CN216119888U - Oil level monitoring and alarming instrument for vacuum oil injection of transformer - Google Patents
Oil level monitoring and alarming instrument for vacuum oil injection of transformer Download PDFInfo
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- CN216119888U CN216119888U CN202121275624.6U CN202121275624U CN216119888U CN 216119888 U CN216119888 U CN 216119888U CN 202121275624 U CN202121275624 U CN 202121275624U CN 216119888 U CN216119888 U CN 216119888U
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Abstract
The utility model relates to an oil level monitoring and alarming instrument for vacuum oiling of a transformer, which mainly comprises a temperature control sensor module, a remote control transmitting self-locking module, a remote control receiving module, an intermediate relay module and a trigger type voice alarming module; the temperature control sensor module is in contact connection with the remote control transmitting self-locking module to form a temperature sensing and alarm transmitting device; the remote control receiving module, the intermediate relay module and the triggering type voice alarm module are connected in parallel to form a signal receiving and voice alarm device. The signal receiving and voice alarming device receives the signal of the temperature sensing and alarming transmitting device and sends out an acousto-optic alarm signal. This oil level monitoring alarm can judge the oil level position when transformer vacuum oiling fast accurately through audible and visual alarm mode, has improved oiling efficiency, has practiced thrift the manpower, has eliminated the potential safety hazard.
Description
Technical Field
The utility model relates to a monitoring alarm device, in particular to a device for monitoring the oil level position of a transformer during vacuum oil injection.
Background
Vacuum oil injection of the transformer is an important process in the transformer installation process. The operation process of the transformer vacuum oil injection is as follows: the body of the oil immersed transformer is subjected to insulation drying treatment, the oil tank of the transformer is vacuumized, and finally qualified transformer oil which is treated is injected into the oil tank of the transformer from an oil injection port.
The transformer oil tank is a closed container, and when the transformer oil tank is filled with oil, an operator cannot know the real oil level height in the oil tank. During the oil filling process, the operator usually determines the height of the oil level by using an oil quantity estimation method. Because of receiving the influence of factors such as oiling pipe diameter and oil storage tank size, the error of so estimation is often great, leads to the oil level after the oiling or low or high: if the oil level is low, the transformer core cannot be submerged, so that the transformer core is affected with damp, and the insulation strength is reduced; if the oil level is high and the oil injection amount exceeds the upper edge of the transformer, the transformer oil can be sucked into the vacuum machine, so that the vacuum machine set is polluted and even damaged.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that the height of the oil level is difficult to control when a transformer is filled with oil, and provides an instrument which can quickly and accurately reflect the real-time position of the oil level of the transformer in the vacuum oil filling process and give an alarm for prompting.
The utility model is realized by the following steps:
the principle of the utility model is as follows: because the oil temperature (45-50 ℃) is generally higher than the ambient temperature when the transformer is filled with oil in vacuum, an oil level monitoring and alarming instrument is designed by adopting an acousto-optic alarming method through a heat conduction effect, so that the position of the oil level when the transformer is filled with oil in vacuum can be judged quickly and accurately, and an alarming signal is sent out.
The specific technical scheme of the oil level monitoring and alarming instrument for the vacuum oil injection of the transformer is as follows:
the monitoring and alarming instrument mainly comprises a temperature control sensor module A, a remote control transmitting self-locking module B, a remote control receiving module C, an intermediate relay module D and a triggering type voice alarming module E. The temperature control sensor module A and the remote control emission self-locking module B are in information transmission relation and are temperature sensing and alarm emission devices; remote control receiving module C, auxiliary relay module D and trigger type pronunciation alarm module E, parallel connection between the three, remote control receiving module C receives remote control transmission from locking module B's signal after, triggers auxiliary relay module D and starts, triggers type pronunciation alarm module E then, sends audible-visual alarm signal.
The temperature control sensor module A mainly comprises a temperature controller A1And a temperature sensing probe A2Composition of the temperature controller A1The microprocessor is provided for adjusting the temperature and has a setting function and an intelligent control function; temperature sensing probe A2There is a strong magnet. The working principle is that the temperature sensing probe A2Collecting temperature information, and transmitting the collected information to a temperature controller A1，Then the temperature controller A1And transmitting a signal to the remote control transmitting self-locking module B. The temperature measurement range of the temperature control sensor module A is-50 ℃ to +99 ℃.
