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锡林浩特SRM16-12 Fully Insulated Inflatable Cabinet
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Product Description
Overview
SRM16-12 fully insulated gas-filled cabinet has obtained the type test report from the National High Voltage Electrical Equipment Test Center and has been listed as a high-tech product in Zhejiang Province. It is widely used in 12KV/24KV power distribution systems and is the preferred switch product for various types of urban and rural user power distribution systems. The switch cabinet is a modular unit mode and can be combined according to different uses: it consists of two major categories: fixed unit combination and expandable unit, which meets the needs of various substations for flexible use of compact switch cabinets.
SRM16-12 fully insulated gas-filled cabinet is a completely sealed system with all live parts and switches enclosed in a stainless steel housing. The entire switch device is not affected by external environmental conditions, thereby ensuring operational reliability and personal safety, and achieving maintenance-free. By selecting an expandable busbar, any combination can be achieved to achieve full modularization. The safe insulation and shielding of the extended busbar ensures high reliability and safety.
SRM16-12 gas-filled switch cabinet can also provide TV-based automation solutions, forming the concept of intelligent switches, and minimizing the workload of on-site installation and commissioning.
The SRM16-12 fully insulated gas-filled cabinet is divided into non-expandable standard configuration and expandable standard configuration. Due to the combination of full modules and half modules and its own expandability, it has extremely special flexibility.
The SRM16-12 fully insulated gas-filled cabinet complies with GB standards. The design life of operation under indoor conditions (40°C) and outdoor conditions (-50°C) exceeds 30 years.
Model meaning
| SRM6 | - | 12 | 口 | 口 | - | 口 |
| Gas insulation | Rated voltage (KV) | G is fixed type K is expandable D is cable branch box solution |
Standard module code | Extension method |
Expansion mode: LT- left top expansion, RT- right top expansion, LS- left side expansion, RS- side expansion, LTRT- left and right top expansion, LTRS- left top expansion and right side expansion, RTLS- right top and left side expansion
Conditions of use
• Ambient temperature: Maximum temperature: +40°C, minimum temperature -30°C;
• Wind speed: equivalent to 34m/s (not more than 700Pa);
• Humidity: daily average relative humidity is not more than 95%, monthly average relative humidity is not more than 95%;
• Shockproof: horizontal acceleration is not more than 0.4m/s?, vertical acceleration is not more than 0.15m/s? Installation site inclination: not more than 3°;
• Installation environment: the surrounding air is not obviously polluted by corrosive, flammable gases, water vapor, etc., and there is no severe vibration at the installation site.
Performance indicators
| • SF6 gas pressure • Absolute pressure at 20°C is 1.4 bar • Annual gas leakage rate is 0.2%. /year • Protection grade IP67 • Gas chamber stainless steel thickness 3.0 mm |
• Busbar • Busbar in switch cabinet 320mm2, 40x8mm2 • Switchgear grounding bus75mm2, 25x3mm2 • Color • RAL7012 • RAL7035 |
• Normal operating environment conditions |
• Meet the standards GB/T11022 GB3906 GB1985 GB16926 GB38041 GB1984 GB3309 IEC60056 IEC60129 IEC60256 IEC60298 IEC60420 IEC60694 |
Main technical parameters
| project | Unit | C Module | F Module | V Module | |
| Load switch | Combined electrical appliances | Vacuum circuit breaker | Disconnector/earthing switch | ||
| Rated voltage | KV | 12 | 12 | 12 | 12 |
| Rated frequency | Hz | 50 | 50 | 50 | 50 |
| Power frequency withstand voltage (phase/break) | KV | 42/48 | 42/48 | 42/48 | 42/48 |
| Lightning impulse withstand voltage | KV | 75/85 | 75/85 | 75/85 | 75/85 |
| Rated current | A | 630 | 125(expected） | ||
| Breaking capacity | |||||
| Rated closed-loop breaking current | A | 630 | |||
| Rated cable charging breaking current | A | 10 | |||
| Rated short-circuit closing current (peak value) | A | 50 | 80 | ||
| Rated peak withstand current | kA | 50 | |||
| Rated short-time withstand current | kA/S | 20/4 | |||
| Rated short-circuit breaking current | kA | 31.5 | 25 | ||
| Rated transfer current | A | 1700 | |||
| Maximum current of the fuse | A | - | 125 | ||
| Circuit resistance | µΩ | ≤300 | ≤600 | ||
| Mechanical life | 次 | 5000 | 3000 | 5000 | 5000 |
Main features
SRM16-12 fully insulated gas-filled cabinet uses SF6 gas as arc extinguishing and insulating medium.
