65791A1 (en) | Device for determining the location of damage to insulation of leaded cables | |
| SU122206A1 (en) | Method for measuring electrical power | |
| SU94883A1 (en) | Compensation device for measuring the resistance of grounding of power line poles with a ground cable | |
| SU928253A1 (en) | Device for measuring electric circuit insulation resistance | |
| GB320193A (en) | Improvements relating to the measurement of the temperature of electric cables | |
| GB646392A (en) | Improvements in electric measuring apparatus short or open circuits in wires, cables, or other sets of conductors | |
| SU62259A1 (en) | Power factor measurement method | |
| SU769360A1 (en) | Compensation wire | |
| SU449307A1 (en) | Method of compensation of induced noise when testing cables | |
| SU917127A1 (en) | Method of determination of insulation parameters of three-phase electric circuits with isolated neutral voltage above 1000 v | |
| SU728097A1 (en) | Method of locating cable line wires insulation flaws | |
| GB197001A (en) | Improvements relating to electricity supply systems | |
| SU1368825A1 (en) | Device for detecting cable insulation damage place | |
| GB520976A (en) | Improvements in or relating to thermo-converters for measuring high frequency electric currents | |
| SU43162A1 (en) | Instrument for measuring small linear quantities | |
| GB368231A (en) | Improvements in or relating to electric cables |