KYN28A-12 is the switchgear apply to the single busbar power system and single busbar sectionalized power system with three-phase AC 50Hz,7.2~12kV.It can be used for receiving & distributing electric power of the transmission and distribution control. The withdrawable part of the switchgear can be equipped with CKVB vacuum circuit breaker, vacuum contactor and other components.
It used for reception and distribution of electricity transmission and distribution control. It can provide satisfied technological solution in various different cases according to cliens requirements.
1.Performs every type of service including power injection, measurement, ground testing, polarity checks, continuity testing and components activation.
2.Easy to read AV0 meter allows you to read voltage, current and resistance at the fingertip.
3.With a flip of the power switch, you have an instant hot/ground lead for powering up electrical components like cooling fans, relays, etc.
4.Simultaneously uses the hot lead and the found lead to activate components right in your hand.
5.Instantly identifies positive, negative and open circuits.
6.Circuit breaker protected.
7.Bulit-in flashlight enables you to work in the dark.
8.Audio tone indicator allows for no-look menu scrolling once user are familiar with menu tone assignment.
9.20ft(extendable)cable provides excellent accessibility to test along the vehicle.
10.Extremely easy to use and highly reliable.
Agasthya 2013 Series Dual Pass Transmissometer
Dust Monitor BI 7000
Path Length 1 20 m flange to flange separation
Measuring Range 0 -1000 mg/m3 user selectable
Units of measurement mg/m3, mg/Nm3, % Opacity
Accuracy 1% relative to the maximum range
Resolution 1mg/m3
Drift with Temperature 1% over any 20C in the operating range
Operating Wavelength510 540 nm Green LED
Stack Temperature 300 C
Power Supply 110 230 VAC
Air Supply 5 10 m3/hr Flow & 500 mbar Pressure. Must exceed maximum stack pressure.
Air Inlet Connection 1 BSP threaded
Output 4 20 mA Analog output
Digital Interface RS 485, MODBUS protocol
Mounting Wall Electronic Unit
Enclosure Rating IP 65
Tx & Rx Junction Box Rating IP 65
Cable 2 core screened cable of 0.5mm2,8 meters between Tx & Rx
6 core screened cable of 0.5mm2,25 meters between Rx & Electronic Unit
Ambient Temperature -20 to 50 C
Operating Humidity 5 95%
Direct measurement in exhaust flue gas flow In situ
Dual Pass for accurate reading
Unit programmable in mg/m3, mg/Nm3, % Opacity
RS 485, MODBUS protocol
Rugged design with no moving parts so low maintenance
Green LED source for long lifetime stability
IP65 rating Enclosure
The best price performance on the market designed with user requirements foremost in mind
General-purpose, flexible polyolefin heat shrink tubing suited for commercial applications where cost is a consideration. Insulation, wire bundling, and mechanical protection are all common applications. Buy Heat shrinkable tubes (Shrink Ratio 2:1) MINI Reels order online in that is used to insulate wires. Order best Heat Shrink Tubing
Features: Suitable for clean air. Resistant to high pressure and high temperature.
Sensor type: Thermal mass flow sensor
Measuring range: 0 ... 90 m/s
Output: 0 ... 20 mA / 4 ... 20 mA / 0 ... 1 V / 0 ... 5 V / 0 ... 10 V
Accuracy: 1.5% F.S.
IP rating: IP67
GCK low-voltage drawout switchgear is widely used in power plants, metallurgical rolling, petrochemical, light textile, ports, buildings, hotels and other places as AC three-phase four-wire or five-wire system, voltage 380V, 660V, frequency 50Hz, rated current 5000A and below power supply system for distribution and motor centralized control.
GCK is a comprehensive type test, and obtained CCC certification, is assembled into an advanced low-voltage switchgear, designed to meet the following standards: national standard GB7251.1-2005 "Low-voltage switchgear"
International standard IEC60439.1-1992 "Low-voltage Switchgear and control equipment"
GCS type low-voltage draw-out switchgear, suitable for power plant, petroleum, chemical, metallurgy, textile, high-rise building and other industries of the power distribution system. In large power plants, petrochemical systems and other high degree of automation, requiring the interface with the computer, as a three-phase AC frequency of 50(60)Hz, rated operating voltage of 400V, 660V, rated current of 5000A and below the power supply system in the distribution, motor centralized control, reactive power compensation of the use of low-voltage complete sets of distribution devices. The device is designed to meet the following criteria: IEC439-1
"Low-voltage Switchgear and Control Equipment" GB7251 "Low-voltage Switchgear"
Product overview
MNS type low-voltage with drawable switchgear (hereinafter referred to as switchgear) is developed by our company with reference to the MNS series low-voltage switchgear of ABB company in Switzerland and after comprehensive improvement, which is currently the most advanced low-voltage with drawable switchgear in China. The products are composed of standardized, serialized modules, and the drawer has a reliable mechanical interlocking device, which makes the user safer and more reliable when using.
Product overview
GGD type AC low-voltage distribution cabinet is suitable for power plants, substations, industrial and mining enterprises and other power users of AC 50Hz, rated working voltage 380V, rated working current 5000A power distribution system, as power, lighting and distribution equipment for energy conversion, distribution and control.
The product has the characteristics of high breaking ability, good dynamic and thermal stability, flexible electrical scheme, convenient combination, strong practicability, novel structure and high protection level. It can be used as the re placement of low-voltage switchgear.
GGD type AC low-voltage distribution cabinet conforms to IEC439 "Low-voltage switchgear and control equipment",GB7251 "low-voltage switchgear" and other standards.
