CN104124632A - Combined intelligent substation - Google Patents
Combined intelligent substation Download PDFInfo
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- CN104124632A CN104124632A CN201410400666.6A CN201410400666A CN104124632A CN 104124632 A CN104124632 A CN 104124632A CN 201410400666 A CN201410400666 A CN 201410400666A CN 104124632 A CN104124632 A CN 104124632A
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Abstract
The invention discloses a combined intelligent substation which belongs to the technical field of power distribution automation, and particularly relates to a combined intelligent substation. The invention provides a combined intelligent substation which is safe and reliable, and short in building time. The combined intelligent substation provided by the invention adopts the following technical scheme: the combined intelligent substation provided by the invention comprises a transformer heat dissipation box body, a transformer box body, a GIS combined electric appliance box body, an 10kV switch cabinet box body, an 10kV reactive compensation box body and a secondary combined control box body; the structural essential is that the transformer heat dissipation box body, the transformer box body, the 10kV switch cabinet box body, the 10kV reactive compensation box body and the secondary combined control box body are sequentially connected end to end, and the GIS combined electric appliance box body is arranged at the upper end of the 10kV switch cabinet box body.
Description
Technical field
The invention belongs to Distribution Automation Technology field, relate in particular to a kind of combined intelligent transformer station.
Background technology
The development in city directly causes network load constantly to increase, for reducing the radius of electricity supply of transformer station, improve the reliability of its economy operation of power grid and power supply, substation site selection is to go deep into load center as main, in the requirement being becoming tight urban land resource day and urban look is planned, need a kind of highly reliable, safe, the time of building a station is short, and the transformer station that environmental protection and floor space are few solves.
Summary of the invention
The present invention is exactly for the problems referred to above, and a kind of safe and reliable, combined intelligent transformer station that the time of building a station is short is provided.
For achieving the above object, the present invention adopts following technical scheme, the present invention includes transformer heat radiation box, transformer-cabinet, GIS combined electrical apparatus casing, 10kV switchgear cabinet, 10kV reactive power compensation box body and secondary combination and control casing, the casing setting that joins end to end is successively controlled in its structural feature transformer heat radiation box, transformer-cabinet, 10kV switchgear cabinet, 10kV reactive power compensation box body, secondary combination, and GIS combined electrical apparatus casing is placed in the upper end of 10kV switchgear cabinet.
As a kind of preferred version, in transformer-cabinet of the present invention, be provided with transformer; In GIS combined electrical apparatus casing, be provided with GIS combined electrical apparatus; In 10kV switchgear cabinet, be provided with 10kV switch cubicle and 10kV single-phase earthing arc extinction cabinet, 10kV switch cubicle is arranged on 10kV single-phase earthing arc extinction cabinet upper end; In 10kV reactive power compensation box body, be provided with 10kV reactive compensation cabinet, in secondary combination control casing, be provided with secondary combination control flow.
The incoming line of described GIS combined electrical apparatus is connected with inlet wire cable, the line outlet of GIS combined electrical apparatus is connected with the high pressure end of incoming cables of transformer by the first connection cable, the low-pressure line-outgoing end of transformer is connected with 10kV switch cubicle end of incoming cables by the second connection cable, and 10kV switch cubicle feeder line end is connected with 10kV reactive compensation cabinet end of incoming cables by the 3rd connection cable.
As another kind of preferred version, transformer-cabinet of the present invention comprises upper box and lower box, upper box lower end is connected by securing member with lower box upper end, the sidewall paneling of transformer-cabinet and door-plate all adopt fire protection flame retarding layer structure are set between double-level-metal plate, between sidewall paneling and door-plate, be connected by section bar column, front end face and the side end face of the link slot of section bar column and door-plate link are provided with sealing strip; On the sidewall of transformer-cabinet and transformer heat radiation box, be provided with exhaust outlet, exhaust outlet place is provided with ventilating fan.
As another kind of preferred version, transformer tank external surface of the present invention is provided with white paint layer, and transformer-cabinet inner surface is provided with pitch-dark layer; Exhaust outlet on described transformer tank body sidewall is four, and four exhaust outlets are symmetricly set on two long sidewalls of lower box; On the transformer tank body wall in described ventilating fan outside and transformer heat dissipation tank body wall, be provided with the outdoor ventilation window with screen pack; Described transformer heat radiation box inwall is provided with air-conditioning and temperature sensor, and transformer heat radiation box outer wall is provided with air-conditioner outdoor unit corresponding to air-conditioning.
