Complete transformer substations (abbr. KTP) outdoor installation are used to receive electrical energy three-phase alternating current with a frequency of 50 Hz, a voltage of 6 or 10 kV, converting it into electricity with a voltage of 0.4 kV, supplying it to consumers.
The transformer substation is manufactured in accordance with TU 3412 and is used for power supply of industrial, agricultural and municipal facilities in areas with a temperate cold climate (UHL) and a temperate climate (U), with category 1 placement in accordance with GOST 15150.
Price: from 80,000 rubles. with VAT (The cost of transformers is not included)
Before ordering a substation, the customer fills out a questionnaire or sends design data so that we can prepare the best proposal for the manufacture of the substation, both in terms of color, design, and the equipment used in the PTS.
Х KTP Х Х/Х 25..2500/6(10)/0.4 Х
Types of transformer substations
Dead-end complete transformer substations are connected to only one high-voltage transmission line. Pass-through - connected to two electrical lines.
A kiosk-type transformer substation is one of the most common types of PTS. The body of such a substation is assembled from strong metal. They have good safety performance, excellent protection against environmental influences.
Outdoor installation - these are insulated substations. The body is sheathed with special panels called "sandwich". They give the substation good protection under severe climatic conditions and are equipped with SCHO-70 panels and KSO cameras. These substations are widely used in the northern regions of the Russian Federation.
Block complete transformer substation - the body is made of concrete blocks. The concrete building consists of an underground and an above-ground block.
Complete transformer substation intrashop - designed for installation only in enclosed spaces and is not suitable for operation in an open environment. Our plant manufactures KTP-VC of various types for specific needs and budgets of customers.
Mast transformer substations are used to supply electrical energy to a certain agricultural facility, these PTS have an open design.
Pole substations must be installed on special supporting pillars of the power line.
Device
Complete transformer substations KTP is a prefabricated-welded frame structure of complete factory readiness made of metal or sheathed with insulated panels of the "Sandwich" type.
The product consists of the following main compartments:
- high voltage device compartment (UVN)
- transformer compartment.
- low voltage switchgear compartment (RUNN)
The transformer substation is designed with overhead or cable input/output, both on the high and low voltage sides. Air inlet / outlet products additionally include an air inlet box (tower) for connecting overhead lines.
RUVN establishes:
- High voltage fuses;
- Disconnectors;
- Load switches;
- KSO-203 with a vacuum circuit breaker BB-6(10), provided that the power of the transformer is from 1000 to 2500 kVA;
- KSO-393 with disconnector RVZ-6(10), provided that the power of the transformer is from 25 to 160 kV-A;
- KSO-393 with a load switch VNA-6(10), provided that the power of the transformer is from 250 to 630 kV-A;
The output of power buses or cable RUVN to the inputs of the power transformer is made through bushings or insulating plates located between TO and RUVN. The entire design of the TO should make it possible to install a power transformer with a power of 25 to 4000 kVA. All compartments of the RUVN and TO have doors, gates, with blinds built into them, which make it possible to ventilate the room in the summer. It is possible, according to certain standards, to make doors in a different design.
For security human life and unauthorized access inside the TO by unauthorized people, with the disconnectors and load switches turned on, it has wooden barriers installed on vertical door posts in special eyes.
RUNN
- complete devices low-voltage series ShchO-70 TU 3414-001-365711427-2010;
- automatic switches of input and outgoing connections;
- power breakers;
- current transformers;
- a cabinet where a heating system and electricity meters are installed;
- for a two-transformer KTPN, an ATS protection and automation cabinet is installed.
Through the insulating plate and glands located between TO and RUNN, the cable and power busbars are entered into RUNN from the outputs of the power transformer. To drain outgoing cables, holes are made in the RUNN floor for their output. According to the existing PTS scheme, holes are made in the floor. Close the holes with rubber seals. The RUNN design makes it possible to connect to an overhead line of 0.4 kV and to a cable line.
With the help of bolts, a high-entry chamber, a high-entry portal are attached to the roof in order to connect it to a 6-10 kV overhead line above the RUNN or RUVN compartment on the roof. In order to ensure that the protection meets the standards, a rubber seal is supplied at the joints.
