DE413088C - Safety device for X-ray apparatus with one-sided earthed secondary coil of the transformer - Google Patents
Safety device for X-ray apparatus with one-sided earthed secondary coil of the transformerInfo
- Publication number
- DE413088C DE413088C DEO14570D DEO0014570D DE413088C DE 413088 C DE413088 C DE 413088C DE O14570 D DEO14570 D DE O14570D DE O0014570 D DEO0014570 D DE O0014570D DE 413088 C DE413088 C DE 413088C
- Authority
- DE
- Germany
- Prior art keywords
- safety device
- secondary coil
- transformer
- sided
- earthed
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05G—X-RAY TECHNIQUE
- H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
- H05G1/08—Electrical details
- H05G1/26—Measuring, controlling or protecting
- H05G1/54—Protecting or lifetime prediction
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Emergency Alarm Devices (AREA)
Description
Sicherheitseinrichtung für Röntgenapparate mit einseitig geerdeter Sekundärspule des Transformators. Die zur Durchleuchtung mittels Röntgenstrahlen gebräuchlichen Einrichtungen werden des öfteren mit einseitig geerdeter Sekundärspule des Hochspannungstransformators ausgeführt. Es werden dadurch die Dimensionen der Apparatur kleiner, und ihre Herstellung wird billiger. Bei Inbetriebnahme eines solchen Apparates muß eine besondere Leitung, die zur Erde führt, mit der Erdungsklemme des Apparates verbunden werden. Wird dies vergessen oder ist die Erdung nicht einwandfrei, so treten an dem zu erdenden Pol Spannungen auf, die auf das Gehäuse und die Schalter übergehen und das Bedienungspersonal gefährden können.Safety device for X-ray machines with one-sided earthed Transformer secondary coil. The ones for fluoroscopy using X-rays Common facilities are often with one-sided earthed secondary coil of the high-voltage transformer. Thereby the dimensions of the Apparatus is smaller and cheaper to manufacture. When commissioning a Such an apparatus must have a special line that leads to earth, with the earth terminal of the device. If this is forgotten or if the grounding is not correct, voltages occur at the pole to be earthed, which act on the housing and the switches override and endanger the operating personnel.
Die vorliegende Erfindung gibt einenWeg, diesen übelstand zu vermeiden. Sie besteht darin, daß der geerdete Pol der Sekundärspule und die Primärspule über eine Gasstrecke, z. B. eine Glimmlichtlampe, miteinander verbunden werden. Die Wirkungsweise ist am besten aus der Abbildung zu ersehen.The present invention provides a way to avoid this inconvenience. It consists in having the grounded pole of the secondary coil and the primary coil over a gas train, e.g. B. a glow lamp are connected to each other. The mode of action is best seen in the illustration.
i ist die Primärspule des Hochspannungstransformators, 2 seine Sekundärspule, deren eines Ende mit der Erdungsklemme3 verbunden ist. Diese steht über eine GlimmlichtlamPe4 in Verbinduni.init der Primärspule i. Die Glimmlichtlampe muß so bemessen sein, daß iW beiA#'j#ner Erdung der Klemme3 durch die am Anschlußpunkt der Primärspule auftretende $panndng nicht anspricht. Ist jedoch die Erdleitung unterbrochen, so gleicht sich die in 3 auftretende Spannung, nach der Primärwicklung hin, aus. Die Spannung des Punktes 3 ist dann um so geringer, je kleiner die Spannung zwischen den Lampenpolen ist. Insofern ist es zweckmäßig, die Zündspannung der Lampe möglichst niedrig zu wählen. Da andererseits aber die Gasstrecke nicht durch die Spannung der Primärspule ansprechen darf, wird sie zweckmäßig mit einem Punkte derselben verbunden, der eine geringe Spannung gegen Erde führt. Es wird normalerweise nahe der Mitte der Primärwicklung liegen.i is the primary coil of the high-voltage transformer, 2 is its secondary coil, one end of which is connected to the earth terminal 3. This is connected to the primary coil i via a glow light lamp 4. The glow lamp must be dimensioned in such a way that generally when terminal 3 is grounded, the voltage occurring at the connection point of the primary coil does not respond. If, however, the earth line is interrupted, the voltage occurring in FIG. 3 balances out towards the primary winding. The voltage of the point 3 is then the smaller the voltage between the lamp poles is even lower. In this respect, it is useful to choose the ignition voltage of the lamp as low as possible. On the other hand, however, since the gas line must not respond due to the voltage of the primary coil, it is expediently connected to a point of the same which carries a low voltage to earth. It will usually be near the center of the primary winding.
Die Glimmlichtlampe wird zweckmäßig offen angeordnet und dient gleichzeitig als Warnungssignal.The glow lamp is expediently arranged open and serves at the same time as a warning signal.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEO14570D DE413088C (en) | 1924-11-07 | 1924-11-07 | Safety device for X-ray apparatus with one-sided earthed secondary coil of the transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEO14570D DE413088C (en) | 1924-11-07 | 1924-11-07 | Safety device for X-ray apparatus with one-sided earthed secondary coil of the transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE413088C true DE413088C (en) | 1925-05-06 |
Family
ID=7353719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEO14570D Expired DE413088C (en) | 1924-11-07 | 1924-11-07 | Safety device for X-ray apparatus with one-sided earthed secondary coil of the transformer |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE413088C (en) |
-
1924
- 1924-11-07 DE DEO14570D patent/DE413088C/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE413088C (en) | Safety device for X-ray apparatus with one-sided earthed secondary coil of the transformer | |
| DE2637713A1 (en) | DEVICE FOR MEASURING THE INTENSITY OF ELECTRIC FIELDS | |
| DE485611C (en) | Ballistic measuring device, especially for measuring short-term currents in x-ray tubes | |
| AT84053B (en) | Electronic telemeter for determining changing liquid levels. | |
| DE165574C (en) | ||
| DE695552C (en) | Slope meter | |
| AT148934B (en) | Electric meter. | |
| DE575037C (en) | Device for monitoring the dielectric strength of the liquid insulating agent in transformers | |
| DE597312C (en) | Portable X-ray system in which the X-ray tubes or X-ray tube housing and transformer represent mechanically separate units during operation | |
| DE832450C (en) | Charger | |
| DE762230C (en) | Electrostatic shielding for tubular windings of electrical transformers or choke coils made up of disc coils and subject to traveling waves | |
| DE923376C (en) | High-voltage fault location measuring bridge | |
| DE876870C (en) | Device for testing electric fences and related facilities | |
| AT61457B (en) | Device for registering overvoltages. | |
| DE535164C (en) | Arrangement for measuring electrical alternating voltages | |
| AT107367B (en) | Device for monitoring the contact line voltage. | |
| DE497815C (en) | Device for power distribution systems to protect against contact voltages | |
| DE839821C (en) | Measuring and recording device for electrical voltages, in particular high voltages. | |
| DE421772C (en) | Bushing insulator with glow rings for high voltages | |
| DE454767C (en) | Device for testing the dielectric strength of insulating oils | |
| AT219691B (en) | Circuit arrangement for testing the insulation status of trolleybuses | |
| DE515623C (en) | Device for monitoring the insulation condition of the excitation winding of AC synchronous machines | |
| DE494234C (en) | High voltage transformer | |
| AT145149B (en) | Device for measuring the charge and discharge status of an electrical collector battery. | |
| AT114947B (en) | Electromedical apparatus. |