As another kind of preferred version, in transformer heat radiation box of the present invention, be provided with air-conditioning, ventilating fan control device, control device comprises logic control part, contactor control section and air-conditioning control section, the signal input port of logic control part is connected with described temperature sensor signal output port, the control signal output port of logic control part respectively with the control signal input port of contactor control section, the control signal input port of air-conditioning control section is connected, the power input mouth of air-conditioning control section, the power input mouth of contactor control section is all connected with three phase mains, the control signal output port of air-conditioning control section is connected with the control signal input port of air-conditioning, the control signal output port of contactor control section is connected with the control signal output port of ventilating fan.
Described transformer tank temperature reaches 35 while spending, and the contactor of logic control part starting contactor control section closes, and starts ventilating fan work; When the working temperature of transformer reaches 30 while spending, the contactor of logic control part control contactor divides, and ventilating fan is shut down.
When transformer tank temperature reaches 40 while spending, exhaust fan stop working, logic control part starts air-conditioning, by air-conditioning, transformer is lowered the temperature, and when the working temperature of transformer-cabinet reaches 35 while spending, air-conditioning is shut down, by ventilating fan air draft; Described transformer adopting SFZ9-20000/110 transformer, transformer base and junction, transformer-cabinet bottom surface are provided with Rubber shock-absorbing pad.
As another kind of preferred version, GIS combined electrical apparatus of the present invention is arranged on GIS combined electrical apparatus casing middle part, and GIS combined electrical appliance box body length direction front end Width front side is provided with RTQH-60 type SF6 gas specific equipment; Length direction front portion, through Width front side to length direction rear end, then is turned to length direction rear portion Width rear side and is provided with C shape maintenance channel through Width in GIS combined electrical apparatus casing.
As another kind of preferred version, the sidewall paneling of 10kV switchgear cabinet of the present invention and door-plate all adopt fire protection flame retarding layer structure are set between double-level-metal plate, between sidewall paneling and door-plate, be connected by section bar column, front end face and the side end face of the link slot of section bar column and door-plate link are provided with sealing strip; 10kV switch cubicle is arranged on the rear side of the middle part Width of the length direction of 10kV switchgear cabinet, length direction front end Width rear side, through length direction, Width front side to length direction rear end, then is provided with Qian shape maintenance channel through Width to Width rear side again in 10kV switchgear cabinet; The door-plate of described 10kV switchgear cabinet is arranged on Width front side, 10kV switchgear cabinet length direction rear end, and the inner outer end of door-plate is provided with 70 fire engine access locks; Described 10kV switch cubicle adopts fixed switching cabinet.
As another kind of preferred version, 10kV single-phase earthing arc extinction cabinet of the present invention comprises JDBH-10 type earthing wire-selecting, phase selection device, JDBH-10 type earthing wire-selecting, phase selection device Real-time Collection substation busbars phase, line voltage, residual voltage, the modular angle of residual voltage and line voltage change judgement system have or not single phase ground fault and ground connection separate, in the time there is single phase ground fault, control corresponding separate single-phase circuit breaker K1, K2, K3 rapid closing, after corresponding separate breaker closing, force fault phase equipotential over the ground, extinguish ground arc; In the time that ground property is intermittent ground connection, change the ground connection of unstable state into stable metal ground connection.
After single-phase circuit breaker closes a floodgate, through setting-up time time delay, enabling signal generator, inject 220HZ voltage to frequency by the main secondary coil W3 of Low ESR transformer being connected with signal generator, the Low ESR transformer primary winding W1 being connected with single-phase circuit breaker K1, K2, K3 produces earth current, JDBH-10 type earthing wire-selecting, phase selection device gather voltage and the current signal of the secondary secondary coil W2 feedback of Low ESR transformer, isolate the 220HZ frequency signal wherein injecting; When impedance ground returns to the normal status value of setting, differentiate earth fault and disappear, JDBH-10 type earthing wire-selecting, phase selection device control single-phase circuit breaker K1, K2, K3 separating brake, single phase ground fault involution.
If earth fault fails to recover for a long time, the fault loop of selecting along earthing wire-selecting by TXDW-100 type hand-hold type signal receiving device is maked an inspection tour; When the signal of hand-hold type signal receiving device is gradually when grow, earth point nearby, shows and receives signal when dying down by force, is fault point, completes single phase ground fault location.