Air entry equipment
- support insulators;
- bushing insulators;
- pin insulators;
- surge arresters.
RUVN and RUNN in KTP, according to the current standards, must withstand certain number switching on and off without damage. The design of the PTS should ensure the accurate operation of metering, measuring, control, signaling devices during the operation of the devices installed in it. Without dismantling the RUNN, it is possible to replace the power transformer. All bolted and collapsible connections assembly units PTS are equipped with devices that prevent spontaneous unscrewing during operation of the equipment.
PTS are supplied fully assembled or in the form of blocks that can be assembled on site and inside of which all switching devices are already located. KTP have bushings in the performance of category A and B according to GOST 9920, these are air bushings with surge arresters on the LV and HV side.
Additional locks are provided on the outer doors of the KTP, so that no one gets inside without authorization. The locks of the substation have different secrets and are able to withstand more than 1000 closings and openings.
To illuminate panels with measuring instruments and device control handles, these panels have stationary light sources inside with a voltage of not more than 42 V, and there is also a socket for a portable lamp. In RUNN, everything is provided for the installation of portable grounding in accordance with GOST 21130.
With the help of heating elements in RUNN KTP UHL1 and RUVN, air heating is provided for the normal operation of the built-in equipment. Switching off and on of all heating devices is carried out automatically or, if desired, manually.
Without removing the voltage from the main circuits of the transformer substation, installation of devices and devices of auxiliary circuits is provided.
It is possible to monitor the state of the RUVN with high-voltage fuses. They have operation indicators without de-energizing the main circuits.
UVN blocking
- blocking of grounding knives and main knives, preventing two knives from being in working condition at the same time, preventing the switching on of the grounding knives when the main knives are on, or preventing the switching on of the main knives when the grounding knives are on;
- a blocking that does not allow the disconnector to be turned off when the load is on, when they want to turn off through a higher voltage source;
- blocking that does not allow the door to the KSO in RUVN to open when there is voltage on the busbars of the main KSO and does not allow the load switch to be turned on when the KSO door is open;
Note. At the request of the customer, other locks can be performed,
Equipment
- RUVN according to the questionnaire;
- Power transformer;
- RUNN according to the questionnaire;
- busbars provided for by the design of KTPN;
- for KTP with air inlet/outlet air inlet box KVV;
- assembly materials;
- according to the SPTA list accessories spare parts;
- additional equipment according to the questionnaire, for installation in BMZ;
Busbar transformer in KTP
Documentation
- operational documentation for transformers according to GOST 11677 - 1 copy.
- operational documentation for equipment, components;
- electrical connection diagrams and circuit diagrams - 1 copy;
- assembly drawing - 1 copy;
- statement of operational documents - 1 copy;
- Operation manual - 1 copy;
- passport for KTP - 1 copy;
Note. If the KTP contains the same type of products and components, then they are accompanied by operational documentation in one copy.
Requirements for resistance to external influences
Since the operation of the PTS takes place at any time of the year and day in the open air, they must be resistant to the environment:
- air from minus 45 to plus 40 °C for version U1;
- air from minus 60 to plus 40 °C for version UHL1;
- no more than 1000 m altitude above sea level;
- at a temperature of plus 15 ° C humidity 75%;
- from 86.6 to 106.7 kPa atmospheric pressure;
- GOST 15150 - II (industrial) type of atmosphere;
- non-explosive environment, without explosive dust, without gas-aggressive vapors, in concentrations capable of destroying insulation, metal;
- up to 9 points on the M5K-64 scale seismic resistance according to GOST 17516.1.
