ZRMV series high voltage solid soft starter (hereinafter referred to as 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 and 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.
Main Features of High Voltage Soft Starter
●Various starting methods;
●Starting control: The whole machine is equipped with local, remote (external dry contact), PLC, communication (485 interface, Modbus) start-stop control functions;
●Soft start/direct start has conversion function;
Thyristor protection: RC absorption dynamic and static voltage equalization technology to ensure reliable and safe operation of power devices in series under high voltage;
● strong anti-interference;
●Modular design;
● Communication interface: RS-485 communication interface, embedded with standard MODBUS protocol, easy to configure and connect;
●Analog signal output: 4-20ma signal;
●With 15 fault memory;
●Advanced and perfect start-stop function;
●High reliability:
●High security;
● strong practicality.
Technical characteristics
● 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.
● Easy installation and operation:ZRMV 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.
● Backup:The starter comes equipped with a vacuum contactor which can be used to start the motor directly in the inside. If ZRMV fails, the vacuum contactor can be used to start the motor directly to ensure the continuity of the production.
● High voltage thyristor is a component of major loop, equipped with voltage balancing protection system and over-voltage protection system.
● ZRMV comes equipped with an electromagnetic blocking device for fear of entering the high voltage device in the electrified state.
● Advanced optical fiber transmission technique realizes the triggering detection of high voltage thyristor and the isolation between LV control loops.
● 32-bit ARM-core microcontroller is used to perform central control which is real-time and high efficient with , high reliability and excellent stability.
● LCD/touch screen display system in both Chinese and English with human-friendly operation interface.
● RS-485 communication port can be used to communicate with the upper computer or centralized control center.
● Aging experiments are made on all circuit boards.
Description of model
Soft Starter Outline & Mounting Dimension (Unit:mm)
Voltage Grade |
Specification |
Power (kW) |
Rated Current(A) |
W(mm) |
H(mm) |
L(mm) |
3000V |
ZRMV-400-3 |
400kW |
100 |
1000 |
2300 |
1500 |
ZRMV-630-3 |
630kW |
150 |
||||
ZRMV-1600-3 |
1600kW |
400 |
1300 |
2300 |
1600 |
|
ZRMV-2500-3 |
2500kW |
≥600 |
Reserved |
|||
6000V |
ZRMV-420-6 |
420kW |
50 |
1000 |
2300 |
1500 |
ZRMV-630-6 |
630kW |
75 |
||||
ZRMV-1250-6 |
1250kW |
150 |
||||
ZRMV-1600-6 |
1600kW |
200 |
1300 |
2300 |
1600 |
|
ZRMV-2500-6 |
2500kW |
300 |
||||
ZRMV-3300-6 |
3300kW |
400 |
||||
ZRMV-4150-6 |
4150kW |
500 |
||||
ZRMV-5000-6 |
5000kW |
≥600 |
Reserved |
|||
10000V |
ZRMV-420-10 |
420kW |
30 |
1000 |
2300 |
1500 |
ZRMV-630-10 |
630kW |
45 |
||||
ZRMV-800-10 |
800kW |
60 |
||||
ZRMV-1250-10 |
1250kW |
90 |
||||
ZRMV-1500-10 |
1500kW |
110 |
||||
ZRMV-1800-10 |
1800kW |
130 |
||||
ZRMV-2250-10 |
2250kW |
160 |
||||
ZRMV-2500-10 |
2500kW |
180 |
||||
ZRMV-2800-10 |
2800kW |
200 |
||||
ZRMV-3500-10 |
3500kW |
250 |
||||
ZRMV-4000-10 |
4000kW |
280 |
||||
ZRMV-4500-10 |
4500kW |
320 |
1300 |
2300 |
1600 |
|
ZRMV-5500-10 |
5500kW |
400 |
||||
ZRMV-6000-10 |
6000kW |
430 |
||||
ZRMV-7000-10 |
7000kW |
500 |
||||
ZRMV-8500-10 |
8500kW |
≥600 |
Reserved |
Basic parameters |
|
Type of load |
Three-phase squirrel cage asynchronous and synchronous motors |
AC voltage |
3000---10000VAC |
Service frequency |
50HZ/60HZ±2HZ |
Phase sequence |
ZRMV is allowed to work with any phase sequence (through setting parameter) |
Composition of major loop |
(12SCRS、18SCRS、30SCRS depend on model) |
Bypass contactor |
Contactor with direct starting capacity |
Control power |
AC220V±15% |
Transient voltage overload protection |
dv/dt snubber network |
Start frequency |
1---6 times per hour |
Ambient condition |
Ambient 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 protection |
Cut off any phase of primary power supply in the course of starting or operation. |
Over-current protection in operation |
Operational Over-current protection setting: 20~500%Ie |
Unbalanced phase current protection |
Unbalanced phase current protection: 0~100% |
Overload protection |
Overload protection grade: 5A、10、15、20、25、30 |
Underload protection |
Underload protection grade: 0~99% Action time of underload protection: 0~250S |
Start timeout |
Start time limit: 0~120S |
Over-voltage protection |
When voltage of primary power supply is 120% higher than rated value, over-voltage protection is enabled. |
Under-voltage protection |
When voltage of primary power supply is 70% lower than rated value, under-voltage protection is enabled. |
Phase protection |
Allow to work with any phase sequence (through setting parameter) |
Ground protection |
Protection available when grounding current is higher than set value |
Description of communication |
|
Protocol |
Modbus RTU |
Communication interface |
RS485 |
Network connection |
Each ZRMV can communicate with 30 ZRMV equipments in network. |
Function |
Operation state and programming can be observed through communication interface. |
Operating interface |
|
LCD display |
LCD display/touch screen display |
Language |
Chinese and English |
Keyboard |
6 touch membrane keyboard |
Meter display |
|
Voltage of primary power supply |
Display voltage of three-phase primary power supply |
Three-phase current |
Display current of three-phase major loop |
Data record |
|
Fault history |
Record recent 15 faults information |
History of number of starts |
Record number of starts of this soft starter |
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