Liquid Resistor Starters

The DYQ3 series is used a special liquid resistor to be connected in series to the rotor circuit of large and medium slip ring motor, the liquid resistor get to work when the motor starting and it can automatic, stepless and continuous removal during the preset time, then the motor can start smoothly under ideal starting current condition. Eventually the motor can accelerate balanced. This plays an important role in protection of motor, electric equipment£¬power system and saving electricity. As well as the well-designed of system starting, stop, error protection, liaison and display, making the liquid resistor starter have high degree of automation, small starting current (less than 1.3 times for rated current in general), can start successfully when power system have low voltage, and reducing the capacity of transformer remarkably. So DYQ3 series liquid resistor starter is the most ideal starting equipment for heavy load device such as: ball crusher, hoister, compressor, blower and water pump etc.

The OPGW Hardware Fittings are instrument used for surge protection of communication and transmission lines. It replaces the earlier PLCC (using waves as the transport medium) with an optical signal which is faster and distortion free.
a professional manufacturer of OPGW & ADSS cable prefabricated parts with many years of experience. With a factory area of 26,593 square meters, we can produce and transport about 1,000,000 PCS of prefabricated parts (OPGW & ADSS) per year. We have world class certificates such as ISO 9001:2015 certification and are trusted by several companies. More than 15 professional R&D engineers and timely technical support ensure to provide high quality and competitively priced solutions to make customers more profitable in this industry.

ADSS fittings are used to secure ADSS cables to utility poles. The integration test between the fitting and the cable is approved according to the NESC Heavy Duty standard. The correct ADSS cable fitting is determined by the outside diameter of the cable and the length of the span to be covered.

What is an ADSS cable
ADSS (All Dielectric Self-Supporting) cables are ideal for installation in power distribution and transmission environments, even when a live installation is required. As the name implies, no supports or slings are required, so a single installation is all that is needed, making ADSS an economical and simple way to.

About us
design and construction makes ADSS mounting and threading accessories inherently rugged and rigid, and compliant with various international and TEC codes. These fittings are available in a variety of designs to meet the requirements of different pole/tower spans and different types of pole/tower members.

Model: Efficient 75kw to 10000kw AC wound rotor motor soft starter
1) direct starting problem
motor will create big current shake if start directly ( 5-8 times more than rated current), it makes big strike for electic grid and loaded equipment, heavily reduce motor and equipment service life,Sometimes motor burnt .so,stepless smooth start and stop is neccessory

2) intelligent WYQ6 main function
1:smooth start, without shook to equipment, extend the using life,save equipment maintain cost
2:reduce start current, reduce temperature increasing of motor, largely extend the long of motor,
3:Full protect motor and loaded equipment

3)range of application:
suitable to heavy load soft starting of wound rotor asynchronous motor,
especially in industrial or mines with unstable or lower voltage

4)unique feature:
1: low starting current: the starting current is<= 1.3Ie(A)
2: simple structure, easy for install and maintenance
3:it can start under a lower voltage, for example, start in 5.5KV when rated voltage 6KV
4: Good uniformity, applicable to coiling motor soft s tarting under any load situation, specially for heavy load starting
5: Multiple protection function like starting overtime, over stroke, over temperature,etc
6: can started continuously for 5-10 times
7: adpts worm gear and worm lifter as the transformation tool, which is stable,reliable and noiseless

5)operating principle:
For wound rotor asynchronous motor, when the grid voltage and frequency are invariant,
the connection of the starting resistor to the rotor loop will reduce the starting current and get a larger starting torque.

putting special compound electrolyte into the rotor loop of the controlled winding motor as the liquid resistance, when the stator receive the signal of the motor starting, it will change the location of the electrolyte automatically, so as to reduce the resistance value gradually. when the resistance reached the minimum level, the sensor closed and motor rotor star connected directly, then the equipment start smoothly with a low current, large torque.
suitable motor AC wound rotor motor
Rated voltage 380V~ 10KV
Rated power 75KW ~11000KW
Start current less than motor rated current 1.5 times at least
continous start time 5~10 times
cabinet size mm To demand
working condition ( if special, pls clarify) temperature -40C ~ + 50C
air humidity <=90%
Altitdue normal 2000m


wooden case.

Features:

The main circuit adopts vacuum contactor, no arc, long service life and high reliability;
Adopting JDB digital protector, it has the functions of overload, short circuit, breaking phase, leakage of main circuit and blocking.
It can be equipped with liquid level controller as a special switch for water level control.

Scope of application:

This series of electromagnetic starter is suitable for the ring of explosive mixture gas such as methane and coal dust in the coal mine and its surrounding medium in the environment. Mainly used for direct start or stop AC 50Hz, rated voltage up to 1140V, rated current to 200A mining
Flameproof three-phase asynchronous motor. For local control, remote control, joint control and sequence control, the irreversible starter is available commutation is performed at the stop time; reversible starter can perform frequent positive and reverse operation on the controlled motor.

Technicial parameter:

Rated voltage, alternating, 3-phase frequency (50±1) Hz, V 127, 220, 380, 660
Rated current of maximum releases, A 16