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| Products > Low Voltage Soft Starters > HRVS-DN Medium Voltage soft starter |
| HRVS-DN Medium Voltage soft starter |
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Introduction
Which medium voltage soft starter is considered as the most reliable soft starter in todays' Industrial and Marine markets ? The HRVS-DN is a third generation, digital, Medium Voltage Soft Starter, designed for use with standard MV asynchronous and synchronous motors. This highly sophisticated soft starter ensures smooth, step-less acceleration and deceleration, eliminating high inrush current and damaging mechanical torque on startup and mechanical wear on stopping. The HRVS-DN is available as a stand-alone product or as part of a complete system including Line and/or Bypass Contactors. Additional options for medium voltage soft starter include Load Break Switch, Motor Protection Relay, Digital Multi-meter, etc.
We can customize our medium voltage soft starters to solve all of your inrush and startup problems. To see what we can do for you, become a distributor now and sign up . |
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Advantages at a Glance for the HRVS-DN Medium Voltage Soft Starter
- Eliminates high inrush current and high mechanical torque on startup.
- Soft, stepless acceleration & deceleration.
- Unique starting & stopping characteristics.
- User friendly, straight forward set-up and operation.
- Sophisticated motor protection package.
- Heavy duty design: 50°C ambient temperature.
- Innovative low voltage test mode - full function-testing with a small L.V motor, using LV mains.
- Advanced Electronic Potential Transformer utilizing Patent Pending "wireless" fiber-optic controlled firing system.
- Each starter is tested for Partial Discharge (corona) to ensure long term reliability.
- Power factor capacitors can be connected directly to the upstream contactor.
- IP30-standard, higher protection by special order.
- Two optional methods of delivery: Chassis type for self assembly or Complete system
- RS485 Communication with MODBUS, MODBUS/TCP, PROFIBUS or Device-Net protocols (others available on request)
- Wide 45-65Hz Auto-tracking frequency range realized by special software with unique hardware arrangement.
(designed for Marine, Offshore and Generators operating under continuous frequency fluctuation)
- Torque and current starting and stopping characteristics.
- Pump control software.
- Analog output option.
- Motor Insulation Protection option (with programmable alarm and trip levels via seperate additional output).
Medium Voltage Soft Starters Range: 2300-7200V, 30-3000A
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Medium Voltage Soft Starters Range: 10000-13800V, 30-3000A
Medium Voltage Soft Starters Range: 13800-15000V, 30-3000A
Approvals of our products and Medium Voltage Soft Starters
Some of the approval bureau's we work with :
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as well as : BV, RINA, Gost-R and others.
Starting & Stopping
- Soft start and soft stop
- Current limit
- Torque & Current Control ramps
- Pump Control characteristics
- Pulse (kick) start
- Tacho/encoder feedback (option)
- Dual Adjust - 2 start/stop characteristics for varying loads, two speed motors, etc.
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Set-up & Supervision of a Medium Voltage Soft Starter
- Illuminated LCD with 2 lines, 16 characters each.
- Selectable languages: English, German, French or Spanish.
- The LCD displays motor current, fault description as well as statistical data.
- Easy set-up using six soft-touch keys to change preprogrammed default parameters.
- Eight LEDs for a quick status display:
- Control voltage On & Self Test OK
- Motor soft starting
- Motor running
- Motor soft stopping
- Motor stopped
- Test Mode Activated
- Dual Adjust mode
- Fault
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Statistics
- Last Starting Period
- Last Start Maximum Current
- Total Run Time
- Number of Starts
- Last Trip
- Trip Current
- Total Number of Trips
- Historical Trip Event Recorder (10 Event conditions)
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Control Inputs & Outputs for a Medium Voltage Soft Starter
- Control voltage: 110-120, 220-240VAC / 50-60Hz or 110 - 220VDC to be specified at time of order.
- Separate inputs for Start, Stop (Emergency) and Soft Stop.
- Two programmable External fault inputs - will stop the motor 2 sec. after the contact closes
- Aux. Contacts - three C/O relays, 8A, 250V, 2000VA (four C/O relays when Insulation option is used) :
1) Immediate Relay - changes position upon start signal, with adjustable On & Off delays.