Secondly, 10kV reactive compensation cabinet of the present invention comprises DRQK-10/400 type capacitance and reactance modulation switch, the first input end mouth of capacitance and reactance modulation switch is connected with reactor 2/3 tap, the second input port of capacitance and reactance modulation switch is connected with reactor 1/3 tap, the 3rd input port of capacitance and reactance modulation switch is connected with reactor one termination, and another termination of reactor is connected with described 10kV reactive compensation cabinet end of incoming cables by current transformer, single-phase circuit breaker, isolating switch successively; The first output port of capacitance and reactance modulation switch is connected with first lightning arrester one end, first fuse one end, first resistance one end, first discharge coil one end respectively, the first lightning arrester other end ground connection, the first fuse other end is connected with first electric capacity one end, and the first resistance other end is connected with second electric capacity one end; The second output port of capacitance and reactance modulation switch is connected with second lightning arrester one end, second fuse one end, second resistance one end, second discharge coil one end respectively, the second lightning arrester other end ground connection, the second fuse other end is connected with the 3rd electric capacity one end, and the second resistance other end is connected with the 4th electric capacity one end; The described first electric capacity other end, the second electric capacity other end, the 3rd electric capacity other end, the 4th electric capacity other end, the first discharge coil other end, the second discharge coil other end are all connected with ground wire, described the second resistance and the 4th electric capacity be combined as many groups; The capacity of described the first fuse, the first resistance, the first discharge coil, the first electric capacity, the second electric capacity composition parallel circuits is 1:2 with the ratio of the capacity of the second fuse, the second resistance, the second discharge coil, the 3rd electric capacity, the 4th electric capacity composition parallel circuits.
In addition, secondary of the present invention combination is controlled the sidewall paneling of casing and door-plate and is all adopted fire protection flame retarding layer structure is set between double-level-metal plate, between sidewall paneling and door-plate, be connected by section bar column, front end face and the side end face of the link slot of section bar column and door-plate link are provided with sealing strip; On the sidewall of secondary combination control casing, be provided with exhaust outlet, exhaust outlet place is provided with ventilating fan; The door-plate that casing is controlled in described secondary combination is arranged on secondary combination Width front side, control cabinet body length direction rear end, and the inner outer end of door-plate is provided with 70 fire engine access locks; Described secondary combination control flow adopts dually arrayed, two row secondary combination control flows are symmetricly set on front side, the rear side of secondary combination control casing insied width direction, between two row secondaries combination control flows, are provided with along secondary combination control cabinet body length direction the rectangle maintenance channel that connects secondary combination control casing.
Beneficial effect of the present invention.
The present invention will press electric equipment and mutual connection and linear quadratic control equipment thereof to combine in transformer, GIS high-voltage combined electrical apparatus, 10kV, different with components and parts by main electrical scheme, centralized arrangement is in several casings in a certain way.Have the cycle of building a station short, the feature such as security reliability is high, appearance looks elegant, has changed the construction mode of traditional transformer station completely, is a kind of desirable Novel transformer substation pattern.
On-the-spot installment and debugging is convenient in the present invention, and most job placement in the design of specialized factory with machine, is shortened to the cycle that electric substation installs.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.Protection range of the present invention is not only confined to the statement of following content.
Fig. 1 is structural representation of the present invention.
Fig. 2 is wiring schematic diagram of the present invention.
Fig. 3 is transformer-cabinet structural representation of the present invention.
Fig. 4 is the vertical view of Fig. 3.
Fig. 5 ventilating fan structure schematic diagram of the present invention.
Fig. 6 is casing endothecium structure schematic diagram of the present invention.
Fig. 7 is transformer heat radiation box structural representation of the present invention.
Fig. 8 is air-conditioning of the present invention, ventilating fan control device schematic block circuit diagram.
Fig. 9 is GIS combined electrical apparatus body structure schematic diagram of the present invention.
Figure 10 is the vertical view of Fig. 9.
Figure 11 is 10kV switchgear cabinet structural representation of the present invention.
Figure 12 is the vertical view of Figure 11.
Figure 13 is 10kV single-phase earthing arc extinction cabinet circuit theory diagrams of the present invention.
Figure 14 is 10kV reactive compensation cabinet circuit theory diagrams of the present invention.
Figure 15 is 10kV reactive compensation cabinet structural representation of the present invention.
Figure 16 is that casing structure schematic diagram is controlled in secondary combination of the present invention.
Figure 17 is the vertical view of Figure 16.
In figure, 1 is transformer heat radiation box, 2 is transformer-cabinet, 3 is transformer, 4 is GIS combined electrical apparatus, 5 is 10kV switch cubicle, 6 is GIS combined electrical apparatus casing, 7 is inlet wire cable, 8 is 10kV reactive compensation cabinet, 9 is 10kV reactive power compensation box body, 10 is secondary combination control casing, 11 is secondary combination control flow, 12 is the 3rd connection cable, 13 is 10kV switchgear cabinet, 14 is 10kV single-phase earthing arc extinction cabinet, 15 is the second connection cable, 16 is lower box, 17 is upper box, 18 is ventilating fan, 19 is fire protection flame retarding layer, 20 is door-plate, 21 is sealing strip, 22 is section bar column, 23 is sidewall paneling, 24 is transformer heat radiation box base, 25 is screen pack, 26 is temperature sensor, 27 is air-conditioning, 28 is air-conditioner outdoor unit, 29 is outdoor ventilation window, 30 is SF6 gas specific equipment, 31 is C shape maintenance channel, 32 is Qian shape maintenance channel, 33 is earthing wire-selecting, phase selection device, 34 is rectangle maintenance channel.