Main characteristics
| Parameter name | Parameter value | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Power transformer power, kVA | 25; 40; 63; 100 | 160; 250; 400; 630; 1000; 1250; 1600;2000; 2500 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Rated voltage on the high voltage side (HV), kV | 6; 10 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Maximum operating voltage on the HV side, kV | 7,2; 12 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Rated voltage on the low voltage side (LV), kV | 0,23; 0,4; 0,69 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Rated current of the main circuits on the HV side (6/10 kV), A | 2,4/1,4; 3,9/2,3; 6,1/3,6; 9,6/5,7 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Rated current of the main circuits on the LV side, A | 36,1; 57,7; 91; 144,5 | 15,4/9; 4,1/14,5; 38,1/23; 60,7/36,4; 96,4/57,8; 120,4/72,6; 154,1/92,5; 192,7/115,6; 240,8/144,5 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Electrodynamic resistance current on the HV side, kA | 16 | 231; 361; 578; 910; 1445; 1806; 2312; 2890; 3612 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Thermal withstand current for 1 s on the HV side, kA | 6,3 | 32 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Electrodynamic resistance current on the LV side, kA | 8 | 12,5 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Thermal withstand current for 1 s on the LV side, kA | 3,2 | 41 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| AC frequency of main circuits, Hz | 50±1.25 | 16 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| AC frequency of auxiliary circuits, Hz | 50±1.25 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Insulation level according to GOST 1516.3: With dry transformer With oil transformer TMG |
Lightweight Normal level "b" |
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The normal operation of the KTPN is due to the organization of installation work prescribed by special standards. The manufacturer has the opportunity to deliver the device to the place of operation in blocks or fully assembled. The assembly diagram is located on the front side.
KTPM - mast
KTP substation connection diagrams are radial or main. Radial, switched on according to the scheme block - power lines - electric transformer, are connected tightly. At the main line, an UVN shield is additionally installed. Connection to one line of several KTS is possible with their power of 1000-1200 kVA.
|
Parameter name |
Meaning |
|
Power transformer power. kVA |
25; 40; 63; 100; 160; 250; 400; 630; 1000; 1250; 1600 |
|
Rated voltage on the HV side, kV |
6;10;20 |
|
Rated voltage on the LV side, kV | |
|
Rated current of busbars on the HV side, A | |
|
Rated current of busbars on the LV side, A |
1250;1600;2500;3200 |
|
Thermal resistance current of busbars on the HV side, kA/1s |
16;20 |
|
Climatic performance according to GOST 15150 |
U1 |
|
Degree of protection according to GOST 14254 |
IP23 |
|
Seismicity of the construction area, points according to the MSK-64 scale |
Up to 9 |
|
Height above sea level, m |
Up to 3000 |
|
Service life, years |
At least 25 |
Modules 2BKTP can be located both "in series" - joining along the width of the block, and "in parallel" - joining along the length of the block. The last mutual arrangement is the most common.
M - weight with installed equipment, without transformer, S - area around the perimeter,
H int - the inner height of the element.
DESIGN CHARACTERISTICS OF BKTP
|
Element |
Dimensions, mm (WxDxH) |
M, t |
S.m2 |
Нinternal, mm |
|
Dimensions of one TP block |
2460x4640x2700 |
12.7 |
11,5 |
2175 |
|
2460x4640x3050 |
13.5 |
11,5 |
2475 |
|
|
2460x5340x3050 |
13.1 |
2475 |
||
|
Volumetric pit dimensions (underground part of TS) |
2380x4560x885 |
11.0 | ||
|
2380x4560x1500 |
11.0 |
1415 |
||
|
2380x5260x1500 |
12.5 |
1415 |
Serial BKTP equipment.
High voltage switchgear (RU-VN).
Small switchgear type RM -6 with SF6 insulation (manufactured by EZOIS under license Schneider Electric).
At the request of the customer, gas-insulated monoblocks of other types (manufactured by ABB, Siemens ). It is also possible to perform RU-VN on the basis of KSO cells Russian manufacturers. The possibility of using cells of the intended type must be agreed with EZOIS. Available own production equipment 6-10 kVA.
Power transformer.
BKTP of standard execution are completed with power transformers ( 25; 40; 63; 100; 160; 250; 400; 630; 1000; 1250; 1600) with oil-cooled hermetic type (TMG) of various manufacturers. At the request of the customer, cast resin transformers of various types and manufacturers can also be used.
Low voltage switchgear (RU-NN).
BKTP are performed using 0.4 kV switchgears of various designs (racks, panels, cabinets) with switching and protective devices of various types (load breakers, fuses, circuit breakers) and different manufacturers. We have our own production of 0.4 kVA equipment.
