CKM-S27Serial household investigation of programmable simulation device

1、 Overview

With the construction of smart grids, low-voltage residential smart metering boxes are widely used. Due to the complexity of the installation site environment, there are many problems during the installation process. In addition, due to the uneven skill levels of installation and construction personnel, faults such as wiring errors and mismatched meter relationships often occur after the installation of smart metering boxes, which causes unnecessary trouble for users and system operation. At the same time, the operation and maintenance personnel cannot simultaneously access various types of faults that occur on site, and their understanding of the operating environment is not comprehensive enough. Through multi-faceted communication and exchange with on-site experts and frontline teachers, a simulation device for low-voltage household inspection of residents has been designed and developed.

CKM-S27The main training objects of the household inspection and program control simulation device include rural power supply stations, distribution installation and commissioning, operation and maintenance personnel, and it is also applicable to rural power distribution business workers, electrician level assessment and evaluation, competitions, etc. in the power training center.

2、 Functional Features

1) The cabinet adopts standardGGDCabinet type, in accordance with the on-site low-voltage distribution cabinet form;

2) Comply with safety regulations and relevant regulations;

3) The device is composed of commonly used on-site metering box mounted meters, power connection units, cabinets, and fault device units, making the operation and training of students closer to the site;

4) The power supply adopts the method of isolating transformers from the mains power, adding current type overload protection boards and leakage protection modules. When a short circuit is caused by misoperation, reliable protection is provided by comprehensive protection modules, main air switches, and fuses; Protect the safety of students and equipment;

5) Equipped with voice alarm prompt function;

6) The device can set a fault level where the tail information and user information do not match; The second level fault occurs when the tail of the meter is connected to the user's air circuit breaker; There is a fault in the third pole of the user load series from the user air switch output line, and there is a load indicator light indicating whether it is connected to the controllable function and the user load conversion function.

7) First level faults, second level faults, third level faults, and indicator light access control can all be controlled throughPCThe software is used for setting, and the load conversion is adjusted through the load transfer terminal inside the device;

8) What is the string of information in the fault table12Households can freely connect with each other; The second level fault can only be detected between the single-phase meter and the incoming line of the circuit breakerAThe four households are interconnected,BThe four households are interconnected,CInterlinking households among the four; The third pole fault refers to the series connection between the air circuit breaker output line and the user load12Households can be freely and unrestricted connected in series; As one of the loads, we can freely control whether the indicator light is connected to the circuit.

9) This device can test students' ability to judge on-site household faults and their ability to search for, handle, and correctly use tools and commonly used meters;

10) PCThe software is fully controlled, with functions for editing candidate information, user information, question bank, and printing test answers, making it convenient for teaching and practical training;