Embodiment
As shown in the figure, the present invention includes transformer heat radiation box, transformer-cabinet, GIS combined electrical apparatus casing, 10kV switchgear cabinet, 10kV reactive power compensation box body and secondary combination and control casing, the casing setting that joins end to end is successively controlled in its structural feature transformer heat radiation box, transformer-cabinet, 10kV switchgear cabinet, 10kV reactive power compensation box body, secondary combination, and GIS combined electrical apparatus casing is placed in the upper end of 10kV switchgear cabinet.
In described transformer-cabinet, be provided with transformer; In GIS combined electrical apparatus casing, be provided with GIS combined electrical apparatus; In 10kV switchgear cabinet, be provided with 10kV switch cubicle and 10kV single-phase earthing arc extinction cabinet, 10kV switch cubicle is arranged on 10kV single-phase earthing arc extinction cabinet upper end; In 10kV reactive power compensation box body, be provided with 10kV reactive compensation cabinet, in secondary combination control casing, be provided with secondary combination control flow.
The incoming line of described GIS combined electrical apparatus is connected with inlet wire cable, the line outlet of GIS combined electrical apparatus is connected with the high pressure end of incoming cables of transformer by the first connection cable, the low-pressure line-outgoing end of transformer is connected with 10kV switch cubicle end of incoming cables by the second connection cable, and 10kV switch cubicle feeder line end is connected with 10kV reactive compensation cabinet end of incoming cables by the 3rd connection cable.
Described transformer-cabinet comprises upper box and lower box, upper box lower end is connected by securing member with lower box upper end, the sidewall paneling of transformer-cabinet and door-plate all adopt fire protection flame retarding layer structure are set between double-level-metal plate, between sidewall paneling and door-plate, be connected by section bar column, front end face and the side end face of the link slot of section bar column and door-plate link are provided with sealing strip; On the sidewall of transformer-cabinet and transformer heat radiation box, be provided with exhaust outlet, exhaust outlet place is provided with ventilating fan.Transformer-cabinet is made up of upper and lower two parts, is convenient to transport and installs.
Described transformer tank external surface is provided with white paint layer, and transformer-cabinet inner surface is provided with pitch-dark layer; Exhaust outlet on described transformer tank body sidewall is four, and four exhaust outlets are symmetricly set on two long sidewalls of lower box; On the transformer tank body wall in described ventilating fan outside and transformer heat dissipation tank body wall, be provided with the outdoor ventilation window with screen pack; Described transformer heat radiation box inwall is provided with air-conditioning and temperature sensor, and transformer heat radiation box outer wall is provided with air-conditioner outdoor unit corresponding to air-conditioning.Face the radiation coefficient of sunlight outward in order to reduce casing, the outer surface of casing adopts white, and in order to prevent fires and heat insulation requirement, the door-plate of casing adopts between double-level-metal plate and adds applied fireproofing, prevent the acute variation of temperature in casing, and effectively suppress the generation of the condensation in casing.In order to improve transformer radiating efficiency in casing, scribble pitch-darkly at box house, in the time that transformer is worked, be coated in the heat of the pitch-dark absorption transformer in casing, and discharge by box outer surface.
In described transformer heat radiation box, be provided with air-conditioning, ventilating fan control device, control device comprises logic control part, contactor control section and air-conditioning control section, the signal input port of logic control part is connected with described temperature sensor signal output port, the control signal output port of logic control part respectively with the control signal input port of contactor control section, the control signal input port of air-conditioning control section is connected, the power input mouth of air-conditioning control section, the power input mouth of contactor control section is all connected with three phase mains, the control signal output port of air-conditioning control section is connected with the control signal input port of air-conditioning, the control signal output port of contactor control section is connected with the control signal output port of ventilating fan.
Described transformer tank temperature reaches 35 while spending, and the contactor of logic control part starting contactor control section closes, and starts ventilating fan work; When the working temperature of transformer reaches 30 while spending, the contactor of logic control part control contactor divides, and ventilating fan is shut down.
