Product Details:

Purpose and Scope of Application

GNW1-1000 universal intelligent circuit breaker (hereinafter referred to as circuit breaker), applied to ac 50 hz, rated voltage 400 V, 690 v, rated current 200 ~ 1000 a power distribution network, are mainly used for distribution power and protect circuit and power equipment from overload, short circuit, under voltage, the harm of single-phase grounded fault. Under normal conditions can be used for line not frequent transformation, also can be used for infrequent motor starting and protection purposes. The circuit breaker has a variety of inelligent protection function, accurate, selective protection can improve power supply reliability and avoid unnecessary power outages. Circuit breaker, with isolation function symbol for "  ".

Circuit breaker technical performance is in line with GB14048.2 "low-voltage switchgear and control equipment Part 2: circuit breaker ". IEC60947-2 "low-voltage switchgear and control equipment Part 2: circuit breaker "and other standards.

Product Model Meaning and its Dlassification 

classification

by using categories: class A (not wide choices) class B (wide choices)

installation: stationary drawer

mode of transmission: motor drive manually

The number of 2.1.4: three pole quadrupole

trip types: intelligent controller shunt tripping device Under voltage instantaneous trip (or latency)

classification of intelligent controller (standard configuration for M type intelligent controller)

GNW1 series intelligent controller adopts coding switch, toggle switch mode of setting. According to its protective properties can be divided into 2 |2, I3 and |4 2 2 three basic types, also has the button setting mode and digital tube display of M type intelligent controller and liquid crystal display (LCD) H intelligent press system.

(basic) :Overload long time delay + Short circuit instantaneous;2 |3 (selective protection) : Overload long time delay + Short circuit the short time delay + Short circuit instantaneous;2 14 (selective protection and earthing protection) :Overload long time delay + Short circuit the short time delay + Short circuit instantaneous +Grounding protection (current vector and the way), .

M type intelligent controller: using adjusted button setting of protection parameters, digital tube display shows a variety of data, protection function diversification.

intelligent controller performance

A) has the overload long time delay (latency), short circuit the short time delay, short-circuit transient dynamic and single-phase grounding protection function, can be set by the user, of the required protective properties;

B) single- phase grounding protection performance: according to the three phase current and neutral current vector and protection;

C) display function: load current beam, MCU monitoring operation;

D) alarm function: overload pre-alarm;

E) self-check function: overheating protection, computer self-diagnosis, A/D conversion self-inspection self-inspection, E2PROM chips was introduced;

F) test function: validation of the controller action features;

G) fault memory function: check the fever of lines or equipment, check the fault current, delay time and the fault status;

H) MCR and the tripping function limits; The fault current in circuit breaker main circuits, the circuit breaker in the closing moments, as long as the main circuit fault current and greater than the set values for the short time delay, the circuit breaker should be instantaneous action. 2 |2 without this feature;

I) setting function: using code switch, toggle switch or button in a way that current and time setting;

J) contact output function: output circuit breaker with four groups of contacts: overload alarm, grounding alarm, self-diagnosis, alarm, OCR fault tripping alarm.

normal working conditions

ambient air temperature

ceiling not more than + 40°C; .

lower limit of not less than 5 °C;

average no more than 24h + 35 °C;

Note: 1, the lower limit for- 10 °C and 25 °C working conditions and users in order to the factory declaration;

the ceiling more than + 40 °C or lower limit value is lower than 25 °C working conditions, users should negotiate with factory.

At an altitude of 3.2

installation location altitude does not exceed 1000 m.

atmospheric conditions

Air relative humidity in the ambient air temperature is + 40 °C not more than 50%, at a lower temperature can have higher relative humidity, the

wettest month average maximum relative humidity is 90%, while the lowest monthly average temperature of the month to + 25 °C, and considering

the due to temperature changes happened in any condensation on the product surface.

pollution levels

Level

installation category

Circuit breaker for the installation of the main circuit category IV classes, in addition to the installation of auxiliary circuit category under voltage trip coils, the main circuit of power transformer primary coil and the circuit breaker is the same, the rest are m class.

use category ;

Class B

installation conditions

Circuit breaker shall be installed according to the operation instruction of requirements for installation. The vertical slope of the circuit

breaker is not more than 5。.

technical data and performance

the circuit breaker rated current are shown in table 1.

technical data and performance

the circuit breaker rated current are shown in table 1.

the circuit breaker rated insulation voltage 690 v. Rated voltage 400 v, 690 v.

the circuit breaker rated short circuit making capacity shall be not less than 2.1 lcu.

the circuit breaker rated short circuit breaking capacity and short-term resistance current is shown in table 2.

note: Ue=690V， leu=20kA。

intelligent controller protection features

intelligent controller setting value and error are shown in table 3.

circuit breaker installation size, shape size and switch cupboard door opening size

the installation of fixed type circuit breaker size size and shape as shown in figure 8;

draw out circuit breaker installation dimensions and the dimensions as shown in figure 9.

the installation size and shape dimensions of the circuit breaker in figure 10