ZYMV medium and high voltage solid state soft starter

ZYMV series medium and high voltage solid-state soft starters are mainly suitable for the control and protection of the starting and stopping of squirrel-cage asynchronous and synchronous motors. It adopts a high-voltage thyristor series-parallel connection scheme and is based on a 32-bit ARM MCU, which can start and stop the motor smoothly. It has fault protection functions such as overload, phase loss, and operating overcurrent. The use of ZYMV medium and high voltage solid-state soft starters can effectively avoid the harmful impact on the power grid caused by excessive motor starting current, and enable the normal use of high-power motors under limited power grid capacity and extend their service life.

Power range 280kW~15000kW
Voltage level AC 3PH 3.0kV~11kV

Model Description

Features

Technical Parameters

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123w

●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.

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

ZYMV medium and high voltage solid state soft starter