Product Description
  

The YRKK series (H355~1000) 6KV, 10KV high-voltage three-phase asynchronous motors are wound-rotor asynchronous motors. This series of motors has a protection grade of IP44 or IP54, and the cooling method is IC611 (refer to GB/T1993).
This series of electric tools offers advantages such as energy-saving, low noise, minimal vibration, lightweight, reliable performance, and easy installation and maintenance.
This series of motors can provide increased starting torque at a lower starting current and can be adjusted within a certain range, suitable for: situations where the feeder line capacity is insufficient to start squirrel-cage rotor motors; where the starting time is prolonged and the frequency of starting is high; and where fine-tuning of speed is required. Such as: hoists, rolling mills, wire drawing machines, etc.
This series of motors features F-grade insulation structure, bearing design according to IP54 standards, with H355 to 630 models utilizing grease lubrication, and H710 to 1000 models employing forced稀油 lubrication with sliding bearings.
This series of electric motors has an IMB3 structure and installation type. The rated capacity is based on a continuous duty cycle (S1). The rated frequency of the motor is 50Hz, and the rated voltage is 6KV or 10KV. For other voltage levels or special requirements, they can be negotiated with the customer upon order.
Section II: YRKK High Voltage Motor Model Meaning

Example:YRKK 3552-4      

"YRKK" indicates a wound rotor asynchronous motor with a closed-type air-air cooled cooler.

"3552" indicates the base center height is 355mm, and the No. 2 core length is 2.
"4" indicates the plural form.
Section 3: Ordering Instructions for YRKK High-Voltage Electric Motors
(Requirements must be specified at the time of customer order)
Motor Model (YRKK3552-4)

Installation Method (IMB3)
Rated Power (185kW)

Protection Rating (IP44 or IP54)
Rated Voltage (6000V)

Cooling Method (IC611)
Rated Frequency (50Hz)

Insulation Grade (F Class)
Synchronous Speed (1500 rpm)

Environmental Conditions (Altitude: 1000m, Environmental Temperature: 40℃)

The YRKK series motors comply with industry standards JB/T7594 "Technical Conditions for YR Series High-Voltage Wound Rotor Three-Phase Induction Motors" and other relevant standards in terms of power ratings, installation dimensions, and electrical performance. Their installation dimensions and power ratings also meet the requirements of IEC72-2 standard.

The cooling methods for the YRKK series motors are in accordance with the standards of GB1993 and IEC34-6 "Cooling Methods for Electric Motors," including IC01, IC81W, and IC611. This series of motors are installed in a horizontal base-mounted structure (MB3), compliant with the specifications of GB997 and IEC34-7 "Motor Structures and Mounting Type Designations." For any other requirements, please negotiate separately.