1. Summarize
1.1. DYQ4 series liquid resistor starter (for short starter as follow) is a new starter prepared for improving the starting property of high voltage squirrel-cage alternating current asynchronously motor. It can induce the impact which is brought to motor starting current on power system, and improve the start smoothness with equipment by voltage-reduced starting by way of liquid resistance. It can protect the motor avoid harm by over-load, phase failure, short circuit etc.It is the prefect starting production instead of auto-induction voltage-reduced starter.
1.2. Model explanation
2. Working principles:
The device is composed of resistor, high-voltage soft start controller, isolating cabinet, changeover cabinet and star point controller. We supply in full sets. The device can start motor and play a protected action on motor start process, when connect it in motor start circuit.
This resistor is composed of three phase balancing resistor which have negative temperature characteristic, when the current is past through resistor, the temperature of resistor gradually increase and its resistance gradually decrease, then the terminal voltage of motor gradually raise and the start torque gradually increase, so the motor can start smoothly and the start current can be decreased.
3. Application scope:
DYQ4 series high-voltage resistance soft starter is suitable for large and medium high-voltage squirrel-cage asynchronous motor or asynchronously-started synchronous motor, to voltage-reduced starting. The motor which start by this device have soft start characters like withlow and constant starting current, torque increased gradually etc. In start process, without current and mechanical shock, as well as have little impact on power system, and without electromagnetic interference. It is the prefect production instead of starting reactor auto-induction voltage-reduced starter. And compare with high-voltage inverter soft starter, DYQ4 have many evident advantages: simple operation, withoutmaintenance and no pollution of harmonic wave etc.
4. Advantage:
4.1. constant current, soft start: the starting current is 2.5-3.5 times as motor rated running current, avoid generating more heat while motor starting, can reduce the demand of transformer capacity with motor heavy load start, reduce no-recurring investment
4.2. The wave of the power system voltage and load cant influence the start process, it can start successfully at one time.
4.3. smooth starting, without shock to machinery, can prolong the service life about 30% of machinery and motor.
4.4. have large thermal capacity, and the continual starting attempt can reach 3-5 times
4.5. have little impact on power system, have small voltage drop during starting
4.6. have high power factor during starting
4.7. without harmonic wave pollution
4.8.start with static changeable resistor,safety and reliability
4.9. simple operation, maintenance free
DYQ4 with standard design, have the advantage of low and constant starting current , have small voltage drop and big power factor during starting, without pollution of harmonic wave and simple, simple, safety and reliability etc.
5. Technical parameters
Model Motor powerKW Rated voltageKV Rated start
currentA style
DYQ4-630 500-630 3 6,10 Integrated
style
DYQ4-1000 800-1000 3,6,10
DYQ4-1250 1000-1250 3,6,10
DYQ4-1600 1250-1600 3,6,10
DYQ4-2000 1600-2000 3,6,10.
Split style
DYQ4-2500 2000-2500 3,6,10
DYQ4-3200 2500-3200 3,6,10
DYQ4-4000 3200-4000 3,6,10
DYQ4-5000 4000-5000 3,6,10
DYQ4-6000 5000-6000 3,6,10
DYQ4-8000 6000-8000 3,6,10
DYQ4-12000 8000-12000 3,6,10
DYQ4-15000 12000-15000 3,6,10
DYQ4-18000 15000-18000 3,6,10
6. Working condition
(1). The power source must use three-phase four-wire system of 380/220V/20A, and the wave of voltage mustnt exceed ¡¾15% of rated voltage.
(2). temperature: from -5celsius degree to 60 celsius degree (the average temperatureless or equal55celsius degree within 24h)
(3). relative humidityless or equal90%
(4). elevationless or equal2000m
(5). The installed site mustnt have obvious impact of vibration and the gradient of uprightness mustnt exceed 5
(6). conducting dust and corroding air are not allowed
(7). without threaten by fire and explosion
PS: A heater is needed when the temperature less than -5 celsius degree in a long period, this situation should be marked up when you order.
If the elevation exceeds 2000m, please let us know when you order.