The remote control transmitting self-locking module B is a signal transmitting device with a self-locking switch, and belongs to the prior art. The function of the remote control device is to collect the electric signal of the temperature control sensor A and then convert the electric signal into electric wave, namely, when the temperature signal received by the remote control device reaches a set value, the signal is transmitted to the remote control receiving module C. The module B has the characteristics of strong anti-interference capability and long transmission distance (the transmission distance can reach 100-200 meters).
The temperature control sensor module A and the remote control transmitting self-locking module B both adopt an alternating current 220V power supply capable of reliably supplying power because the temperature control sensor module A and the remote control transmitting self-locking module B need to continuously work for a long time (vacuum oil injection time: 4-5 hours of a 110kV transformer, 6-7 hours of a 220kV transformer and 8-9 hours of a 330kV transformer) in an outdoor complex environment.
The remote control receiving module C is a product of the prior art, and is a signal receiving device that converts a received electric wave signal into an electric signal and triggers the relay module D, that is, when receiving a signal sent by the transmitting device, the remote control receiving module C triggers the intermediate relay module D to operate.
And the intermediate relay module D starts an intermediate relay for negative electricity excitation. The contact signal is taken from the remote control receiving module C, and when the remote control receiving trigger device is started, the corresponding intermediate relay is synchronously started, so that the reliability is high. The function of the device is to control the start of the acousto-optic alarm module. After intermediate relay module D circular telegram, the electromagnetic force that produces in inside can let and move the iron core and laminate to the guide movable contact starts, lets the normally closed contact of relay can separate, and normally open contact can be closed. When the circuit of the intermediate relay module D is powered down, the internal spring will reset the moving contact.
The triggering type voice alarm module E is composed of an alarm voice generator E1And an alarm signal indicator lamp E2Are connected in parallel. When the intermediate relay module D is started, the corresponding alarm voice generator E1And an alarm signal indicator lamp E2And (5) a device which is switched on and emits sound and light alarm signals.
The monitoring and alarming instrument adopts the acousto-optic alarming technology, can quickly and accurately judge the position of the oil level when the transformer is filled with oil in vacuum, has simple structure and convenient operation, improves the oil filling efficiency, saves manpower and physical power, and avoids potential safety hazards caused by improper oil filling.
The utility model is further described with reference to the following drawings and detailed description.
Drawings
FIG. 1 is a schematic diagram of the structural principle between a temperature control sensor A and a remote control transmitting self-locking module B of the oil level monitoring and alarming instrument of the present embodiment;
fig. 2 is a schematic circuit diagram of a remote control receiving module C, an intermediate relay module D and a trigger type voice alarm module E of the oil level monitoring and alarm apparatus according to the present embodiment.
In the figure, A is a temperature control sensor module, A1Is a temperature controller, A2Is a temperature sensing probe, B is a remote control transmitting module, K is a self-locking switch, C is a remote control receiving module, J is a trigger switch, J1Is a linked switch of J, D is an intermediate relay, Z is a relay trigger switch, Z1、Z2Is a ganged switch, Z being closed1、Z2Closed at the same time, E is an alarm module, E1Is a voice warning device, E2Is a warning light instrument.
Detailed Description
Embodiment oil level monitoring and alarming instrument for vacuum oil injection of transformer
The oil level monitoring and alarming instrument for transformer vacuum oil injection in the embodiment mainly comprises a temperature control sensor module A, a remote control transmitting self-locking module B, a remote control receiving module C, an intermediate relay module D and a trigger type voice alarming module E.
Fig. 1 shows the principle of the circuit structure between the temperature control sensor module a and the remote control transmitting self-locking module B of the monitoring and alarming instrument of the embodiment.
A temperature control sensor module A composed of a temperature controller A1And a temperature sensing probe A2And (4) forming. Temperature controller module A1Respectively connected with the temperature sensing probe A2And the remote control transmitting module B is connected with a 220V power supply.
Fig. 2 shows the circuit principle among the remote control receiving module C, the intermediate relay module D and the triggering type voice alarm module E of the monitoring and alarm instrument of the present embodiment.
Self-locking switch K, multi-loop speech alarm E1Warning lamp E2The intermediate relay D and the remote control receiving module C are connected with a 12V power supply in parallel. The trigger type voice alarm module E alarms by multi-loop language E1And a warning lamp E2And (4) forming. J. Z, J1、Z1、Z2Respectively, an internal self-locking switch.
