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ZRMV High Voltage Soft Starter

ZRMV High Voltage Soft Starter
ZRMV High Voltage Soft Starter
ZRMV High Voltage Soft Starter
ZRMV High Voltage Soft Starter
ZRMV High Voltage Soft Starter
ZRMV High Voltage Soft Starter
ZRMV High Voltage Soft Starter

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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