BGHM1E Series Electronic Plastic Case Circuit Breaker
Data： 2021-03-12 10:37:17 Hits： 771
Scope Of application
BGHM1E series electronic plastic case circuit breaker (hereinafter referred to as circuit breaker), suitable for AC 50Hz (or 60Hz), its rated insulation voltage is 800v, rated working voltage is 690V and below, and it is not frequently used in circuits with rated working current up to 800A For conversion and infrequent starting of the motor. The circuit breaker has overload long-delay inverse time, short-circuit short-delay inverse time, short-circuit short-delay definite time, short-circuit instantaneous and under-voltage protection functions, as well as residual current protection (optional), lack of phase protection (optional), and can Protect the circuit and power equipment from damage. The circuit breaker has complete and accurate protection features, which can improve the reliability of power supply and avoid unnecessary power outages. Among them, the "Z" type control has a communication interface and can be "four remotes" to meet the control Requirements for centers and automation systems.
Circuit breakers are classified into M type (higher breaking type) and H type (high breaking type) according to their rated ultimate short-circuit breaking capacity. The circuit breaker has the characteristics of small size, high breaking capacity, short arcing, and anti-vibration.
The circuit breaker can be installed vertically (ie vertical installation) or horizontally (ie mold installation).
The circuit breaker has an isolation function, and its corresponding symbol is:.
The circuit breaker cannot be reversed, that is, only 1, 3, and 5 are allowed to be connected to the power line, and 2, 4, and 6 are connected to the load line.
Model and meaning
1. According to the rated limit short-circuit breaking capacity, it is divided into M type (higher breaking type) and H type (high breaking type). 2. There is no code for direct handle operation: P is used for electric operation; Z is used for rotating handle.
3. The basic type has no code, the intelligent communication type is represented by Z, the fire type is represented by X, and the leakage type is represented by L.
Normal working environment
Altitude: ≤2000m
Ambient temperature: -5℃-+40°℃, able to withstand the influence of humid air, able to withstand the influence of salt mist and oil mist
The installation category of the main circuit of the circuit breaker is..., and the installation category of the remaining auxiliary circuits and control circuits is ll.
When the maximum temperature is +40℃, the relative humidity of the air does not exceed 50%, and higher relative humidity is allowed at lower humidity. Special measures should be taken for the occasional condensation due to temperature changes.
Maximum tilt is 22.5°
In a non-explosive medium, and the medium does not have enough gas and conductive dust to corrode metal and damage the insulation
Where there is no rain or snow
Main functions and features
The intelligent controller is the core component of the molded case circuit breaker. It is used in motor protection or power distribution protection to realize the integration of measurement, protection, control and communication functions to protect the circuit and power equipment from overload, short circuit, grounding and other faults.
Using MCU microprocessor control, stable and reliable performance: the intelligent controller can supply power by itself, as long as one phase is energized, when the current is not less than 20% of its rated value, the protection function can be guaranteed to work normally;
Selective coordination has three-stage protection: the use of class B circuit breakers and other short-circuit protection devices connected in the same circuit have selective coordination under short-circuit conditions; overload long delay inverse time, short circuit delay (inverse time, Time limit), short-circuit instantaneous protection function parameter setting;
It has three-stage protection parameter settings of action current and action time, which can be adjusted in 4-10 levels; users can set and adjust the controller according to load current requirements, or choose to shut down the corresponding function according to user requirements (customized function, user order is required Specify when);
High-current instantaneous trip function: When the circuit breaker is closed or in operation, if a short-circuit high current (≥2O0Inm) is encountered, the magnetic tripping mechanism of the circuit breaker can be directly tripped, and the double protection is more reliable and safe;
With tripping test (test) function: input DC 12V voltage to test the action characteristics of the circuit breaker; α fault self-diagnosis function: protect and detect the working status and operation of the intelligent controller itself;
With pre-alarm indication and overload indication: when the load current reaches or exceeds the set value, the corresponding light guide leads to the light source; α flux converter double air gap technology: the work is more reliable and stable, preventing misoperation, reliable tripping, and low power;
High protection accuracy: overload protection, short-circuit short-delay protection action time accuracy is ±10%; short-circuit instantaneous protection action value accuracy is ±15% depending on the operating current;
Optional function (Jiye BGM1E communication type)
With temperature monitoring and protection function: when the ambient temperature exceeds the set value (default setting 85 ℃), the controller will output an alarm photoelectric signal or open the circuit breaker; port dual passive signal output function: for signal (or alarm) ) Use, capacity AC230V 5A;
With overload thermal memory function: overload thermal memory function, short circuit (short delay) thermal memory function;
With fire shunt function: overload alarm does not trip (provide a pair of passive contacts) and provide shunt trip function; with communication function: standard RS232, RS485, Modbus field bus protocol;
Can be connected to a handheld programmer: set various protection parameters of the circuit breaker and perform nearly 10 fault queries and various status displays, etc.; can be connected to an intelligent control module: switch optical isolation contact signal output, including programmable DO output Features;
High-end type with LCD display module
Detailed function
Communication function
Through the communication protocol conversion card, it can be easily connected to PROFIBUS-DP protocol network, DEVICE-NET protocol and other distribution automation networks. It has remote control, remote adjustment, remote communication and remote measurement functions, which can realize remote operation of the circuit breaker to reach a long distance Power dispatch.
Telemetry: working parameters of the power grid, load current, fault parameters, etc.;
Remote communication: various parameters, tripping characteristics, rated current, etc. of the circuit breaker;
Remote adjustment: the computer remotely adjusts the various protection parameters, tripping characteristics, rated current, etc. of the circuit breaker; remote control: the disconnection of the computer remote control switch, etc.
Handheld programmer
LCD display, simple operation, simple interface, can set various protection parameters of circuit breaker, last fault query, function editing, DO function output programming, etc., function setting or futures function upgrade according to user-defined plan
Overload thermal memory function
The controller overload thermal memory function can be selected by the user, the factory default is to turn off the controller overload thermal memory energy, and the port short-circuit thermal memory function is fully released within 30 minutes
The thermal memory function of the controller (short delay) short-circuit current protection can be selected by the user, and the default is to turn off the controller (short delay) when leaving the factory. The thermal memory energy of the short-circuit current protection is completely released within 15 minutes.
Fault record function
The controller can record the last 10 fault types, fault trip time, fault phase and maximum fault current, and the fire shunt function will not be lost when the power is off.
It is used by the fire fighting system. When the trip condition is reached under the set parameters, the circuit breaker does not trip and outputs normally open and normally closed contacts. It also provides a shunt function. The user can choose whether to open the circuit breaker.
Programmable DO output function
The controller has four photoelectric signal outputs, D01 and D02 photoelectric signals can be programmed as the following function outputs, D03 is the opening signal, D04 is the closing signal
结构与标识简介
