product detail
Features
●The cabinet adopts standard KYN28 structure, coated with aluminum zinc plate and metal armor.
●The cabinet should be used together with an incoming cabinet equipped with a vacuum circuit breaker.
●High and low voltage are separated, and the cabinet is composed of three parts: relay instrument room, main circuit connection room, and valve group room.
●The cabinet is mainly composed of bypass vacuum contactors, thyristor components, etc.
●Shell protection grade: IP4X.
Technical Parameters
project | Technical Parameters |
Load type | 3-phase medium and high voltage squirrel cage asynchronous and synchronous motors |
voltage | AC 3.0kV~11kV -7%~+5% |
frequency | 50 Hz /60Hz |
Power range | 280kW~15000kW |
Control power | 3phase 380VAC，220VAC |
signal isolation | Fiber optic loop or magnetic loop |
cooling method | natural cooling |
Main circuit composition | 30 (or 15) thyristors form 3 groups |
phase sequence | The output terminal is allowed to work in any phase sequence and must be wired in positive phase sequence. |
Instantaneous overvoltage protection | dv/dt absorption network |
Overload capacity | Continuous: 120% Overload: 150%/60 seconds |
Programmable output | |
operating instructions | Start/stop, start/soft stop, fault |
Measurement display | Current, voltage, frequency, power, etc. |
Acceleration parameter setting | Programmable ramp: voltage adjustable or current adjustable Starting voltage: 20-100% adjustable Ramp time: adjustable from 1 to 120 seconds Current limit: 100-500% adjustable |
Deceleration parameter setting | Start deceleration voltage: 0-60% Stop voltage: 0-99% Soft stop time: 1-120 seconds adjustable |
Fault display | Phase loss, phase-to-phase unbalance trip, overload, over-temperature, over-current, loss of load, blocked rotor, short circuit |
Data status record | |
broken record | Record the latest 15 fault information |
Instrument detection function | |
Motor load | Percentage of full load current |
Current data | Phase current |
Protection of soft starters | |
temperature | Protection of SCR components, tripping when the temperature exceeds 85°C |
Long startup time protection | Trip if startup time exceeds 120s |
nput phase loss | If any of the 3-phase power supplies is missing, it will fail to start and a fault alarm will occur. |
Starts per hour | The number of starts shall not exceed 6 times per hour, and the time interval shall not be less than 10 minutes. |
serial interface | |
Protocol | Modbus protocol |
Communication Interface | RS-485 |
Internet connection | Each soft starter can communicate with 30 soft starter devices via network |
Internet connection | Operation status and programming can be observed through the communication interface |
Operation interface | |
LCD display | LCD (liquid crystal) display |
button | 6 touch-sensitive membrane buttons |