CN2093455U - Full-automatic cadmium-nickel accumulator d.c. power supply complete set equipment - Google Patents
Full-automatic cadmium-nickel accumulator d.c. power supply complete set equipment Download PDFInfo
- Publication number
- CN2093455U CN2093455U CN 90223725 CN90223725U CN2093455U CN 2093455 U CN2093455 U CN 2093455U CN 90223725 CN90223725 CN 90223725 CN 90223725 U CN90223725 U CN 90223725U CN 2093455 U CN2093455 U CN 2093455U
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- Prior art keywords
- power supply
- equipment
- voltage
- floating
- current
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Abstract
The utility model relates to a D. C. power supply or an uninterruptible power supply for the electric station and large-scale industrial and mining establishments, i.e. cadmium-nickel accumulator D. C. power supply complete set equipment. The cadmium-nickel accumulator D. C. power supply complete set equipment comprises a main charge circuit, a floating charge circuit, flashing equipment, insulation monitoring equipment, electric voltage monitoring equipment and main floating charge current indicator equipment. The utility model has the advantages of stable voltage, high precision of stable current, small noises, small ripple coefficient of main control electric voltage, no interval time of inputting the backup power, etc., and the main charge circuit and the floating charge circuit can be exchanged mutually, making the operation of the cadmium-nickel accumulator D. C. power supply complete set equipment more reliable.
Description
The utility model relates to a kind of transformer station that is used in, power plant, the DC power supply of large industrial enterprise or uninterrupted power supply.
With nickel cadmium cell DC power supply the complete sets of equipment; also claim the nickel cadmium cell direct current cabinet; generally dare to the following transformer station of 220KV; power plant and large industrial enterprise; use as the uninterrupted power supply under DC power supply or the accident; can satisfy relaying protection under the accident condition, automatics telemechanical apparatus, emergency lighting.The requirement of communication and various electromagnetic operating mechanism divide-shut brakes.
At present, the DC power supply the complete sets of equipment of domestic production, the magnetic saturation voltage stabilization and current stabilization mode that all adopts traditional designed lines master's floating charge circuit to adopt, volume is big, heavyly and common has a voltage stabilizing, and precision of steady current is low, noise is big, temperature rise, the big shortcoming of controlling voltage ripple coefficient, break down in the main channel, alternate channel drops into blanking time long (0.4 second), cause the control bussed supply to have a longer rest periods to be prone to fault, the whole manual operations of its mode of operation, workload is big.
It is full-automatic cadmium nickel DC power supply integrated system that the purpose of this utility model is to provide a kind of new DC power supply integrated system, its voltage stabilizing (≤1%) current stabilization (≤2%) precision height, Wen Bo Department number little (1.5%), and control bussed supply free of discontinuities.
The utlity model has flasher, insulation monitoring and warning device, voltage monitor, these three devices are used to monitor and indicate voltage and the insulation situation of control bus KM+, KM-.Master of the present utility model, floating charge circuit all adopt controllable silicon three-phase bridge road to constitute, voltage, current double closed-loop control, constant voltage output.Female electric wire is directly controlled on main charging road.Main in the past, floating current indication designs unreasonable, main, floating current conversion indication, and inaccuracy, and the utility model adopts new master, floating current testing circuit, and it can directly and not need conversion to show the floating electric current of master.
Accompanying drawing is an electrical schematic diagram of the present utility model, in conjunction with the accompanying drawings utility model is further described.
