AF311E Additional Protection Relais Electrical Lab Equipment Didactic Equipment Vocational Training Equipment1. Product Introduction
1.1 Product Description
The power system is a key infrastructure of modern society. It transmits electric energy to the user end efficiently and reliably through power generation, transmission, transformation, distribution and consumption. With the advancement of technology, the power system is developing towards intelligence, greenness and efficiency.
During the operation of the power system, there is often a set of auxiliary protection systems for monitoring the operation status of the power system. It is mainly used to detect and respond to specific faults or abnormal conditions to enhance the reliability of the main protection system. The additional protection relay is one of the auxiliary systems. Its main functions include: (1) Fault detection, identifying abnormalities such as short circuit, overload, and ground fault; (2) Signal output: After detecting a fault, it sends a signal to the circuit breaker or control system to trigger the protection action; (3) Backup protection: Provide an additional layer of protection when the main protection fails.
1.2 Product Features
1. The product has excellent electrical safety performance and adopts excellent protection design and grounding reliability.
2. The product design is beautiful and simple in structure.
3. The product adopts anti-corrosion measures. The solid material is strong and durable, which greatly extends the service life of the product.
4. The product has rich experimental modules, which can be used for rich teaching practice.
2. Technical specifications
2.1 Technical parameters
Power supply parameters: three-phase five-wire AC380V
Three-phase squirrel cage asynchronous motor parameters: △/Y type connection; voltage 380/660V 50Hz; speed 1500rpm; power 300W.
Three-phase synchronous generator parameters: power 300W; excitation voltage DC12~24V; speed 1500rpm; connection method: Y type; power generation voltage 380V.
Working environment conditions: ambient temperature -10℃～+40℃, relative humidity < 85% (25℃).
2.2 Dimension and weight
Dimension 1: 1580mm*610mm*650mm
Weight 1: 81kg
Dimension 2: 830mm*280mm*370mm
Weight 2: 24kg
3. Product component name and function introduction
3.1 Product main part
|
No
|
Name
|
Qty
|
|
1
|
Aluminum alloy frame
|
1
|
|
2
|
Power box
|
1
|
|
3
|
Three-phase synchronous generator
|
1
|
|
4
|
Three-phase squirrel cage asynchronous motor
|
1
|
3.2 Product electrical part
|
No
|
Name
|
Qty
|
|
1
|
Overvoltage/undervoltage relay box
|
1
|
|
2
|
Overcurrent relay box
|
1
|
|
3
|
Power and reverse power relay box
|
1
|
|
4
|
Power grid module box
|
1
|
|
5
|
AC voltage and current meter box
|
2
|
|
6
|
Circuit breaker
|
1
|
|
7
|
Emergency stop switch
|
1
|
|
8
|
Automatic grid controller
|
1
|
|
9
|
Three-phase power output interface
|
1
|
|
10
|
Excitation voltage controller
|
1
|
|
11
|
DC 24V power output interface
|
1
|
|
12
|
Adjustable load module
|
3
|
3.3 Product accessories
|
No
|
Name
|
Qty
|
|
1
|
4mm safety connection cable 1m green
|
10
|
|
2
|
4mm safety connection cable 1m yellow
|
10
|
|
3
|
4mm safety connection cable 1m black
|
10
|
|
4
|
4mm safety connection cable 1m blue
|
5
|
|
5
|
4mm safety connection cable 1m two-color
|
5
|
|
6
|
4mm safety connection cable 1m red
|
10
|
|
7
|
2mm safety connection cable 1m red and black
|
8
|
|
8
|
DB9 connecting line
|
1
|
|
9
|
U-bridge 4mm safety connection cable black
|
1
|
|
10
|
USB conversion 485 device
|
1
|
|
11
|
Fuse 3A 5*20
|
5
|
|
12
|
Fuse 4A 5*20
|
10
|
|
13
|
Fuse 5A 5*20
|
10
|
|
14
|
Software USB disk
|
1
|
|
15
|
Zhongzhi communication interface conversion module
|
1
|
|
16
|
Phase tester
|
1
|
|
17
|
Motor base
|
1
|
|
18
|
Industrial socket
|
1
|
4. Product teaching experiment list (see the experimental instructions for details)
(1) Wiring and experimental demonstration of overvoltage/undervoltage relay module
(2) Wiring and experimental demonstration of overcurrent relay module
(3) Wiring and experimental demonstration of power and reverse power relay
