Application Environment Conditions

Ambient air temperature:-40℃-+45℃ , daily average temperature not over 25℃

Air relative humidity:daily average not over 95%,month average not over 90%

Altitude:not over than 3000m

Wind speed:not over 34m/s (wind pressure700Pa)

Pollution level:not over than GB/T 5582-1993 class Ⅳ

Install:outdoor,No inflammable, explosive, chemical corrosion and place of violent vibration.

Vacuum Circuit Breaker Dimension

product-516-327

Vacuum Circuit Breaker Structure

Circuit breaker is mainly composed of integrated enclosed a column, a current transformer, spring mechanism, and body composition. Vacuum circuit breaker of diversion loop progresses by terminal, vacuum arcing chamber under the contact, the outlet end. Circuit breaker is miniaturization design, circuit breaker can furnish two phase or three phase CT,the structure see drawing

product-459-214

1.CT 2.Under the line 3.Upper the line 4.Vacuum arc-extinguishing chamber 5.Insulation pull rod 6.Spring mechanical mechanism 7.Case

Drawing

The Controller Features

Intelligent circuit breaker with my company designed and developed the DK series of distribution automation feeder terminal, the controller is used in the 40.5 kV and below power distribution system of overhead line feeder terminal units, set line protection, control, voltage, current signal measurement and monitoring and an organic whole, cooperate with circuit breaker line state self-checking function, malfunction analysis records, driving switch equipment safety protection circuitry, has cut off the circuit permanent fault and transient recovery circuit short failure.

The controller also has perfect a three-stage over-current protection, reclosing, on the remote control, remote communication, contact ring net switch function, and is equipped with a powerful input and output ports, may meet tile, tile, such as temperature, owe tripping signal contact, to protect control; At the sametime, the three-phase voltage and current parameters can be measured. According to the setting ratio, all data is displayed as a numerical value to realize the function of reclosing and realize the function of reclosing.At the sametime, the controller supports GPRS/GSM, Ethernet, optical fiber, RS232 / RS485 communication way, and can be connected to other main station systems (note: when you need to access other main stations, users need to provide a table and a protocol).

Install,Use And Maintain

When unpacking the case should check the circuit breaker have three pole insulation insulation support without rupture, nameplate, certificate of approval, such as whether to match the order list, packing list is consistent with the physical.
Before the circuit breaker operation, should carefully check all the major technical parameters of electrical components are consistent with the actual, adopt the circuit breaker
Circuit breaker base mounting hole size,see table 3
Circuit breaker as a result of its special design structure to ensure that the user is in use process do long-term maintenance
Operation personnel should be preliminary understanding the performance of the operating mechanism and basic knowledge of installation, adjustment and maintenance, to keep a record of the problems in detail in the operation of the necessary inform me by phone or fax to the company

product-483-165

Main Technical Data

Table 1 Circuit Breaker Main Technical Data

No	ITEM			Unit	Data
1	Rated voltage			kV	24
2	Rated current			A	630	1250
3	Rated frequency			Hz	50/60
4	Rated insulation level	1min power frequency	Dry(inter phase/to earth/break)	kV	65/79 34
			Wet(inter phase/to earth/break)		50/65
		withstand voltage	The secondary loop over the ground			2
		Lightning impulse withstand voltage(To earth/break)				125/145
5	Rated short-circuit breaking current				kA	20	25
6	Rated short-circuit making current(peak)				kA	50	63
7	Rated short-time withstand current				kA	20	25
8	Rated peak withstand current				kA	50	63
9	Rated short-circuit breaking times				times	20
10	Rated short-circuit duration time				s	4
11	The rated operating voltage and the rated voltage of				V	DC220 ,AC220
12	Rated operation order					open-0.3s-close/open - 180s-close/open
13	Overcurrent trip rated current				A	5
14	Mechanical life				times	10000
15	weight			Without isolator knife	kg	115
				With isolator knife		138

Table 2 Operation mechanism technical data

No	ITEM	UNIT	DATA
1	Energy storage motor rated power	W	≤70
2	Closing energy storage time	s	≤8
3	Store the working voltage of the machine	V	AC220 AC110
3	Store the working voltage of the machine	V	DC24 DC110 DC220
4	The closing coil tripping voltage	V	AC220 AC110
4	The closing coil tripping voltage	V	DC24 DC110 DC220
5	brake coil voltage tripping	V	AC220 AC110
5	brake coil voltage tripping	V	DC24 DC110 DC220
6	Overcurrent tripping current coil	A	5

Table 3 Circuit Breaker Mechanicalcharacteristicsadjustment data

No	ITEM	UNIT	DATA
1	Contact distance	mm	12±1
2	Overtravel		3±1
3	Phases center distance		380±1.5
4	Three phase open, closing not synchronism	ms	≤2
5	Contact closing bounce time		≤2
6	Closing time		25～80
7	Breaking time		20～50
8	Average breaking time	m/s	1.1～1.7
9	Average closing time	m/s	0.5~0.9
10	Main circuit resistance	μΩ	≤100