SU104185A1 - Instrument for measuring the insulation resistance of a two-wire direct-current network under voltage - Google Patents
Instrument for measuring the insulation resistance of a two-wire direct-current network under voltageInfo
- Publication number
- SU104185A1 SU104185A1 SU453196A SU453196A SU104185A1 SU 104185 A1 SU104185 A1 SU 104185A1 SU 453196 A SU453196 A SU 453196A SU 453196 A SU453196 A SU 453196A SU 104185 A1 SU104185 A1 SU 104185A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- switch
- insulation resistance
- meter
- network
- measuring
- Prior art date
Links
Landscapes
- Measurement Of Resistance Or Impedance (AREA)
Description
Изобретение относитс к приборам дл измерени сопротивлени изол ции двухпроводной сети посто нного тока, наход щейс под напр жением. Приборы подобного типа содержат измеритель посто нного тока и переключатель, посредством которого измеритель сначала включаетс между одним полюсом сети и землей, а затем - между другим полюсом и землей.This invention relates to instruments for measuring the insulation resistance of a two-wire direct-current network under voltage. Devices of this type contain a direct current meter and a switch by means of which the meter is first switched between one pole of the network and the ground, and then between the other pole and the ground.
В предложенном приборе дл непосредственного отсчета величины сопротивлени применен автоматический переключатель, поочередно соедин ющий измеритель то с одним полюсом, то с другим с частотой, обеспечивающей устойчивое отклонение указател измерител при протекании через него тока, среднее значение которого однозначно определ етс сопротивлением изол ции сети.In the proposed device for direct reading of the resistance value, an automatic switch is applied, alternately connecting the meter either to one pole or to another with a frequency that ensures stable deflection of the meter pointer when current flows through it, the average value of which is uniquely determined by the network insulation resistance.
На чертеже показана схема включени предлол еиного прибора.The drawing shows the wiring diagram of the predol device.
Здесь: /- двухпроводна измер ема сеть посто нного тока; 2- автоматический переключатель; 5- измеритель; добавочные сопротивлени прибора; , R -Here: / is a two-wire measured DC network; 2- automatic switch; 5- meter; additional resistances of the device; , R -
сопротивлени изол ции проводов относительно земли.earth wiring insulation resistance.
Отсчет величины сопротивлени изол ции ведетс по шкале измерител 3, отградуированной в мегомах (подобно омметру с последовательной схемой соединени дл заданного напр жени сети).The insulation resistance value is measured on a scale of meter 3, calibrated in megohms (like an ohmmeter with a series connection for a given mains voltage).
В качестве автоматического переключател можно использовать электромагнитпый вибратор, обмотка возбуждени которого подключаетс к измер емой сети.As an automatic switch, you can use an electromagnet vibrator, the excitation winding of which is connected to the measured network.
В отдельных случа х вместо автоматического переключател быть применен приводимый от руки вращающийс коммутатор.In some cases, instead of an automatic switch, a hand-driven rotary switch will be used.
Предмет изобретени Subject invention
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU453196A SU104185A1 (en) | 1955-11-15 | 1955-11-15 | Instrument for measuring the insulation resistance of a two-wire direct-current network under voltage |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU453196A SU104185A1 (en) | 1955-11-15 | 1955-11-15 | Instrument for measuring the insulation resistance of a two-wire direct-current network under voltage |
Publications (1)
Publication Number | Publication Date |
---|---|
SU104185A1 true SU104185A1 (en) | 1955-11-30 |
Family
ID=48377723
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU453196A SU104185A1 (en) | 1955-11-15 | 1955-11-15 | Instrument for measuring the insulation resistance of a two-wire direct-current network under voltage |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU104185A1 (en) |
-
1955
- 1955-11-15 SU SU453196A patent/SU104185A1/en active
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