CN217335060U - Rectifier pure water cooling device tripping protection circuit that stops operation - Google Patents
Rectifier pure water cooling device tripping protection circuit that stops operation Download PDFInfo
- Publication number
- CN217335060U CN217335060U CN202220706915.4U CN202220706915U CN217335060U CN 217335060 U CN217335060 U CN 217335060U CN 202220706915 U CN202220706915 U CN 202220706915U CN 217335060 U CN217335060 U CN 217335060U
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- pure water
- cooling device
- water cooling
- rectifier
- time relay
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Abstract
The utility model discloses a rectifier pure water cooling device tripping operation protection circuit that stops, including control power supply L end, the first power phase sequence protector normal close auxiliary contact of establishing ties according to the preface, the second way power phase sequence protector normal close auxiliary contact, time relay and the control power N end of establishing ties, time relay is last still to establish ties there is time relay auxiliary contact. The utility model discloses a first way power phase sequence protector normally closed contact and second way power phase sequence protection normally closed contact establish ties, realize the supervision to two way powers of pure water cooling device, if two way powers all lose the electricity, set the time delay through time relay, send rectifier tripping signal to solve the problem of pure water cooling device because of two way powers lose the unable tripping operation of electricity outage.
Description
Technical Field
The utility model relates to a rectification power supply system field, concretely relates to rectifier pure water cooling device tripping operation protection circuit that stops.
Background
When the high-power semiconductor rectifier works, the pure water cooling device is required to cool the rectifier element, and in order to protect the electric element of the rectifier, when the pure water cooling device is abnormally stopped, the rectifier must be tripped in a delayed mode. The traditional rectifier pure water cooling device is shut down and tripped to mainly detect the running state of a pure water pump, and because the pure water cooling device controls a power supply to be a UPS (uninterrupted power supply), when the pure water pump power supply disappears, the pure water pump contactor is still attracted, the pure water pump cannot be judged to be shut down, a protection blind area is formed, so that the rectifier electrical element is damaged due to overheating, and the safe running of the rectifier is seriously threatened.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a rectifier pure water cooling device outage tripping protection circuit to solve the problem of pure water cooling device because of two way powers lose the unable tripping operation of outage.
In order to achieve the above object, the utility model discloses a technical scheme be:
the shutdown trip protection circuit of the rectifier pure water cooling device comprises a control power supply L end, a first path of power supply phase sequence protector normally closed auxiliary contact, a second path of power supply phase sequence protector normally closed auxiliary contact, a time relay and a control power supply N end which are sequentially connected in series, wherein the time relay is also connected with the time relay auxiliary contact in series.
The utility model discloses compare in prior art's beneficial effect do:
the utility model discloses a first way power phase sequence protector normally closed contact and second way power phase sequence protection normally closed contact establish ties, realize the supervision to two way powers of pure water cooling device, if two way powers all lose the electricity, set the time delay through time relay, send rectifier tripping signal to solve the problem of pure water cooling device because of two way powers lose the unable tripping operation of electricity outage.
The utility model discloses a control power L end, the power phase sequence protector normal close auxiliary contact of the first way, second way power phase sequence protector normal close auxiliary contact, time relay and control power N end series connection form tripping operation protection circuit.
The first path of power supply phase sequence protector and the second path of power supply phase sequence protector in the utility model have the functions of automatic identification of voltage loss, undervoltage and phase sequence; the time relay can carry out delay time setting.
Drawings
Fig. 1 is a schematic structural view of the present invention;
the reference numerals have the following meanings: 1. controlling the L end of the power supply; 2. normally closed auxiliary contacts of the first path of power supply phase sequence protector; 3. the second power phase sequence protector normally closes the auxiliary contact; 4. a time relay; 5. controlling the N end of the power supply; 6. the time relay assists the contact.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
As shown in fig. 1, the shutdown trip protection circuit for the pure water cooling device of the rectifier comprises a control power supply L end 1, a first path of power supply phase sequence protector normally closed auxiliary contact 2, a second path of power supply phase sequence protector normally closed auxiliary contact 3, a time relay 4 and a control power supply N end 5 which are sequentially connected in series, wherein the time relay 4 is also connected with a time relay auxiliary contact 6 in series.
When the pure water cooling device normally operates, the first path of power supply and the second path of power supply of the pure water cooling device are normal, the normally closed auxiliary contact of the first path of power supply phase sequence protector KVS1 is opened, the normally closed auxiliary contact of the second path of power supply phase sequence protector KVS2 is opened, the KT coil of the time relay is not electrified, and a tripping signal of the rectifier is not sent out. If any power supply of the first power supply or the second power supply is normal, a normally closed auxiliary contact of a power supply phase sequence protector is always opened, a KT coil of the time relay cannot be electrified, and a tripping signal of the rectifier cannot be sent out.
When the first power supply and the second power supply of the pure water cooling device are both powered off, the normally closed auxiliary contact of the first power supply phase sequence protector KVS1 is closed, the normally closed auxiliary contact of the second power supply phase sequence protector KVS2 is closed, and the time relay KT coil is powered on. And setting and delaying by a time relay KT, and closing a normally open contact by the time relay KT to send a tripping signal of the rectifier. Therefore, the monitoring that the pure water cooling device is shut down due to the fact that two power supplies of the pure water cooling device lose power can be achieved, a tripping signal of the rectifier is sent out at the first time, and safety of rectifier equipment is protected.
Claims (1)
1. The utility model provides a rectifier pure water cooling device tripping operation protection circuit that stops which characterized in that: the circuit comprises a control power supply L end (1), a first path of power supply phase sequence protector normally closed auxiliary contact (2), a second path of power supply phase sequence protector normally closed auxiliary contact (3), a time relay (4) and a control power supply N end (5) which are sequentially connected in series, wherein the time relay (4) is also connected with a time relay auxiliary contact (6) in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220706915.4U CN217335060U (en) | 2022-03-30 | 2022-03-30 | Rectifier pure water cooling device tripping protection circuit that stops operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220706915.4U CN217335060U (en) | 2022-03-30 | 2022-03-30 | Rectifier pure water cooling device tripping protection circuit that stops operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217335060U true CN217335060U (en) | 2022-08-30 |
Family
ID=83003746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220706915.4U Active CN217335060U (en) | 2022-03-30 | 2022-03-30 | Rectifier pure water cooling device tripping protection circuit that stops operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217335060U (en) |
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2022
- 2022-03-30 CN CN202220706915.4U patent/CN217335060U/en active Active
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