System of automatic switch on of a reserve (ATS).
To ensure the required degree of reliability of power supply to consumers, PTS manufactured by the plant can be equipped with devices for automatically switching on backup power.
ATS in standard PTS can be carried out on the HV side (AVR-VN) or on the LV side (AVR-NN). In both variants, the ATS scheme operates in the following emergency situations:
· violation of the phase sequence;
· voltage failure on one, two or three phases (decrease below the permissible level (0.7 * Unom) on any of the phases or on all three).
Scheme with AVR-VN is implemented by equipping the drives of switching devices RU-VN with motor-reducers and contacts for signaling the position of the devices. The switching is controlled by the automation cabinet, which controls the presence of voltage on the LV side.
Scheme with AVR-NN implemented either on contactors or circuit breakers with motor drive. The AVR-NN device is a set of two identical panels (cabinets), each of which is installed in the room of the corresponding section (beam of the circuit) of the PTS. AVR-NN can be built into RU-NN when circuit breakers are used as input and section devices.
Reactive power compensation devices (UKRM).
Depending on the design parameters of the low voltage distribution network operation mode, PTS can be equipped with reactive power compensation devices.
UKRM can be either of the type specified by the project, or selected according to the calculated parameters (power, number of control steps). Structurally, the UKRM can be made as a separate device or be built into the RU-NN.
If there is a UKRM in the substation, the layout of the KTP equipment may differ from the standard one and is developed individually.
Auxiliary system (lighting, heating, equipment heating).
Auxiliary system (SN) provides power for lighting and space heating, ventilation systems, forced heat removal (if any), equipment heating. The auxiliary circuit provides manual or automatic power backup in the presence of two sources (in two-transformer package transformer substations). With different balance sheet belongings of the premises (power supply company and subscriber), the circuit allows for independent switching on of the power of its parts.
Lighting system substations includes equipment for working and emergency lighting (lamps, batteries, automation devices) of the unit, as well as equipment for lighting the pit (in the standard version - sockets for connecting a portable lamp).
Heating KTP blocks are carried out due to the heat generated by the power transformer. For the northern version (or at the request of the customer), electric heaters with a control device (regulator with an air temperature sensor) are installed in the RU-NN and RU-VN rooms. Anti-condensate heating of equipment (compartments of RZiA RU-VN, motor-reducers of drives of switching devices) is provided regardless of the regional version of the transformer substation.
Measurements and accounting of the electric power.
Measurement electrical quantities (current and voltage) in serial KTP are carried out on the low voltage side, at the input to RU-NN. Measuring devices are located in the auxiliary power supply cabinet (YaSN or ShPSN). It is also possible to place measuring devices in RU-NN. At the request of the customer, measuring instruments of various types can be used.
Electricity metering also carried out on the low voltage side. If necessary, electricity accounting can be performed both at the input and at the outgoing RU-NN lines. In addition, RU-NN can be manufactured with preparation for electricity metering on outgoing lines (with wiring for metering circuits, but without installation of current transformers).
Alarm systems.
At the request of the customer, the KTP can be equipped with security and fire alarm systems. They are carried out according to standard designs and include a complete set of equipment (sensors, control equipment and alerts).
Telemechanics system.
The PTS equipment can be made with preparation for equipping with a telemechanics system. For the implementation of telemetry, telesignaling and telecontrol in this case, the equipment of standardized transformer substation is equipped with additional options:
· contacts for signaling the position of switching devices RU-VN and RU-NN;
· contacts for signaling the position of switching devices of the MV system;
· motor-reducers and releases for remote control devices;
· sensors of electrical quantities (current and voltage transformers).
In addition, fire and security alarm systems are designed to transmit signals to the telemechanics system.
At the request of the customer, the list of signals transmitted to the telemechanics system and the functions of remote control of equipment can be expanded in accordance with the provided project.
The telemechanics system can be supplied as a complete set with the PTS, or purchased separately and mounted by the customer independently at the facility.
Sale of BKTP at the best price is carried out through throughout Russia.
In Moscow, you can find out the price to buy BKTP at the head office at:
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