DYDJ-BT motor frequency conversion start and speed regulation training device

2. Characteristics

1. The standard power distribution cabinet is used as the m*n cabinet. The control cabinet space is reasonably utilized, the floor space is small, and the appearance is beautiful.

2. The device selection, installation and wiring of the control cabinet are strictly in accordance with the "Safety Design Guidelines for Electrical Equipment", "Insulation Cooperation of Equipment in Low-Voltage Systems", "Conductor Colors in Electrical Complete Sets", "Motor Wire End Marks and Rotation direction" and other relevant national standards. All components used are from well-known brands at home and abroad, and product quality is guaranteed.

3. Use industrial frequency converters and YPF series variable frequency speed-regulated three-phase asynchronous motors as control objects, close to the industrial site.

4. Provide various protection functions, making tr*ning safe and reliable.

3. Technical performance

1. Input voltage: three-phase four-wire (or three-phase five-wire) ~ 380V±10%50Hz

2. Working environment: temperature -5℃～+40℃, relative humidity <85% (25℃), altitude <2000m

3.Device capacity: <4kVA

4. System configuration

This tr*ning cabinet is m*nly composed of a cabinet, an electrical room, a general frequency converter, a signal source, a variable frequency speed-adjustable three-phase asynchronous motor, etc.

1. Cabinet

The cabinet body is a double-layer matt dense-gr*n spray-plastic structure, with a double-sided cabinet door design and cold-rolled steel plate, which is strong and beautiful. There are primary incoming and outgoing line terminal blocks, outlet holes and grounding marks inside. The control cabinet is also equipped with four universal wheels and four fixed adjustment mechanisms.

2. Electrical room

The front cabinet door is equipped with an AC voltmeter, an AC ammeter, and a voltage indication switch. The voltage indication switch can indicate the UUV, UVW, and UWU line voltage values ​​of the power grid respectively. The AC ammeter is used to monitor the load current. It is also equipped with operating status indicator light, push button switch, emergency stop button, frequency adjustment potentiometer, etc. The interior of the electrical room m*nly consists of circuit breakers, fuses, AC contactors (Schneider), thermal relays, input reactors, output reactors, filters, braking units, current transformers, cooling fans, secondary external terminal blocks and other devices composition.

3. General frequency converter

Provides Japanese Mitsubishi general-purpose F700 series inverters (with high-efficiency and energy-saving functions).

4. Signal source

Provides 0~10V, 4~20mA signal source module to realize external voltage and current control of the frequency converter.

5. Three-phase asynchronous motor

Three-phase variable frequency speed regulating motor YVP90L-4 frequency regulating motor 1.5kw, 1391rpm, equipped with special motor connecting cable.

5. System configuration

1. Understanding of frequency converters

2. Setting and operation of inverter parameters

3. Device selection and installation of three-phase asynchronous motor variable frequency starting and speed regulation circuits

4. Wiring and wiring of three-phase asynchronous motor variable frequency starting and speed regulating circuits

5. Debugging of three-phase asynchronous motor variable frequency starting and speed regulation circuits

6. Trial operation of three-phase asynchronous motor variable frequency starting and speed regulation circuit

7. Panel control of the frequency converter

8. Potentiometer control of frequency converter

9. Voltage control of frequency converter

10. Current control of frequency converter

11. Frequency conversion speed regulation of three-phase asynchronous motor

12. Fault analysis and m*ntenance of three-phase asynchronous motor variable frequency starting and speed regulation circuits