When transformer tank temperature reaches 40 while spending, exhaust fan stop working, logic control part starts air-conditioning, by air-conditioning, transformer is lowered the temperature, and when the working temperature of transformer-cabinet reaches 35 while spending, air-conditioning is shut down, by ventilating fan air draft; Described transformer adopting SFZ9-20000/110 transformer, transformer base and junction, transformer-cabinet bottom surface are provided with Rubber shock-absorbing pad.The transformer heat radiation box that the heat radiation of transformer is mainly connected with side by transformer-cabinet completes.
In order to reduce noise and the temperature rise of operation of transformer, there is transformer Rubber shock-absorbing pad in the mounting seat of transformer and the junction of casing.
Described GIS combined electrical apparatus is arranged on GIS combined electrical apparatus casing middle part, and GIS combined electrical appliance box body length direction front end Width front side is provided with RTQH-60 type SF6 gas specific equipment; Length direction front portion, through Width front side to length direction rear end, then is turned to length direction rear portion Width rear side and is provided with C shape maintenance channel through Width in GIS combined electrical apparatus casing.
The sidewall paneling of described 10kV switchgear cabinet and door-plate all adopt fire protection flame retarding layer structure are set between double-level-metal plate, between sidewall paneling and door-plate, be connected by section bar column, front end face and the side end face of the link slot of section bar column and door-plate link are provided with sealing strip; 10kV switch cubicle is arranged on the rear side of the middle part Width of the length direction of 10kV switchgear cabinet, length direction front end Width rear side, through length direction, Width front side to length direction rear end, then is provided with Qian shape maintenance channel through Width to Width rear side again in 10kV switchgear cabinet; The door-plate of described 10kV switchgear cabinet is arranged on Width front side, 10kV switchgear cabinet length direction rear end, and the inner outer end of door-plate is provided with 70 fire engine access locks; Described 10kV switch cubicle adopts fixed switching cabinet.In the time of outlet special circumstances, the people of casing the inside operates 70 fire engine access locks, and door is opened automatically.In addition, switch cubicle adopts fixed switching cabinet, non-maintaining.
Described 10kV single-phase earthing arc extinction cabinet comprises JDBH-10 type earthing wire-selecting, phase selection device, JDBH-10 type earthing wire-selecting, phase selection device Real-time Collection substation busbars phase, line voltage, residual voltage, the modular angle of residual voltage and line voltage change judgement system have or not single phase ground fault and ground connection separate, in the time there is single phase ground fault, control corresponding separate single-phase circuit breaker K1, K2, K3 rapid closing, after corresponding separate breaker closing, force fault phase equipotential over the ground, extinguish ground arc; In the time that ground property is intermittent ground connection, change the ground connection of unstable state into stable metal ground connection.
After single-phase circuit breaker closes a floodgate, through setting-up time time delay, enabling signal generator, inject 220HZ voltage to frequency by the main secondary coil W3 of Low ESR transformer being connected with signal generator, the Low ESR transformer primary winding W1 being connected with single-phase circuit breaker K1, K2, K3 produces earth current, JDBH-10 type earthing wire-selecting, phase selection device gather voltage and the current signal of the secondary secondary coil W2 feedback of Low ESR transformer, isolate the 220HZ frequency signal wherein injecting; When impedance ground returns to the normal status value of setting, differentiate earth fault and disappear, JDBH-10 type earthing wire-selecting, phase selection device control single-phase circuit breaker K1, K2, K3 separating brake, single phase ground fault involution.
If earth fault fails to recover for a long time, the fault loop of selecting along earthing wire-selecting by TXDW-100 type hand-hold type signal receiving device is maked an inspection tour; When the signal of hand-hold type signal receiving device is gradually when grow, earth point nearby, shows and receives signal when dying down by force, is fault point, completes single phase ground fault location.
The present invention adopts one-phase ground protection; the automatic resetting of realizing single-phase earthing extinguishing arc module in the time occurring when single phase ground fault earth fault to carry out mutually fault location in protection situation and disappear with fault inspecting, has solved ground connection phase selection, route selection, localization of fault precision and the under-sensitive problem of small current neutral grounding system existence.
The present invention, after corresponding separate breaker closing, forces fault phase equipotential over the ground, realizes and extinguishes ground arc, provides effective protection to human body electrification simultaneously, avoids personal injury accident to occur.In the time that ground property is intermittent ground connection, this device can change the ground connection of unstable state into stable metal ground connection, avoids intermittent superpotential generation.
The present invention injects 220HZ frequency signal, and the integral multiple of non-rated frequency is convenient to signal identification and anti-stop signal and is disturbed.