Returns to original position upon Voltage Outage, Fault, Stop signal and Soft stop signal.
at the end of soft stopping process. It can also be configured as a "Shear-pin Alarm" contact.
2) End of Acceleration Relay - operates upon completion of starting process, with adjustable
On delay. Returns to original position upon Voltage outage, Fault, Stop and Soft Stop signals.
3) Fault Relay - can be programmed as:
Fault - changes position upon Fault, returns to original position upon Reset.
Fault-Fail-Safe - changes position upon control voltage connection, returns upon fault.
- 4) Insulation Alarm relay - changes position upon insulation detection at a pre-programmed level.
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Typical Applications for a Medium Voltage Soft Starter
- Fans and centrifuges
- Conveyors and monorail systems
- Pumps, Compressors and Chillers
- Starting large motors from weak power supply
(diesel generators, long supply lines, etc.)
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Marine & Offshore Applications for a Medium Voltage Soft Starter
- Thrusters
- Cargo Pumps (LNG, LPG, etc.)
- Water & Ballast pumps
- Refrigeration compressors
- Hydraulic pumps & power packs
- Main Propulsion (Variable Pitch Propellers)
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Northern Swan, soft starting 8 cargo pumps and 2 compressors.
Courtesy: Woodside | 
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Comprehensive Motor & Starter Protection
with Occurrence status table |
Active During |
| Start
| Run
| Stop
| Soft Stop |
| Too many starts & Start Inhibit Time |
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| Electronic Overload with selectable curves |
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| Shear Pin (Jam) |
Starter Protection - trip function at 850% FLC in less than 1 cycle |
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| Motor Protection - trip function |
During Start-factory set at 850% FLA in less than 1 cycle |
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During Run-adjustment 200-850% FLA with adjustable delay |
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| Programmable setting |
Starter Protection - trip function at 850% FLC |
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Motor Protection - Alarm & Trip functions
On fault "Immediate Relay" acts as alarm w/adjustable delay.
Trip will not occur if fault is cleared within the time delay. |
During Start - preset at 850% FLA with adjustable delay |
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During Run - prog. 200-850% FLA with adjustable delay |
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| Under current |
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| Unbalance Current |
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| Ground Fault Current |
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| Phase loss |
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| Phase sequence |
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| Under voltage. Time delay is overridden in a "No-Volt" case |
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| Over voltage with adjustable time delay |
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| Under / Over Frequency when range exceeds "Auto Tracking" |
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| Long start time (Stall protection) |
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| Shorted SCR & Wrong connection (Load Loss) |
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| External fault 1 & 2 |
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| SCR protection by Metal Oxide Varistors (MOV) |
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| Starter over-temperature |
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Starter internal test Passed
When supply voltage is connected and after the "On" LED is lit. |
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| Power ON & NO Start signal |
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| By-Pass contactor Open |
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Scope of supply
Chassis type or Cabinet (IP 30-67) or NEMA, with L.V. & M.V. segregated compartments or as Metal-Clad.
Single or Multi-Motor Versions.
Single : One Soft-Starter and One Motor
Multi : One Soft-Starter and Two to Four Motors
- HRVS-DN M.V. soft starter
- Line & Bypass Vacuum Contactors
- Low voltage control system
Options for a Medium Voltage Soft Starter · Insulation Alarm - where motor insulation is continuously checked. Alarm and Trip levels are programmable
· Communication: RS 485 with MODBUS, MODBUS-TCP, PROFIBUS or Device-Net
· Analogue Output of motor current
(field programmable 0-10VDC, 0/4-20mA or inverse)
· Motor Protection Relay MPS 3000 with up to 10 temperature inputs (Thermistors / RTDs)
consult factory for further details
· Main Isolator including handle, Motor Protection type main fuses (with or without blown fuse indicator) etc (Incoming Cabinet containing all the options)
· Digital Power, Voltage and Current Meter DPM-10, for continuous parameter display.
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|  Medium Voltage Soft Starters Handbook. Medium Voltage versatility in one small package.
Medium Voltage Soft Starter Handbook. Medium Voltage versatility in one package.
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