CN201584672U - Novel power distribution and transformation device - Google Patents
Novel power distribution and transformation device Download PDFInfo
- Publication number
- CN201584672U CN201584672U CN2009202766310U CN200920276631U CN201584672U CN 201584672 U CN201584672 U CN 201584672U CN 2009202766310 U CN2009202766310 U CN 2009202766310U CN 200920276631 U CN200920276631 U CN 200920276631U CN 201584672 U CN201584672 U CN 201584672U
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- transformer
- vacuum switch
- coil
- high voltage
- voltage measuring
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- Expired - Fee Related
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Abstract
The utility model discloses a novel power distribution and transformation device which comprises a transformer; the transformer is connected with a vacuum switch and a high voltage metering box; two current transducers are arranged in the vacuum switch to realize overcurrent and quick-break protections of the transformer; two sets of high voltage windings are arranged in the high voltage metering box, whereas one set of the winding is used for precision metering and the other set of the winding outputs 220 V alternating current and is connected with an opening/closing power source of the vacuum switch and a protection and control power source of the transformer; and a 0.2S current transducer is also arranged in the high voltage metering box, with the secondary winding connected with a kilowatt-hour meter. The novel power distribution and transformation device is compact in structure, simple in operation, full in function and low in cost and can save electricity cost.
Description
Technical field
The utility model belongs to the distribution technique field, particularly a kind of novel distribution transformer device.
Background technology
For the distribution transformer more than the vast rural area 800KVA; since be equipped with transformer gently, heavily protection; excess temperature, overtemperature prote and protections such as overcurrent, quick-break; in order to realize the performance of these protections; devices such as incoming line cabinet, metering cabinet, PT cabinet, protection cabinet, power cabinet will be installed usually; so many equipment is installed is also needed to build switchgear house; at a rough estimate; the expense that above-mentioned corollary equipment is installed approximately needs about 250,000 yuan; such result is; not only take a large amount of construction funds, but also increased the maintenance load of equipment greatly.
The utility model content
Be to solve the above-mentioned defective that prior art exists, the purpose of this utility model is to provide a kind of compact conformation, and is simple to operate, multiple functional, and cost is low, novel distribution transformer device that can the electrical energy saving cost.
For achieving the above object; the technical solution adopted in the utility model is: this novel distribution transformer device has transformer; it is characterized in that: described transformer is connected with vacuum switch and High-voltage measuring box; be provided with two in the described vacuum switch in order to the overcurrent of realization transformer and the current transformer of fast tripping protection; be provided with two cover potential windings in the described High-voltage measuring box; one cover coil is used for delicate metering; 220 volts of voltages of another set of coil output AC; branch with vacuum switch; the protection of power switch and transformer; the control power circuit connects; also be provided with 0.2S level current transformer in the described High-voltage measuring box, its secondary coil is connected with kilowatt-hour meter.
Adopt the beneficial effect of technique scheme: this novel distribution transformer device; have the vacuum switch and the High-voltage measuring box that connect by transformer; be provided with two current transformers in the described vacuum switch, its current ratio adjustable size is whole, in order to realize the overcurrent and the fast tripping protection of transformer.Be provided with two cover potential windings in the described High-voltage measuring box, a cover coil is for delicate metering usefulness, 220 volts voltages of another set of coil output AC, can be used as branch, power switch and the transformer of vacuum switch protection, control power supply.Also be provided with 0.2S level current transformer in the described High-voltage measuring box, its secondary coil can be supplied with the measurement electric current of kilowatt-hour meter.Compared with prior art, this novel distribution transformer device has compact conformation, and simple to operate, multiple functional, cost is low, and its investment only needs about 180,000 yuan, accounts for less than 8 percent of existing equipment, obviously the electrical energy saving cost.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is a secondary schematic diagram of the present utility model.
Fig. 2 is a current transformer schematic diagram in the vacuum switch.
