CN212412837U - Emergency power supply system - Google Patents
Emergency power supply system Download PDFInfo
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- CN212412837U CN212412837U CN202021395955.9U CN202021395955U CN212412837U CN 212412837 U CN212412837 U CN 212412837U CN 202021395955 U CN202021395955 U CN 202021395955U CN 212412837 U CN212412837 U CN 212412837U
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- power supply
- rectifier
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Abstract
The utility model discloses an emergency power supply system, constitute emergency power supply through first storage battery, second storage battery, three groups of storage batteries of third storage battery, first rectifier and second rectifier constitute two tunnel solitary outputs, utilize first static switch and first automatic transfer switch to connect the first rectifier output of the first way, first static switch and first automatic transfer switch ensure under the condition that the main power can supply power, make first rectifier connect the electricity through the main power, ensure the power supply stable, utilize first static switch to first storage battery, utilize storage battery as interim emergency power supply, ensure the reliability of emergency power supply system power supply, second storage battery connects to first static switch and third static switch through first automatic transfer switch and second automatic transfer switch respectively, regard second storage battery as the reserve power supply of first storage battery and third storage battery, the emergency power supply time of the first storage battery pack and the third storage battery pack is prolonged, and the power supply safety and stability are improved.
Description
Technical Field
The utility model belongs to power supply system, concretely relates to emergent power supply system.
Background
And confirming upgrading and transforming part of important systems and equipment of the reactor aiming at the current situation of the reactor equipment and ensuring that the reactor can be continuously opened and has the capability of continuous operation. The normal operation and monitoring of the reactor need to be maintained while upgrading and rebuilding the construction process. That is, during the whole project execution process, some important instruments for monitoring the operation state of the reactor are connected in the emergency power supply system before modification, and the critical equipment for maintaining the safety state of the reactor must be continuously in the operation state. At present, the power supply equipment has old aging condition, and whether the electrical equipment can continue to stably operate or not. The principle of fully utilizing the equipment (old) is considered, the existing electrical equipment is checked, the important parts and the components are overhauled, the important components are directly replaced, and the electrical equipment can normally run for a long time.
At present, aiming at the emergency power supply of reactor equipment, a temporary power supply system is adopted and is combined with a reactor for use, the stability and the safety are low, the safe operation monitoring of the reactor cannot be ensured, and the safe operation problem in the upgrading and transforming process of the reactor is seriously influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an emergent power supply system to overcome prior art's not enough.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an emergency power supply system comprises a first storage battery pack, a second storage battery pack, a third storage battery pack, a first rectifier and a second rectifier, wherein the first rectifier is connected to the output end of the first storage battery pack and one output interface of a first automatic change-over switch through a first static switch; the second rectifier is connected to the output end of the third storage battery pack through a third static switch; the third static switch is connected to the transformer through the second automatic transfer switch, the input end of the third storage battery pack is connected to the main power supply through the transformer, and the output ends of the first rectifier and the second rectifier are provided with wiring terminals.
Furthermore, the second static switch is provided with a plurality of output interfaces.
Furthermore, the input ends of the first storage battery pack, the second storage battery pack and the third storage battery pack are connected through an automatic change-over switch.
Furthermore, the output end of the first static switch is connected with two rectifiers with different powers.
Furthermore, the output end of the third static switch is connected with two rectifiers with different powers.
Further, the first rectifier and the second rectifier are a DC110V rectifier or a DC48V rectifier.
Compared with the prior art, the utility model discloses following profitable technological effect has:
the utility model relates to an emergency power supply system, constitute emergency power supply through three groups of storage batteries of first storage battery group, second storage battery group, third storage battery group, first rectifier and second rectifier constitute two way output, utilize first static switch and first automatic change-over switch to connect the first rectifier output of the first way, first static switch and first automatic change-over switch ensure to make first rectifier connect the electricity through the main power under the circumstances that the main power can supply power, ensure the power supply to be stable, and when the main power trouble or can't be used, utilize first static switch to switch over to first storage battery group, utilize storage battery group as interim emergency power supply, second rectifier passes through third storage battery group as second way emergency power supply circuit, ensure the reliability of emergency power supply system power supply, second storage battery group passes through first automatic change-over switch and second automatic change-over switch respectively and connects in first static switch and third static switch, the second storage battery pack is used as a reserve power supply of the first storage battery pack and the third storage battery pack, so that the emergency power supply duration of the first storage battery pack and the third storage battery pack is prolonged, and the power supply safety and stability are improved.
Drawings
Fig. 1 is a schematic structural diagram in an embodiment of the present invention.