7. Outline size
The starter has a cabinet framework, protection level is IP20. The outline size of unitary structure devices are as follow table
Model Outline size mm Installation size mm
A B C E F ©ªd
DYQ4-630 1400 1200 2300 1240 1040 16
DYQ4-1000 1630 1230 2200 1540 1140 16
DYQ4-1250 1800 1230 2300 1640 1040 16
DYQ4-1600 1800 1230 2300 1640 1040 16
DYQ4-2000 1830 1230 2300 1840 1040 16
DYQ4-2500 2030 1230 2300 1840 1040 16
DYQ4-3200 2730 1230 2300 1840 1040 16
DYQ4-4000 2730 1230 2300 3400 1040 18
DYQ4-5000 2730 1230 2300 3400 1040 18
DYQ4-6000 3900 1600 2300 3400 1240 18
DYQ4-8000 4200 1600 2500 3400 1440 18
DYQ4-12000 4800 1800 2500 4600 1640 18
DYQ4-15000 5100 2000 2500 4900 1840 18
DYQ4-18000 5100 2000 2500 4900 1840 18
8. Transit and hoisting
8.1. According the customers demand, the pack can use simple packing, common packing and exported packing
8.2. Lie down the resistor during transit is forbidden, because it can damage the driving medium and insulated box (the hoisting method please according to picture 1).
8.3. The collision must be avoided when hoisting the single cabinet, and the hoisting must according the storage and transportation mark
8.4. Check the condition of packing before opening, if it was damaged seriously, please negotiate with traffic company or contact with us.
8.5. the steel wire should be used to hook in the diagonal rings when lifting. picture 2
8.6. The gradient must exceed 70o during hoisting.
9. Installation condition
9.1. The liquid resistor should be installed on the cement platform in which the water can easily drain
9.2. A horizontal ground is needed for installing, and the cabinet must perpendicular to it.
9.3. The liquid resistor should be installed right above the cable channel, and steel channel base must be matched with the resistor.
9.4. 3,2.5+1,1.5mm2 cable is used for control power supply, and connect it from A,B,C,N of terminal board X1 to starter, then according to the drawing, connect the liquid starter and control cabinet, and the interlock control wires between DCS systems or other central control systems
9.5 connect the green and yellow grounding lines to ground terminal.
10. Use and maintenance:
10.1. Check the condition of resistor before each start
10.2. Test the insulation resistance between ground regularly, the test result must less than 500M¥Ø using tramegger with the range of 1000V
10.3. Add water for the resistor regularly.
11. Ordering instruction:
11.1. the motors model, power, voltage, current, locked-rotor current, rotation rate, the times of start torque, the maximum times of start torque, the kind of motor and load GD2, the minimum capacity of short circuit for generatrix, the variation curve of load resisting moment, the name of matching equipment and the demand of duty type
11.2. the main circuits plan of high voltage starting for the using motor,the arrangement diagram of cabinet combination, and the layout chart of power distribution room
11.3. the surface color of cabinet
11.4. If the installation site has a special geographical condition like sea level elevation exceed 2000m, the environment temperature often blow 0celsius degree, coastal area and salt spray area, please let us know the situation in advance.
11.5. If you have special demand, please contact with us (one starter control two or more electromotor).
1500*1350*2000mm
1550*1460*2650mm.
soft starter is one of industry's most featured digital soft starters. It is designed to soft start and stop standard AC induction motors from 5.5kW to 850kW with a maximum voltage rating of 500VAC, designed in accordance with IEC, UL&CSA standards and conforming with CE, EMC and LV directives. Key Features Voltage ratings for 3 phase systems up to 500VAC 50/60Hz Output current from 14 to 1290 Amps, in 16 rating sizes for continuous operation from 50 - 120% Maximum applicable motor up to 700kW/400V in Class 10, and up to 600kW/400V in Class 20 Current limiting up to 700% Frequency range 45-65Hz Working ambient temperature 0-55�¦C. ratings derated 1.5%/�¦C above 40�¦C Relative humidity 95% Alfa-numeric programming keypad with status monitoring indication Programming Software tool Global Standards CE, IEC, UL & CSA Brands : Siemens, ABB, INVT, Delta, Danfoss, Mitsubishi, Rockwell, Schnieder, Chint
Brand Name:EMHEATER Model Number:EMA Type:soft starter Frequency:50HZ/60HZ Output Power:0.18KW-560KW Protect Feature:Explosion-proof Phase:Three-phase Certification:CE, ROHS AC Voltage:220V/380V/460 / 480 V Place of Origin:Guangdong, China (Mainland) Efficiency:IE 4 Packaging & DeliveryPackaging Details:carton / wooden case Delivery Detail:2 days Min.Order Quantity:1 Piece/Pieces Supply Ability:100000 Piece/Pieces per Month Port:shenzhen Payment Terms:L/C,T/T,Western Union,MoneyGram,paypal
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