In the drawings, F
1F
2Shortcomings such as be main float charger, they adopt the controlled osmanthus of three-phase bridge rectification circuit, and voltage, current double closed-loop are controlled, and voltage, electric current output are stablized, and the noise that overcomes ferromagnetic saturated voltage stabilizing, flow straightener is big, and Bo Wen Department number is big, F
1, F
2Because structure is identical, breaks down at one, another can be as its stand-by power supply to keep functional reliability of the present utility model.B
1, B
2, B
3Be respectively flasher, insulation monitoring and warning device voltage monitor, these three devices increase the utility model functional reliability, and the DC power supply the complete sets of equipment all are equipped with this three devices.By D
2, A
2, A
4, R forms main floating current indicating circuit (to the floating electric current of ickel-cadmium cell group E master) main to fill expression battery pack E electricity consumption more, voltage drop is too low, need the rapid recharge charging, floating charge represents that battery voltage is normal, though do not discharge but also there is trace to consume, need uninterrupted little electric current supply charging, main charging stream is big than floating current, A
2It is main charging stream Table A
4Be the floating current table, during main filling, by F
1Charging, electric current passes through D
2Flow through A
2Show main charging stream, during floating charge by F
2Charging, because the R pressure drop is less, D
2Not conducting, then floating current is by R flow path A
4, show floating current, because A
2, A
4The range scale difference more accurately like this reflects main floating current, but Cadmium Nickel Battery keeps normal standby status.D
1, D
3, D
9, D
9Be the protection diode, make electric current only allow a direction to flow through D
4-D
8For series connection two utmost point groups of ickel-cadmium cell E, according to the voltage swing of controlling voltage KM+, KM-, some groups of short circuits, normal with the voltage that keeps KM+, KM-, the short circuit mode can be manually, also can be automatically.K
1, K
2Be total lock switch, Q
1, Q
2, Q
3Be power switch, Q
4Be discharge switch
During work, connect K
1, K
2, Q
1Then the utility model work is powered outward by the controlling voltage alignment, works as Q
2Beat when 1 position F
1To battery E master charging, work as Q
2Beat when 2 positions F
2Give battery E floating charge.Q
2Generally all beat in 2 positions when work, this moment is with Q
3Connect, then battery pack E is in stand-by state always.When power plant breaks down, or transformer station's tripping operation, then three-phase alternating current short of electricity, this moment, ickel-cadmium cell group E passed through D incessantly
4-D
8Outwards power supply guarantees power plant, and the normal operation of substation equipment (for example illumination, various electromagnetic operating mechanism, communication etc.) the utility model stand-by power supply drops into, and does not have blanking time.
The utlity model has the precision height, Bo Wen Department number is little, in-put of spare power supply continuously every etc. advantage, again because F1、F
2Can replace each other, make the utlity model has high reliability work characteristics this be general dc source complexes can't be obtained
Claims (2)
1, full-automatic nickel cadmium cell DC power supply the complete sets of equipment, it has:
Flasher B
1, insulation monitoring and warning device B
2, voltage monitor B
3, be used for monitoring and indication control bus KM+, KM-voltage and insulation status.
A main charging circuit F
1, main charging route controllable silicon three-phase bridge rectifier circuit constitutes voltage, current double closed-loop control, constant voltage output.
A floating charge circuit F
2, floating charge circuit controllable silicon three-phase bridge rectifier circuit constitutes, voltage, and current double closed-loop control, constant voltage output is characterized in that, main charging road F
1Direct controlling voltage line KM+, KM-, and these full-automatic nickel cadmium cell DC power supply the complete sets of equipment also have the master, the floating current testing circuit.
2, full-automatic nickel cadmium cell direct current the complete sets of equipment as claimed in claim 1 is characterized in that master, floating current testing circuit are by diode D
2, resistance R and main charging stream Table A
2The floating current Table A
4Constitute R and ammeter A
4Series connection back and diode D
2Parallel connection, and then with ammeter A
2Series connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90223725 CN2093455U (en) | 1990-11-20 | 1990-11-20 | Full-automatic cadmium-nickel accumulator d.c. power supply complete set equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90223725 CN2093455U (en) | 1990-11-20 | 1990-11-20 | Full-automatic cadmium-nickel accumulator d.c. power supply complete set equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2093455U true CN2093455U (en) | 1992-01-15 |
Family
ID=4901425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90223725 Withdrawn CN2093455U (en) | 1990-11-20 | 1990-11-20 | Full-automatic cadmium-nickel accumulator d.c. power supply complete set equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2093455U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576776A (en) * | 2016-03-08 | 2016-05-11 | 武汉瑞源电力设备有限公司 | Lithium ion storage battery power and communication DC power system |
-
1990
- 1990-11-20 CN CN 90223725 patent/CN2093455U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576776A (en) * | 2016-03-08 | 2016-05-11 | 武汉瑞源电力设备有限公司 | Lithium ion storage battery power and communication DC power system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |