400-101-5915 CN
400-101-5915 CN
Product
ZYRQ MV soft starter

ZYRQ MV soft starter / ZYRQ

Function : Medium voltage soft starter is a Important equipment for motor start stop control and protection, suitable for power systems with AC 3-phase voltage ≤ 11kV, frequency 50/60Hz, and short-circuit current ≤ 50kA. It can select the appropriate starting curve according to different motor parameters, thereby reducing the starting current, lowering the line voltage drop, reducing the electrical and mechanical impact of equipment, and providing protection for the line and equipment. The soft stop function can also reduce the impact of fluid on pipelines and valves.
Features :

Have a full set of type test reports meeting GB/T 3906-2020 and IEC 62271-200, and the type approval certificate of LR & CCS Classification Society.

Multiple starting mode options to meet the starting requirements of various motors and power systems;

The safe and reliable mechanical interlock function ensures the safety of equipment and personnel.

The highly integrated product integrates isolation switches, HV fuses, power components, and bypass contactors together, thereby minimizing system configuration and making the equipment compact;

Selection descriptionModel namingTechnical indexProduct compositionProduct functions
Description: Rated insulation voltage is 7.2kV, and the starting mode is current ramp.
Rated voltage: 3P AC 3kV、AC 6.6kV、AC11kV
Rated frequency: 50、60Hz
Rated current: 306A(AC3~6.6kV)、136A(AC11kV)
Degree of protection: IP44
Rated short circuit breaking current 50kA(Fuse)
Rated short circuit making current 130kA(Fuse)

IAC AFLR 40kA 1s

Medium-voltage soft starters are divided into high-voltage and low-voltage compartments, which are separated
by a metal partition. There is an arc discharge cover plate on the top of the high-voltage compartment. When
an arc fault short circuit occurs, the arc discharge cover plate automatically opens to relieve pressure. High-voltage
components are installed in the high-voltage compartment and mainly consist of disconnecting switches, HV fuses,
earthing switches, power components, bypass contactors, busbars, voltage and current transformers. Low-voltage
components are installed in the low-voltage compartment and mainly consist of protection displays, protection
controllers, buttons, indicator lights, intermediate relays, switching power supplies, and miniature circuit breakers.
Protection functions: It has functions such as overload, phase loss, phase sequence,
three-phase unbalance, over/under voltage, short circuit, power module overheating,
ground fault, and soft stop.
Measurement and display function: The LCD panel displays three-phase current,
three-phase voltage, power component temperature, fault information, etc.
Control functions: The operation methods can be local, beside the machine, remote,
and remote signaling; the starting methods include soft start, direct start, soft stop,
and free stop options; the control modes include snap start, voltage ramp start, and
current - limiting start.
Safety interlock function: The grounding switch cannot be closed when the high
voltage is live.