When the temperature sensing probe A2When the set temperature is sensed, the temperature is controlled by a temperature controller A1And sending the signal to a remote control transmitting self-locking module B, closing and keeping a self-locking switch K of the module B, starting a signal transmitting device of the self-locking switch, converting the electric signal into an electric wave signal by the signal transmitting device, and sending the electric wave signal to a remote control receiving module C.
When the self-locking switch K is pressed, the 12V power supply is switched on, and at the moment, the voice alarm device E1Warning lamp instrument E2Is in an operating state. And the remote control receiving module C converts the received electric wave signal into an electric signal and simultaneously triggers the switch J to close and keep.
Starting the intermediate relay module D, closing and keeping the switch Z when the intermediate relay module D is started, and simultaneously sending a signal instructionSending to a voice alarm module E, at the moment, a voice alarm device E1And an alarm lamp E2And simultaneously starts.
The operation steps in use are as follows:
1. the alternating current 220V power supply is switched on, and the temperature controller A1Setting the temperature (generally 45-50 ℃), and setting the temperature-sensing probe A2(the temperature sensing probe is provided with a powerful magnet) is adsorbed at the position required by the oil surface (generally, the transformer shell is positioned on the upper edge of the transformer shell at the position of 200 mm);
2. when the linkage switch K is closed, the remote control receiving and triggering device C enters a working state, and when the remote control receiving and triggering device C receives a signal of the remote control transmitting self-locking device B, the remote control receiving and triggering device C is started; when the remote control receiving trigger device C is started, the trigger type voice alarm device E is started, namely, an audible and visual alarm signal is sent out in time.
Claims (3)
1. The utility model provides an oil level monitoring, alarm instrument that transformer vacuum oiling was used which characterized in that: the remote control alarm system mainly comprises a temperature control sensor module A, a remote control transmitting self-locking module B, a remote control receiving module C, an intermediate relay module D and a trigger type voice alarm module E; information transmission is formed between the temperature control sensor module A and the remote control transmitting self-locking module B to form a temperature sensing and warning transmitting device; the information transmission is generated between the remote control transmitting self-locking module B and the remote control receiving module C; the remote control receiving module C, the intermediate relay module D and the triggering type voice alarm module E are connected in parallel to form a signal receiving and triggering type voice alarm device;
the temperature control sensor module A mainly comprises a temperature controller A1And a temperature sensing probe A2Are connected to form the product; the temperature controller A1A temperature sensing probe A with a microprocessor for temperature regulation2A strong magnet is arranged; temperature controller A1And a temperature sensing probe A2The remote control emission self-locking module B is electrically connected with a power supply respectively;
the remote control transmitting self-locking module B converts the electric signal acquired by the temperature control sensor module A into an electric wave and transmits the electric wave to the remote control receiving module C;
a remote control receiving module C which receives the electric wave signal from the remote control transmitting self-locking module B, converts the electric wave signal into an electric signal and triggers the electric signal to an intermediate relay module D;
the intermediate relay module D starts an intermediate relay for negative electricity excitation; the contact signal is taken from a remote control receiving module C;
a trigger type voice alarm module E, an alarm voice generator E1And an alarm signal indicator lamp E2Are connected in parallel; when the intermediate relay module D is started, the corresponding alarm voice generator E1And an alarm signal indicator lamp E2And (5) switching on, and emitting an audible and visual alarm signal.
2. The oil level monitoring and alarming instrument for vacuum oil injection of the transformer according to claim 1, wherein: the temperature control sensor module A and the remote control transmitting self-locking module B both adopt an alternating current 220V power supply.
3. The oil level monitoring and alarming instrument for vacuum oil injection of the transformer as claimed in claim 1, wherein the temperature control sensor module A has a temperature adjustment range of-50 ℃ to +99 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121275624.6U CN216119888U (en) | 2021-06-08 | 2021-06-08 | Oil level monitoring and alarming instrument for vacuum oil injection of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121275624.6U CN216119888U (en) | 2021-06-08 | 2021-06-08 | Oil level monitoring and alarming instrument for vacuum oil injection of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216119888U true CN216119888U (en) | 2022-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121275624.6U Active CN216119888U (en) | 2021-06-08 | 2021-06-08 | Oil level monitoring and alarming instrument for vacuum oil injection of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216119888U (en) |
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2021
- 2021-06-08 CN CN202121275624.6U patent/CN216119888U/en active Active
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