AU5211473A - Improvements in electrical protective circuits - Google Patents
Improvements in electrical protective circuitsInfo
- Publication number
- AU5211473A AU5211473A AU52114/73A AU5211473A AU5211473A AU 5211473 A AU5211473 A AU 5211473A AU 52114/73 A AU52114/73 A AU 52114/73A AU 5211473 A AU5211473 A AU 5211473A AU 5211473 A AU5211473 A AU 5211473A
- Authority
- AU
- Australia
- Prior art keywords
- protective circuits
- electrical protective
- electrical
- circuits
- protective
- 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
- 230000001681 protective effect Effects 0.000 title 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L1/00—Devices along the route controlled by interaction with the vehicle or train
- B61L1/18—Railway track circuits
- B61L1/181—Details
- B61L1/187—Use of alternating current
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Escalators And Moving Walkways (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZAZA72/0969 | 1972-02-15 | ||
ZA720969A ZA72969B (en) | 1972-02-15 | 1972-02-15 | Improvements in electrical protective circuits |
ZAZA72/7329 | 1972-10-13 | ||
ZA727329 | 1972-10-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
AU5211473A true AU5211473A (en) | 1974-08-15 |
AU455440B2 AU455440B2 (en) | 1974-08-15 |
Family
ID=
Also Published As
Publication number | Publication date |
---|---|
DE2307475A1 (en) | 1973-08-23 |
CA973630A (en) | 1975-08-26 |
IT977355B (en) | 1974-09-10 |
GB1404878A (en) | 1975-09-10 |
FR2172312B3 (en) | 1976-02-13 |
FR2172312A1 (en) | 1973-09-28 |
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