Embodiment
As Fig. 1; novel distribution transformer device shown in 2; has transformer; described transformer is connected with vacuum switch; be provided with two current transformer LHa in the described vacuum switch; LHc; current transformer LHa is in series with two current relay ASD; AGL; current transformer LHc is in series with two current relay CSD; CGL; in order to realize the overcurrent and the fast tripping protection of transformer; transformer is connected with and is provided with two cover potential windings in the described High-voltage measuring box of High-voltage measuring box; one cover coil is used for delicate metering; 220 volts of voltages of another set of coil output AC; branch with vacuum switch; the protection of power switch and transformer; the control power circuit connects; also be provided with 0.2S level current transformer in the described High-voltage measuring box, its secondary coil is connected with kilowatt-hour meter.Above-mentioned distribution transformer device operation principle: (1), when transformer coil breaks down, heavy Buchholz relay contact ZWS closure, make outlet auxiliary relay BCJ coil charged, the BCJ contact is connected trip(ping) circuit again, at this moment, breaking coil TQ action makes the vacuum switch tripping operation, thereby cut off the electricity supply, the accident that prevents enlarges.(2), when the transformer internal temperature reaches when adjusting numerical value, the electric contact CW closure of thermometer makes outlet auxiliary relay BCJ coil charged, the BCJ contact is connected trip(ping) circuit again, at this moment, breaking coil TQ action makes vacuum switch tripping operation outage.(3), when the 10KV loop occurs being several times as much as the rated current of transformer, current relay ASD or CSD junction closure make outlet auxiliary relay BCJ coil charged, the BCJ contact is connected trip(ping) circuit again, at this moment, breaking coil TQ action makes vacuum switch tripping operation outage.(4), current relay AGL or CGL junction closure when the overload electric current appears in transformer, make time relay coil charged, in setting time, do not disappear as if the overload electric current, time relay contact SJ closure then, make outlet auxiliary relay BCJ coil charged, the BCJ contact is connected trip(ping) circuit again, at this moment, breaking coil TQ action makes vacuum switch tripping operation outage.
Claims (1)
1. novel distribution transformer device; has transformer; it is characterized in that: described transformer is connected with vacuum switch and High-voltage measuring box; be provided with two in the described vacuum switch in order to the overcurrent of realization transformer and the current transformer of fast tripping protection; be provided with two cover potential windings in the described High-voltage measuring box; one cover coil is used for delicate metering; 220 volts of voltages of another set of coil output AC; branch with vacuum switch; the protection of power switch and transformer; the control power circuit connects; also be provided with 0.2S level current transformer in the described High-voltage measuring box, its secondary coil is connected with kilowatt-hour meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202766310U CN201584672U (en) | 2009-12-08 | 2009-12-08 | Novel power distribution and transformation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202766310U CN201584672U (en) | 2009-12-08 | 2009-12-08 | Novel power distribution and transformation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201584672U true CN201584672U (en) | 2010-09-15 |
Family
ID=42726684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202766310U Expired - Fee Related CN201584672U (en) | 2009-12-08 | 2009-12-08 | Novel power distribution and transformation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201584672U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102487190A (en) * | 2010-12-01 | 2012-06-06 | 河南省电力公司南阳供电公司 | High-voltage side protection device of transformer |
| US20160011247A1 (en) * | 2012-11-15 | 2016-01-14 | State Grid Corporation Of China | Metering circuit apparatus and method for implementing metering |
-
2009
- 2009-12-08 CN CN2009202766310U patent/CN201584672U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102487190A (en) * | 2010-12-01 | 2012-06-06 | 河南省电力公司南阳供电公司 | High-voltage side protection device of transformer |
| CN102487190B (en) * | 2010-12-01 | 2016-08-17 | 国网河南省电力公司南阳供电公司 | High-voltage side protection device of transformer |
| US20160011247A1 (en) * | 2012-11-15 | 2016-01-14 | State Grid Corporation Of China | Metering circuit apparatus and method for implementing metering |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100915 Termination date: 20121208 |