Lightweight hydraulic transmission experiment desk

1. M--n technical parameters

① Experiment workbench

The experimental table is composed of iron m--n body and aluminum alloy panel (T -shaped hook trough).

Working platform size: length × width × height = 1500mm × 850mm × 1800mm (about 270kg after the packaging)

During the overall operation of the equipment, the noise is not higher than 60 decibels (1.5 meters away).

② Hydraulic pumping station

Pump station rated work pressure: 2.5MPa. (Work pressure 0.5-1mpa)

⑴. Motor -pump device (1)

Gear pump-motor 1: use inner shaft integrated installation, compact structure, low noise

Gear pump: one -way, output displacement 6L/min

Motor: three -phase AC voltage, power 0.37kW, speed 1450r/min;

⑵. Oil tank: nominal volume of 30L; with liquid level, oil temperature instructions, oil absorption, oil return filtering device, safety valve, etc.

(3) Flow meter: accuracy 0.01L/min, including the display instrument. Pressure gauge: 0-2.5MPa.

I. Overview

 

At present, the majority of power system relay protection adopts micro -model protection device. It is a very important position in the second part of the power system as a modern protection device. Therefore, it is very important to master the professional and technical personnel of the power system and professional and technical personnel on the job to master the wiring, parameter settings and commissioning of microcomputer devices.

 

"Comprehensive tr--ning device of power system microcomputer protection" is a comprehensive tr--ning device for vocational colleges' power technology professional "power system relay protection", "power system microcomputer protection" and related professional courses. This tr--ning device adopts the microcomputer line measurement and control device and microcomputer transformer measurement and control device widely used in power engineering, and configure the simulation system (including transmission lines, power transformers, load impedance, short -circuit impedance), three -phase adjustable power supply voltage regulator and other functions The module can complete the characteristic testing and assessment items of microcomputer line, microcomputer transformers protection device, wiring, and line protection, transformer protection parameters, operation and operation. This device can be used for tr--ning in the power industry, and can also be used for tr--ning and teaching in related majors such as vocational colleges.

 

Two and characteristic

 

1. The core equipment of the tr--ning device -microcomputer line measurement and control device, microcomputer transformer measurement and control device, and has a physical simulation system, so that students can intuitively understand the changes in the battery parameters when various short -circuit f--lures occur in the power system.

 

2. The tr--ning device has an upgrade interface, and users can expand relay protection and secondary circuit tr--ning projects based on the simulation system.

 

3. Communication group network: The tr--ning device has the RS-485 bus interface, which can realize the power system SCADA based on microcomputer measurement and control device.

 

3. Technical indicators

 

1. The rated voltage: three -phase and five lines ～ 380V ± 10% 50Hz

 

2. Working environment: The environmental temperature range is -5 ° C ~+40 ° C relative humidity <85%(25 ° C) altitude <4000m

 

3. Rating capacity: 3.0kva

 

4. Dimensions: 1240mm × 500mm × 2000mm