The switch cabinet is a fully sealed and fully insulated structure; the busbar, switch and live parts are completely enclosed in a stainless steel shell. The cavity is filled with (0.045MPa) SF6 gas, and the protection level reaches IP67; the entire switch device
is completely unaffected by external environmental conditions, and the normal operation of the switch can be guaranteed even in extreme conditions such as short-term water immersion, and the product is maintenance-free for life.
The switch cabinet has a complete "five-proof" interlocking device to completely eliminate personnel and equipment operation failures that may be caused by human misoperation.
All switch cabinets have reliable safety pressure relief channels to ensure the personal safety of operators even in extreme conditions.
Switch cabinets are divided into two categories: fixed unit combination and expandable unit combination.
Switch cabinets usually have front inlet and outlet lines, and can also realize side outlet or side expansion according to different installation positions.
The cabinet size is easy to install and can be suitable for places with small space and poor environmental conditions.
The switch cabinet can be equipped with electric, remote control and monitoring devices according to the different needs of users.
Distribution network automation application system solution diagram
Extension of distribution network automation:
Extension of distribution network automation (DTU. Watchdog)
SRM16-12/24 series outdoor ring network cabinets can be easily upgraded to intelligent ring network cabinets with automation functions. Equipped with distribution network automation terminal devices with "four remote" functions, it can realize the intelligent application of ring network switch equipment. Using communication (optical fiber, GPRS The ring main unit can be connected to the automation master station system to realize the automation function of the distribution system.
Through the distribution automation system, the operation and maintenance personnel can realize the following functions without leaving home:
From the control master station or substation, the switch unit of each ring main unit can be remotely opened, closed or closed and locked, which can also be completed locally;
From the control master station or substation, the contact position status, fuse status, circuit breaker fault protection status, grounding switch status and other information of each switch can be obtained;
From the control master station or substation, the electrical parameters of each circuit can be obtained, such as voltage, current, zero-sequence voltage, zero-sequence current, power, power factor, frequency, etc.;
From the control master station or substation, the parameters of each distribution automation terminal can be optimized and configured:
System- - Clock of the master station or substation and each distribution automation terminal system:
Get line fault information or abnormal information of each distribution automation terminal, and combine with the master station or substation software to realize automatic fault location, fault isolation, automatic power supply restoration in non-fault areas and network reorganization, thereby greatly
shortening the area and time of power outages, reducing the losses caused by faults, and improving the power supply reliability of the power system. In addition, it is also convenient to monitor and allocate loads, which is conducive to the rational use of the network.
The watchdog controller can be configured to switch on and off faults inside and outside the boundary to improve the reliability of the power grid.
In/out line protection
Use vacuum switch 1 vacuum circuit breaker module
The transformer or line protection is a vacuum switch 1 vacuum circuit breaker with a protection relay and a current transformer. When a vacuum switch/vacuum circuit breaker is selected as protection, use our company's HBE550/500 series or
other domestic integrated protection devices.
◆HBE550/500 microcomputer integrated protection device
<Voltage range: DC (18-265V) or AC (80-265V)
✧ Equipped with LMZK type protection CT: secondary current 5A
✧ Digital display of set value current measurement value and recorded fault data
✧ Set value panel button or computer setting
✧ Passive signal nodes can be provided for each section of protection
✧ Continuous self-test and alarm output of internal faults (software and hardware)
◆Low set value overcurrent section 1 >
✧ Time-limited action current 0.5-5.01n action time 0.05-300s
✧ Inverse time action current 0.5-2.5InIDMT inverse time action mode
◆High set value overcurrent section I >
✧ Action current 0.5-40In action time 0.04-300s
◆Low set value zero sequence overcurrent section 1o >
✧ Time-limited action current 0.1-0.8In action time 0.5-300s
✧ Inverse time action current 0.1-0.8InIDMT inverse time action mode
◆High set value zero sequence overcurrent section lo》
✧ Action current 0.1-101n Action time 0.05-300s
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Cangzhou Huarui Transformer Co., Ltd.
Address: Xinxing Town Industrial Zone, Qing County, Cangzhou, Hebei
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