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AC6KV Solid State Soft Starter High Voltage With Perfect Motor Protection

Categories Solid State Soft Starter
Brand Name: Noker
Model Number: NKS300-800-6
Certification: ISO9001
Place of Origin: China
MOQ: 1 set
Price: To be discussed later
Supply Ability: 300 set per month
Delivery Time: 10-15 work days
Packaging Details: Wooden Packing
Payment Terms: L/C, T/T, Western Union
Material: Aluminum Zinc Plate
Size: Can Be Combined With KYN28 Switchgear
Maintenance: convenient
Reliability: All circuit boards undergo strict aging test
Protection: Perfect motor protection
Incoming Breaker: Include incoming breaker
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AC6KV Solid State Soft Starter High Voltage With Perfect Motor Protection

AC6KV within ABB incoming line breaker 800KW Can Be Combined With KYN28 Switchgear Electric Motor Soft Starter


AC6KV within ABB incoming line breaker 800KW Can Be Combined With KYN28 Switchgear Electric Motor Soft Starter is a high voltage motor soft starter designed with up-to date concept,and mainly applicable to the control of and protection for the starting and stopping of squirrel-cage type asynchronous ans synchronous motors.The starter is composed of several thyristors in series-parallel,and it can meet different current and voltage requirements.

The product is widely used in electric industry with rated voltage 3000 to 10000V,building materials chemical industry,metallurgy,steel and paper-making industries etc.,and can perform well if used together with various kinds of electromechanical devices including water pumps,fans,compressors,crashers,agitators and conveyer belt etc.,It is the ideal device for starting and protecting high voltage motors.


Technical Indicators


Basic parameters
Type of loadThree-phase squirrel cage asynchronous and synchronous motors
AC voltage3000---10000VAC
Service frequency50HZ/60HZ±2HZ
Phase sequenceAllowed to work with any phase sequence
Composition of major loop(12SCRS,18SCRS,30SCRS depend on model)
Bypass contactorContactor with direct starting capacity
Control powerAC220V±15%
Transient voltage overload protectiondv/dt snubber network
Start frequency1-3 times per hour
Ambient conditionAmbient temperature: -20°C -+50°C
Relative humidity: 5%----95% no condensation
Altitude less than 1500m (derating when altitude is more than 1500m)
Protective functions
Open-phase protectionCut off any phase of primary power supply in the course of starting or operation.
Over-current protection in operationOperational Over-current protection setting: 20~500%Ie
Unbalanced phase current protectionUnbalanced phase current protection: 0~100%
Overload protection10A,10,15,20,25,30,OFF
Underload protectionUnderload protection grade: 0~99%
Action time of underload protection: 0~250S
Start timeoutStart time limit: 0~120S
Over-voltage protectionWhen voltage of primary power supply is 120% higher than rated value, over-voltage protection is enabled.
Under-voltage protectionWhen voltage of primary power supply is 70% lower than rated value, under-voltage protection is enabled.
Phase protectionAllow to work with any phase sequence (through setting parameter)
Ground protectionProtection available when grounding current is higher than set value
Description of communication
ProtocolModbus RTU
Communication interfaceRS485
Network connectionEach can communicate with 31 equipments in network.
FunctionOperation state and programming can be observed through communication interface.
Operating interface
LCD displayLCD display/touch screen display
LanguageChinese and English
Keyboard6 touch membrane keyboard
Meter display
Voltage of primary power supplyDisplay voltage of three-phase primary power supply
Three-phase currentDisplay current of three-phase major loop
Data record
Fault historyRecord recent 15 faults information
History of number of startsRecord number of starts of this soft starter

Model Definition


Features

  1. Free of maintenance:Thyristor is an electric device without contacts. Different from other kinds of products that need frequent maintenance on liquid and parts etc., it turns the mechanical lift into the service life of electronic components, so it needs no maintenance after running for many years.
  2. Easy installation and operation:NKS300 is a complete system for controlling and protecting the starting of motor. It can put into operation only with the power line and motor line connected. The whole system can be tested electrically under low voltage before operating with high voltage.
  3. Backup:The starter comes equipped with a vacuum contactor which can be used to start the motor directly in the inside. If NKS300 fails, the vacuum contactor can be used to start the motor directly to ensure the continuity of the production.
  4. High voltage thyristor is a component of major loop, equipped with voltage balancing protection system and over-voltage protection system.
  5. NKS300 comes equipped with an electromagnetic blocking device for fear of entering the high voltage device in the electrified state.
  6. Advanced optical fiber transmission technique realizes the triggering detection of high voltage thyristor and the isolation between LV control loops.
  7. 32-bit ARM-core microcontroller is used to perform central control which is real-time and high efficient with , high reliability and excellent stability.
  8. LCD/touch screen display system in both Chinese and English with human-friendly operation interface.
  9. RS-485 communication port can be used to communicate with the upper computer or centralized control center.
  10. Aging experiments are made on all circuit boards.

Catalogue


VoltageModelRated Current (A)W (mm)H(mm)L (mm)
3000VNKS300-400-3-E100100023001500
NKS300-630-3-E150
6000VNKS300-420-6-E50100023001500
NKS300-630-6-E75
NKS300-1250-6-E150

10000V

NKS300-420-10-E30100023001500
NKS300-630-10-E45
NKS300-800-10-E60
NKS300-1250-10-E90
NKS300-1500-10-E110
NKS300-1800-10-E130
NKS300-2250-10-E160
NKS300-2500-10-E180
NKS300-2800-10-E200
NKS300-3500-10-E250
NKS300-4000-10-E280
NKS300-7000-10-E500

Application


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