In the figure, 1, a first battery pack; 2. a second battery pack; 3. a third battery pack; 4. a first rectifier; 5. a second rectifier; 6. a first static switch; 7. a first automatic transfer switch; 8. a second static switch; 9. a third static switch; 10. a second automatic transfer switch.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings:
as shown in fig. 1, an emergency power supply system includes a first storage battery pack 1, a second storage battery pack 2, a third storage battery pack 3, a first rectifier 4 and a second rectifier 5, wherein the first rectifier 4 is connected to an output terminal of the first storage battery pack 1 and an output interface of a first automatic transfer switch 7 through a first static switch 6, an input terminal of the first storage battery pack 1 is connected to a main power supply through a transformer, an input terminal of the first automatic transfer switch 7 is connected to the main power supply through the transformer, an input terminal of the second storage battery pack 2 is connected to another output interface of the first automatic transfer switch 7, and an output terminal of the second storage battery pack 2 is connected to a second static switch 8; the second rectifier 5 is connected to the output end of the third storage battery 3 through a third static switch 9; the third static switch 9 is connected to the transformer through the second automatic change-over switch 10, the input end of the third storage battery pack 3 is connected to the main power supply through the transformer, the output ends of the first rectifier 4 and the second rectifier 5 are provided with wiring terminals for connecting emergency cables, the emergency power supply is composed of three groups of storage batteries of the first storage battery pack 1, the second storage battery pack 2 and the third storage battery pack 3, the first rectifier 4 and the second rectifier 5 are composed of two paths of output, the first static switch 6 and the first automatic change-over switch 7 are used for connecting the output of the first rectifier 4 of the first path, the first static switch 6 and the first automatic change-over switch 7 ensure that the first rectifier 4 is electrified through the main power supply under the condition that the main power supply can supply power, the power supply is stable, and when the main power supply is in fault or unavailable, the first static switch 6 is used for switching to the, utilize storage battery as interim emergent power supply, and in a similar way, second rectifier 5 passes through third storage battery 3 and is regarded as the emergent power supply circuit of second way, ensure the reliability of emergent power supply system power supply, second storage battery 2 connects in first static switch 6 and third static switch 9 through first automatic switch over 7 and second automatic switch over 10 respectively, regard second storage battery 2 as the reserve power of first storage battery 1 and third storage battery 3, it is long to improve first storage battery 1 and third storage battery 3 emergent power supply, improve power supply safety and stability, when the main power is normal, first rectifier 4 is connected to the main power through first static switch 6 and first automatic switch over 7.
The second static switch 8 is provided with a plurality of output interfaces and can be simultaneously connected with rectifiers of different types.
In the application, each battery pack is independently connected to a main power supply, the main power supply is a power grid, and the application is particularly connected to a 10KV power grid. The input ends of the first storage battery pack 1, the second storage battery pack 2 and the third storage battery pack 3 are connected through the automatic change-over switch, so that when different main power supplies break down or are trimmed, the input ends of the first storage battery pack 1, the second storage battery pack 2 and the third storage battery pack 3 are ensured to be switched to different main power supply grids, charging energy storage is realized, and safety and reliability of emergency use are ensured.
The output end of the first static switch 6 is connected with two rectifiers with different powers, and the output end of the third static switch 9 is connected with two rectifiers with different powers, so that current output with different powers can be realized, and the reliability and the application universality of the emergency power supply system are improved. Specifically, the present application employs a DC110V rectifier and a DC48V rectifier as the rectified output.
The emergency power supply system ensures that power is supplied to the safety system and other safety important equipment during the operation working condition and the accident working condition and after the accident working condition. The emergency power supply system can supply power to the safety important load within a specified time limit in anticipation of an operation event and during and after a design basis accident, and ensures that the safety function can be reliably executed. The emergency alternating current power supply system can obtain power from a normal power supply system and can also obtain power from a standby diesel generator set.
Claims (6)
1. An emergency power supply system is characterized by comprising a first storage battery pack (1), a second storage battery pack (2), a third storage battery pack (3), a first rectifier (4) and a second rectifier (5), wherein the first rectifier (4) is connected to the output end of the first storage battery pack (1) and an output interface of a first automatic transfer switch (7) through a first static switch (6), the input end of the first storage battery pack (1) is connected to a main power supply through a transformer, the input end of the first automatic transfer switch (7) is connected to the main power supply through the transformer, the input end of the second storage battery pack (2) is connected to the other output interface of the first automatic transfer switch (7), and the output end of the second storage battery pack (2) is connected with a second static switch (8); the second rectifier (5) is connected to the output end of the third storage battery pack (3) through a third static switch (9); the third static switch (9) is connected to the transformer through a second automatic change-over switch (10), the input end of the third storage battery pack (3) is connected to a main power supply through the transformer, and the output ends of the first rectifier (4) and the second rectifier (5) are provided with wiring terminals.
2. Emergency power supply system according to claim 1, characterised in that the second static switch (8) is provided with a plurality of output interfaces.
3. An emergency power supply system according to claim 1, characterized in that the inputs of the first battery pack (1), the second battery pack (2) and the third battery pack (3) are connected by an automatic transfer switch.
4. Emergency power supply system according to claim 1, characterised in that two rectifiers of different power are connected to the output of the first static switch (6).
5. Emergency power supply system according to claim 1, characterised in that two rectifiers of different power are connected to the output of the third static switch (9).
6. An emergency power supply system according to claim 1, wherein the first rectifier (4) and the second rectifier (5) are DC110V rectifiers or DC48V rectifiers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021395955.9U CN212412837U (en) | 2020-07-15 | 2020-07-15 | Emergency power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021395955.9U CN212412837U (en) | 2020-07-15 | 2020-07-15 | Emergency power supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212412837U true CN212412837U (en) | 2021-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021395955.9U Active CN212412837U (en) | 2020-07-15 | 2020-07-15 | Emergency power supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212412837U (en) |
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2020
- 2020-07-15 CN CN202021395955.9U patent/CN212412837U/en active Active
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