Described 10kV reactive compensation cabinet comprises DRQK-10/400 type capacitance and reactance modulation switch, the first input end mouth of capacitance and reactance modulation switch is connected with reactor 2/3 tap, the second input port of capacitance and reactance modulation switch is connected with reactor 1/3 tap, the 3rd input port of capacitance and reactance modulation switch is connected with reactor one termination, and another termination of reactor is connected with described 10kV reactive compensation cabinet end of incoming cables by current transformer, single-phase circuit breaker, isolating switch successively; The first output port of capacitance and reactance modulation switch is connected with first lightning arrester one end, first fuse one end, first resistance one end, first discharge coil one end respectively, the first lightning arrester other end ground connection, the first fuse other end is connected with first electric capacity one end, and the first resistance other end is connected with second electric capacity one end; The second output port of capacitance and reactance modulation switch is connected with second lightning arrester one end, second fuse one end, second resistance one end, second discharge coil one end respectively, the second lightning arrester other end ground connection, the second fuse other end is connected with the 3rd electric capacity one end, and the second resistance other end is connected with the 4th electric capacity one end; The described first electric capacity other end, the second electric capacity other end, the 3rd electric capacity other end, the 4th electric capacity other end, the first discharge coil other end, the second discharge coil other end are all connected with ground wire, described the second resistance and the 4th electric capacity be combined as many groups; The capacity of described the first fuse, the first resistance, the first discharge coil, the first electric capacity, the second electric capacity composition parallel circuits is 1:2 with the ratio of the capacity of the second fuse, the second resistance, the second discharge coil, the 3rd electric capacity, the 4th electric capacity composition parallel circuits.
Reactive compensation cabinet of the present invention gathers 10kV side and goes out line current, 10kV bus voltage signal, calculates in real time reactive power.Capacitor divides into groups according to the capacity of 1:2, by synchronous capacitance and reactance modulation switch be connected the grouping ladder compensation that can form 3 group capacitor groups with the reactor of 1/3,2/3,3/3 tap.Zero passage switch adopts single-phase circuit breaker, realizes the no-flashy-flow of capacitor group and without overvoltage switching.Discharge coil is connected in parallel on the two ends of capacitor, and as discharge resistance and the voltage measurement of capacitor, lightning arrester prevents overvoltage protection.
The combination of described secondary is controlled the sidewall paneling of casing and door-plate and is all adopted fire protection flame retarding layer structure is set between double-level-metal plate, between sidewall paneling and door-plate, be connected by section bar column, front end face and the side end face of the link slot of section bar column and door-plate link are provided with sealing strip; On the sidewall of secondary combination control casing, be provided with exhaust outlet, exhaust outlet place is provided with ventilating fan; The door-plate that casing is controlled in described secondary combination is arranged on secondary combination Width front side, control cabinet body length direction rear end, and the inner outer end of door-plate is provided with 70 fire engine access locks; Described secondary combination control flow adopts dually arrayed, two row secondary combination control flows are symmetricly set on front side, the rear side of secondary combination control casing insied width direction, between two row secondaries combination control flows, are provided with along secondary combination control cabinet body length direction the rectangle maintenance channel that connects secondary combination control casing.In casing, control flow adopts dually arrayed, is convenient to make an inspection tour and maintenance.
Be understandable that, above about specific descriptions of the present invention, only for being described, the present invention is not limited to the described technical scheme of the embodiment of the present invention, those of ordinary skill in the art is to be understood that, still can modify or be equal to replacement the present invention, to reach identical technique effect; Use needs as long as meet, all within protection scope of the present invention.
Claims (10)
1.
combined intelligent transformer station, comprise transformer heat radiation box, transformer-cabinet, GIS combined electrical apparatus casing, 10kV switchgear cabinet, 10kV reactive power compensation box body and secondary combination control casing, it is characterized in that transformer heat radiation box, transformer-cabinet, 10kV switchgear cabinet, 10kV reactive power compensation box body, secondary combination control the casing setting that joins end to end successively, GIS combined electrical apparatus casing is placed in the upper end of 10kV switchgear cabinet.
2.
according to claim 1, combined intelligent transformer station, is characterized in that being provided with transformer in described transformer-cabinet; In GIS combined electrical apparatus casing, be provided with GIS combined electrical apparatus; In 10kV switchgear cabinet, be provided with 10kV switch cubicle and 10kV single-phase earthing arc extinction cabinet, 10kV switch cubicle is arranged on 10kV single-phase earthing arc extinction cabinet upper end; In 10kV reactive power compensation box body, be provided with 10kV reactive compensation cabinet, in secondary combination control casing, be provided with secondary combination control flow;
the incoming line of described GIS combined electrical apparatus is connected with inlet wire cable, the line outlet of GIS combined electrical apparatus is connected with the high pressure end of incoming cables of transformer by the first connection cable, the low-pressure line-outgoing end of transformer is connected with 10kV switch cubicle end of incoming cables by the second connection cable, and 10kV switch cubicle feeder line end is connected with 10kV reactive compensation cabinet end of incoming cables by the 3rd connection cable.