GKG-12/630 Overview of solid insulated switchgear (Miniaturized mining switchgear) :
It is a new type of power distribution equipment which integrates three technologies of external solid seal, insulated bus bar and miniaturization of combined unit. The switch and high-voltage live parts are cast with epoxy resin as a whole, and epoxy resin solid seal is used as the insulation of live body to ground and phase to phase. Solid insulated ring cabinet does not discharge any toxic substances, no gas leakage explosion and internal arc of the hidden danger, with high insulation performance, high overall strength, maintenance-free and so on. According to different configurations, the solid insulated ring network cabinet can realize the functions of breaking load current, breaking short circuit current, manual and automatic switching of dual power input line, current velocity breaking protection, single-phase grounding protection of small current grounding system, and communication.
The structure and principle of solid insulated ring network cabinet:
1.The composition of solid insulated ring network cabinet:
V unit (Circuit breaker unit)
C unit (Load switching unit)
F unit (Combined electrical unit)
Product type, classification and basic parameters
1.Product model and its meaning
2. Basic parameter
Rated voltage: 10kV, 6kV;
Rated current:1250A 1000A 800A 630A 500A 400A 315A 200A 150A 100A 50A; Class of protection: IP43;
Number of short circuit breaking and closing currents: separate 0.3s Combine and separate 180s Combine and separate 5timesï¼?separate14timesï¼?Combine and separate 11 timesï¼?
Rated short-circuit breaking current: 31.5kA (RMS);
Rated short-circuit closing current: 80kA (peak);
Rated short-time withstand current: 31.5kA (effective value);
Rated peak withstand current: 80kA (peak);Rated short circuit duration: 4s;
Rated short circuit breaking times:30times Main protection functions:
1)Short circuit protection
2)Overload protection
3)Zero sequence overcurrent protection
4)Zero sequence overvoltage protection
5)Over and under voltage protection
In addition, it has the functions of fault memory, fault query, self-test and so on.
Technical requirement
1.General requirement
1.1The switchgear shall meet the requirements of this standard and be manufactured according to the drawings and technical documents approved by the designated inspection unit.
1.2In addition to meeting the technical conditions, it should also meet the provisions of GB/T12173-2008 standard.
2.Environmental condition
The switchgear shall work normally under the following conditions:
a)Altitude: 1000m;
b)Ambient temperature: -20 ~40 ;
c) Relative humidity: 95%;
d) In a gas or steam environment without damaging insulation;
3 .Shell
3.1Material
The shell of the switch cabinet is made of 2.5mm thick cold-rolled steel plate.
3.2intensity
The material of the switch cabinet shell conforms to the provisions of GB3836.1-2010 Chapter 8, and shall withstand the impact strength impact test of 1kg/7J.
3.3Class of protection
The protection capacity of the switch cabinet housing should comply with the provisions of GB3836.3-2010 Article 4.9, and the protection capacity should not be less than IP43.
Use and scope of application
GKD type general low-voltage switchgear for mining (hereinafter referred to as switchgear) has obtained mining qualification certificate
and safety standard certification certificate. It is suitable for all kinds of mining areas, no gas, coal dust explosion danger
places and other similar underground industrial production departments such as non-coal mine mountains.
The switchgear is suitable for power plants, factories and mining enterprises and other power users with AC 50HZ,
rated working voltage 660V,380V, rated working current up to 3200A and below
Electric energy conversion and distribution control of power, lighting and distribution equipment.
Reference execution of relevant standards
GB 3636.1-2010 Explosive atmospheres - Part 1: General requirements for equipment
GB 3836.3-2010 Explosive atmospheres - Part 3: Equipment protected by increased safety type "E"
GB14048.1-2012 Low-voltage switchgear and control equipment - Part 1: General
GB 14048.2-2008 Low-voltage switchgear and control equipment - Part 2: Circuit breakers
GB/T 4208â??2008 Enclosure protection Class (IP code)
GB/T12173-2008 General electrical equipment for mining
GB/T156â??2007 Standard voltage
GB/T191â??2008 Pictorial signs for packaging storage and transportation
GB/T2423.4-2008 Electrical and electronic products - Environmental testing - Part 2: Test methods - Test DB: Alternating humid heat (12H+12H cycle)
GB7251.1-2013 Low-voltage switchgear and control equipment - Part 1: General
MT871-2011 Explosion-proof low voltage AC vacuum feed switch for mines
Aq1043-2007 Safety marks for mining products
With the continuous development and progress of society, China's urban power grid has undergone great changes, and most cities have formed or are forming from more power load intensive areas. In the past, the power supply from the substation 12/24kV line (or branch line) to the direct user has been difficult to meet the requirements of urban development. Therefore, a new power supply method is produced by opening and closing the power supply to the user. However, with the intensification of urban densification, some of the original civil type openings and closures have been limited by land and urban planning, so a more advanced and practical outdoor intelligent openings and closures (outdoor ring cabinet) has emerged. This opening and closing house does not need civil construction and occupies less area, the configuration is very flexible and the power supply mode is more reliable, the construction and installation, debugging time is greatly shortened, and the overall cost is reduced.Intelligent opening and closing (outdoor ring network cabinet) is the use of foreign advanced technology, the 12/24kV switchgear, circuit breaker, load switch. Current and voltage backbone, 12kV power supply PT, switching station FTU, RTU, communication control terminal (CCU), 12/24kV metering and automatic meter reading, USP power supply and indicating instrument are installed and adjusted into a movable, sealed and moisture-proof stainless steel box. Thus, the integration and modular assembly of the primary and secondary systems of the urban distribution network are realized, the construction period is shortened, and the reliability of the urban power network operation is greatly improved.
