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We are the supplier and exporter of low & medium voltage electric equipements: Electric Connectors, Industrial Plugs, XAC Pendent Pushbutton Switches, APP SB Power Connectors ,Contacts,Split Core Transformer, Clamp Transformer, Distribution box, LED Lampes. And crane parts: Electirc Hoist, Terminal Blocks, COB,XAC Pendant Control Stations, Crane Overload Detector, Cut off limit..

Indoor AC Metal-clad Switchgear KYN -40.5

Indoor AC Metal-clad Switchgear KYN -40.5

 

KYN  -40.5 Indoor Metal-clad AC Switchgear (hereafter referred to as Switchgear) is a new generation of indoor complete set of switchgear, conformed to GB 3906 [3-35KV Metal-clad Switchgear]. It is assembled by bent zinc plates coated with aluminum by imported and is designed beautifully. The main switch adopts circuit-breaker made by Powell Co. of USA, according to Chinese Standards. It is the most popular middle mounted switchgear among the users. 
      It is used to single bus section system of three-phase AC with 35KV rated voltage and 50HZ rated frequency to accept and distribute electric power. It is indoor switchgear which can control, protect and monitor the circuit.

Product feature :
      a. Metal-clad structure;
      b. It is assembled by imported multiple bent zinc plates coated with aluminum and rivets;
      c. Original vacuum circuit breaker trolley;
      d. Original cap shaped and longitudinal magnetic field vacuum ceramics extinction arc room with low cut value;
      e. Off and on spring operating mechanism of low vibration and low noisy obtained a patent from America;
      f. The front and back layout of the mechanism and the switchgear is easy to be debugged;
      g. The busbar is covered by pyrocondensation insulating material;
      h. The simulation busbar board adopts a new type dynamic indicator;
      i. The earthing switch has high making ability and is operated by bevel gear mechanism, the operating force is small;
      j. The structure of middle mounted trolley with good interchangeability and mechanical stability;
      k. Dimension (width*depth*height): 1200x2500x2300 (dwindling 30% in size than the similar product).

Type and designation :

Indoor AC Metal-clad Switchgears

Technical parameter :

No.

Name

Unit

Data

1

Rated voltage

kV

40.5

2

Rated current

A

1250,2000

3

Main busbar rated current  (Max)

A

2500

4

Rated frequency

Hz

50

5

Main circuit short-time/peak
withstand current

Rated short-time withstand current
(r.m.s)

kA

25,31.5

Rated short circuit lasting time

s

4

Rated peak
withstand current

kA

63,80

6

Earthing switch short time/peak withstand current

Rated short-time withstand current
(r.m.s
)

kA

31.5

Rated short circuit lasting time

s

4

Rated peak withstand current

kA

80

7

Short

time/peak

withstand current of trolley and

switchgear

glide and earthing

Rated

short-time withstand current

(r.m.s)

kA

27.4

Rated short circuit lasting time

s

4

Rated peak withstand current

kA

70

8


Main circuit rated insulation level

Lightning

impulse withstand

voltage

(peak)

Phase to phase

phase to earth

kV

185

Isolating distance

215

1min power frequency withstand voltage

(r.m.s)

Phase to phase

phase to earth

kV

95

Isolating distance

115

9

Auxiliary circuit power frequency
withstand voltage(
1min)

kV

2

10

Rated short circuit breaking current

kA

25, 31.5

11

Rated short circuit making current

kA

63,80

12

Operation order

 

O-0.3s-CO-180s-CO

13

Main circuit Resistance

Rated current<=1250

¦Ì¦¸

<=110

Rated current 1600-2000A

¦Ì¦¸

<=85

14

Earthing resistance

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