3.
combined intelligent transformer station according to claim 1, it is characterized in that described transformer-cabinet comprises upper box and lower box, upper box lower end is connected by securing member with lower box upper end, the sidewall paneling of transformer-cabinet and door-plate all adopt fire protection flame retarding layer structure are set between double-level-metal plate, between sidewall paneling and door-plate, be connected by section bar column, front end face and the side end face of the link slot of section bar column and door-plate link are provided with sealing strip; On the sidewall of transformer-cabinet and transformer heat radiation box, be provided with exhaust outlet, exhaust outlet place is provided with ventilating fan.
4.
according to claim 3, combined intelligent transformer station, is characterized in that described transformer tank external surface is provided with white paint layer, and transformer-cabinet inner surface is provided with pitch-dark layer; Exhaust outlet on described transformer tank body sidewall is four, and four exhaust outlets are symmetricly set on two long sidewalls of lower box; On the transformer tank body wall in described ventilating fan outside and transformer heat dissipation tank body wall, be provided with the outdoor ventilation window with screen pack; Described transformer heat radiation box inwall is provided with air-conditioning and temperature sensor, and transformer heat radiation box outer wall is provided with air-conditioner outdoor unit corresponding to air-conditioning.
5.
combined intelligent transformer station according to claim 4, it is characterized in that being provided with air-conditioning in described transformer heat radiation box, ventilating fan control device, control device comprises logic control part, contactor control section and air-conditioning control section, the signal input port of logic control part is connected with described temperature sensor signal output port, the control signal output port of logic control part respectively with the control signal input port of contactor control section, the control signal input port of air-conditioning control section is connected, the power input mouth of air-conditioning control section, the power input mouth of contactor control section is all connected with three phase mains, the control signal output port of air-conditioning control section is connected with the control signal input port of air-conditioning, the control signal output port of contactor control section is connected with the control signal output port of ventilating fan,
described transformer tank temperature reaches 35 while spending, and the contactor of logic control part starting contactor control section closes, and starts ventilating fan work; When the working temperature of transformer reaches 30 while spending, the contactor of logic control part control contactor divides, and ventilating fan is shut down;
when transformer tank temperature reaches 40 while spending, exhaust fan stop working, logic control part starts air-conditioning, by air-conditioning, transformer is lowered the temperature, and when the working temperature of transformer-cabinet reaches 35 while spending, air-conditioning is shut down, by ventilating fan air draft; Described transformer adopting SFZ9-20000/110 transformer, transformer base and junction, transformer-cabinet bottom surface are provided with Rubber shock-absorbing pad.
6.
according to claim 1, combined intelligent transformer station, is characterized in that described GIS combined electrical apparatus is arranged on GIS combined electrical apparatus casing middle part, and GIS combined electrical appliance box body length direction front end Width front side is provided with RTQH-60 type SF6 gas specific equipment; Length direction front portion, through Width front side to length direction rear end, then is turned to length direction rear portion Width rear side and is provided with C shape maintenance channel through Width in GIS combined electrical apparatus casing.
7.
combined intelligent transformer station according to claim 1, it is characterized in that the sidewall paneling of described 10kV switchgear cabinet and door-plate all adopt arranges fire protection flame retarding layer structure between double-level-metal plate, between sidewall paneling and door-plate, be connected by section bar column, front end face and the side end face of the link slot of section bar column and door-plate link are provided with sealing strip; 10kV switch cubicle is arranged on the rear side of the middle part Width of the length direction of 10kV switchgear cabinet, length direction front end Width rear side, through length direction, Width front side to length direction rear end, then is provided with Qian shape maintenance channel through Width to Width rear side again in 10kV switchgear cabinet; The door-plate of described 10kV switchgear cabinet is arranged on Width front side, 10kV switchgear cabinet length direction rear end, and the inner outer end of door-plate is provided with 70 fire engine access locks; Described 10kV switch cubicle adopts fixed switching cabinet.
