Product Details:

Purpose and Scope

GNW1 Series intelligent universal circuit breakers (hereinafter referred to as the breaker), suitable for AC 50Hz, rated current rated voltage of 400V, 690，200-6300A distribution network, mainly used to distribute power and protection circuit and power supply equipment from overload, undervoltage, short circuit, single- phase grounding fault of hazards. The circuit breaker has a variety of intelligent protection function, can be selective protection and precise to avoid unnecessary power, improving reliability of power supply. Simultaneously with the open communication interface, remote, control and automation system to meet the requirements. Impulse withstand voltage circuit breakers at an altitude of 2000 metres 8000V (different altitude correction according to the standard, up to 12000V). The intelligent controller for circuit breaker without and sensors for use in isolation, labeled .

Breaker 1EC60947-2 low-voltage switchgear and controlgear Part I: low-voltage circuit breakers and GB14048.2- 2001 the low-voltage switchgear and control equipment such as low voltage circuit breaker standard. 

Types and What they Mean 

classification

installation

A.-fixed

B.-drawer

number of poles: three-pole and four-pole

by mode of operation

A. Electrical operated

B. manual operation (repair and maintenance)

tripping device type

Intelligent controller, under the instantaneous voltage (or delayed) release, and shunt release.

performance intelligent controller

A. intelligent controller are: h-type (communications), m (General Intelligence), I-(budget);

B. overload for long-time inverse-time overcurrent, short delay inverse time, definite and instantaneous functions.

Composition can be set by users themselves need protection;

C. single phase grounding fault protection features;

D. display: the display, operation current display setting current, line voltage display (voltage display should be made

at time of order);

E. alarm: overload alarm.

F. self-inspection function: hot post, computer diagnosis;

G. test function: test controller operation characteristics.

normal working conditions and installation parts

ambient air temperature

Upper limit value of not more than +40 °C, the lower limit is not lower than-5 °C, 24h average no more than +35 °C

Note: the minimum value is-10 C -25 °C, working conditions, user factory should be afirmed;

Top value exceeding + 40°C or lower limit below-10 °C-25 °C work conditions, the user shall consult with the factory.

installation site altitude does not exceed 2000m.

atmospheric conditions

Relative temperature differences in the atmosphere when the ambient air temperature + 40 °C does not exceed 50%, can have higher relative temperatures at lower temperatures, most wet month of average monthly maximum relative humidity of 90%, and the monthly mean minimum temperature of + 25°C and for taking into account the temperature changes that occur on the surface of gel. Set, the user shall consult with the factory.

pollution level 3

protection degree: IP30, circuit breaker installed in the Cabinet Chamber and installed sealing frame protection class IP54.

use category: class b or class a

install class

Rated voltage of 660V (690V) and below undervoltage tipping of circuit breaker, power transfomer primary coil used for installation category IV secondary circuit and control circuit installation category

installation conditions

Fault should be installed according to the requirements of this specification, circuit breaker the vertical inclination does not exceed 5 degrees (mine breaker inclination does not exceed 15 degrees).

technical data and performance

rated circuit breaker ampere meter, see table 1.

breakers of rated short circuit breaking capacity and short- time withstand current see table 2, circuit breakers arcing distance as "zero" (that is, outside the circuit breaker no flying no ARC), as shown in table 2.

circuit breaker the maximum dissipation power is 360W. Circuit breaker rated continuous current in different ambient temperatures, as shown in table 3.

had intelligent current controller and protective function of overcurrent protection characteristics

Ir setting of controllers (/In) and the error, as shown in table 4.

delay inverse-time overcurrent protection characteristics I2T|= (1.5IRI 'u (1.05~0.2) Ir 1 time is shown in table 5, a time errorof土15%

Note: tL-long time 1.5Irl the whole time, TL long delay time, as shown in table 5.

short delay time overcurrent protection characteristics

Short- delay over-current protection for setting time limits, if low expansion for inverse time-time, its characteristic I2Ts = (81r) 2ts,TS, designed for general delay time when VHF >8Ir, automatically convert time characteristic, time characteristic as shown in table 6.

Time error is土15%

4.4.1.1 over-current tripping characteristic as shown in Figure 1, ground-fault protection features as shown in Figure 2. M-mode intelligent controller functions.

A. ammeter function.

Displays the current of each phase and the earth leakage current, display the maximum phase current, can also display tuning, testing and fault current value or values.

B. voltmeter function displays the line voltage, normal maximum.

C. remote monitoring and diagnostic capabilities.

circuit breaker positive instructions

DW45 Series intelligent universal circuit breaker drawer

the outline and installation dimensions