8.
combined intelligent transformer station according to claim 1, it is characterized in that described 10kV single-phase earthing arc extinction cabinet comprises JDBH-10 type earthing wire-selecting, phase selection device, JDBH-10 type earthing wire-selecting, phase selection device Real-time Collection substation busbars phase, line voltage, residual voltage, the modular angle of residual voltage and line voltage change judgement system have or not single phase ground fault and ground connection separate, in the time there is single phase ground fault, control corresponding separate single-phase circuit breaker K1, K2, K3 rapid closing, after corresponding separate breaker closing, force fault phase equipotential over the ground, extinguish ground arc, in the time that ground property is intermittent ground connection, change the ground connection of unstable state into stable metal ground connection,
after single-phase circuit breaker closes a floodgate, through setting-up time time delay, enabling signal generator, inject 220HZ voltage to frequency by the main secondary coil W3 of Low ESR transformer being connected with signal generator, the Low ESR transformer primary winding W1 being connected with single-phase circuit breaker K1, K2, K3 produces earth current, JDBH-10 type earthing wire-selecting, phase selection device gather voltage and the current signal of the secondary secondary coil W2 feedback of Low ESR transformer, isolate the 220HZ frequency signal wherein injecting; When impedance ground returns to the normal status value of setting, differentiate earth fault and disappear, JDBH-10 type earthing wire-selecting, phase selection device control single-phase circuit breaker K1, K2, K3 separating brake, single phase ground fault involution;
if earth fault fails to recover for a long time, the fault loop of selecting along earthing wire-selecting by TXDW-100 type hand-hold type signal receiving device is maked an inspection tour; When the signal of hand-hold type signal receiving device is gradually when grow, earth point nearby, shows and receives signal when dying down by force, is fault point, completes single phase ground fault location.
9.
combined intelligent transformer station according to claim 1, it is characterized in that described 10kV reactive compensation cabinet comprises DRQK-10/400 type capacitance and reactance modulation switch, the first input end mouth of capacitance and reactance modulation switch is connected with reactor 2/3 tap, the second input port of capacitance and reactance modulation switch is connected with reactor 1/3 tap, the 3rd input port of capacitance and reactance modulation switch is connected with reactor one termination, and another termination of reactor is connected with described 10kV reactive compensation cabinet end of incoming cables by current transformer, single-phase circuit breaker, isolating switch successively; The first output port of capacitance and reactance modulation switch is connected with first lightning arrester one end, first fuse one end, first resistance one end, first discharge coil one end respectively, the first lightning arrester other end ground connection, the first fuse other end is connected with first electric capacity one end, and the first resistance other end is connected with second electric capacity one end; The second output port of capacitance and reactance modulation switch is connected with second lightning arrester one end, second fuse one end, second resistance one end, second discharge coil one end respectively, the second lightning arrester other end ground connection, the second fuse other end is connected with the 3rd electric capacity one end, and the second resistance other end is connected with the 4th electric capacity one end; The described first electric capacity other end, the second electric capacity other end, the 3rd electric capacity other end, the 4th electric capacity other end, the first discharge coil other end, the second discharge coil other end are all connected with ground wire, described the second resistance and the 4th electric capacity be combined as many groups; The capacity of described the first fuse, the first resistance, the first discharge coil, the first electric capacity, the second electric capacity composition parallel circuits is 1:2 with the ratio of the capacity of the second fuse, the second resistance, the second discharge coil, the 3rd electric capacity, the 4th electric capacity composition parallel circuits.
10.
combined intelligent transformer station according to claim 1, it is characterized in that the combination of described secondary controls the sidewall paneling of casing and door-plate and all adopt fire protection flame retarding layer structure is set between double-level-metal plate, between sidewall paneling and door-plate, be connected by section bar column, front end face and the side end face of the link slot of section bar column and door-plate link are provided with sealing strip; On the sidewall of secondary combination control casing, be provided with exhaust outlet, exhaust outlet place is provided with ventilating fan; The door-plate that casing is controlled in described secondary combination is arranged on secondary combination Width front side, control cabinet body length direction rear end, and the inner outer end of door-plate is provided with 70 fire engine access locks; Described secondary combination control flow adopts dually arrayed, two row secondary combination control flows are symmetricly set on front side, the rear side of secondary combination control casing insied width direction, between two row secondaries combination control flows, are provided with along secondary combination control cabinet body length direction the rectangle maintenance channel that connects secondary combination control casing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410400666.6A CN104124632B (en) | 2014-08-15 | 2014-08-15 | Combined intelligent transformer station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410400666.6A CN104124632B (en) | 2014-08-15 | 2014-08-15 | Combined intelligent transformer station |
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| CN104124632B CN104124632B (en) | 2016-05-18 |
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| CN105406375A (en) * | 2015-12-08 | 2016-03-16 | 安徽马钢自动化信息技术有限公司 | Vibration reduction system and vibration reduction installation method for complete equipment |
| CN106129879A (en) * | 2016-07-14 | 2016-11-16 | 山东金人电气有限公司 | A kind of high integration multifunctional comprehensive box-type substation |
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| CN106654964A (en) * | 2017-02-10 | 2017-05-10 | 广州白云电器设备股份有限公司 | Pressure relief device capable of conforming to requirements of temperature rise and internal fault pressure relief of switch cabinet |
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