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High voltage load switch-fuse combination FZN25A-12(D)/T630-20 FZRN25A-12(D)/T200-31.5

FZN25A-12(D)/T630 indoor AC high voltage vacuum load switch is suitable for three-phase AC, 50Hz, 12KV power supply network

High voltage load switch-fuse combination FZN25A-12(D)/T630-20  FZRN25A-12(D)/T200-31.5

Quantity

Product Detail

General

FZN25A-12(D)/T630 indoor AC high voltage vacuum load switch (hereinafter referred to as load switch) is suitable for three-phase AC, 50Hz, 12KV power supply network, as the breaking load current and closing short-circuit current. The product is equipped with manual and motor operating mechanism, especially suitable for occasions under severe conditions, without long maintenance period and frequent operation requirements. Vacuum load switch with fuses - fuse combination appliances (hereinafter referred to as combination appliances). FZN25A-12(D)/T200 can break short-circuit current for short-circuit protection. The product has a mechanism tripping, and the fuse has a bumper. When an overload current or a short-circuit current is passed, the fuse is blown, and the striker hits the trip device to automatically open the load switch to avoid phase loss operation.


Normal use environment:

1. Ambient air temperature: up to +40 ° C, minimum -25 ° C;

2. The altitude does not exceed 1000mm;

3. The daily average relative humidity is not more than 95%, and the monthly average is not more than 90%;

4. Earthquake intensity: below level 8;

5. The surrounding air should be free from harmful gases such as corrosive or flammable gases and water vapor.


Main electrical technical parameters

Item

Unit

FZN25A-12D/T630

FZRN25A-12D/T200

Rated voltage

KV

12

12

Rated Frequency

Hz

50

50

Rated Current

A

630

200

Rated breaking current

Active load breaking current

A

630


Closed loop current

A

630


No-load transformer

KA

1600

1600

Cable charging current

A

10


Rated transfer current

A


3150

Rated short-time withstand current 4S

KA

20


Rated peak withstand current

50


Rated short-circuit breaking current

KA


3.15

Rated short circuit closing current

KA

50


Rated short-time 1 min  power frequency withstand voltage
On the groud and  Fracture

KV

42/48

42/48

Rated lightning impluse withstand voltage(peak)

KV

75/85

75/85

 

Main mechanical property parameters


 Parameters

Unit

Numerical value

Remark

Vacuum interrupter opening distance

mm

6


Vacuum interrupter contact stroke

mm

-2

Measuring contact spring compression stroke

Isolation fracture opening

mm

≥130


Interphase center distance

mm

210±1


Three-phase closing of vacuum interrupter

ms

≤3


Vacuum interrupter allows
 contact closing bounce time

ms

≤3


Vacuum interrupter average closing speed

m/s

0.6±0.2


Vacuum interrupter average closing speed

m/s

0.9±0.2


Conductive loop resistance

μΩ

≤300


Maximum operating torque required
 for human operation

Nm

≤160


Mechanical life

Times

10000


 

Motor technical parameters

Rated voltage

Rated output power

Normal operating voltage range

220

70W

85%-100% Rated voltage

 

Shunt release parameter

Rated voltage

Normal operating voltage range

DC220 DC110

80%-120% Rated voltage



Outline technical parameter



No comment

Product Detail

General

FZN25A-12(D)/T630 indoor AC high voltage vacuum load switch (hereinafter referred to as load switch) is suitable for three-phase AC, 50Hz, 12KV power supply network, as the breaking load current and closing short-circuit current. The product is equipped with manual and motor operating mechanism, especially suitable for occasions under severe conditions, without long maintenance period and frequent operation requirements. Vacuum load switch with fuses - fuse combination appliances (hereinafter referred to as combination appliances). FZN25A-12(D)/T200 can break short-circuit current for short-circuit protection. The product has a mechanism tripping, and the fuse has a bumper. When an overload current or a short-circuit current is passed, the fuse is blown, and the striker hits the trip device to automatically open the load switch to avoid phase loss operation.


Normal use environment:

1. Ambient air temperature: up to +40 ° C, minimum -25 ° C;

2. The altitude does not exceed 1000mm;

3. The daily average relative humidity is not more than 95%, and the monthly average is not more than 90%;

4. Earthquake intensity: below level 8;

5. The surrounding air should be free from harmful gases such as corrosive or flammable gases and water vapor.


Main electrical technical parameters

Item

Unit

FZN25A-12D/T630

FZRN25A-12D/T200

Rated voltage

KV

12

12

Rated Frequency

Hz

50

50

Rated Current

A

630

200

Rated breaking current

Active load breaking current

A

630


Closed loop current

A

630


No-load transformer

KA

1600

1600

Cable charging current

A

10


Rated transfer current

A


3150

Rated short-time withstand current 4S

KA

20


Rated peak withstand current

50


Rated short-circuit breaking current

KA


3.15

Rated short circuit closing current

KA

50


Rated short-time 1 min  power frequency withstand voltage
On the groud and  Fracture

KV

42/48

42/48

Rated lightning impluse withstand voltage(peak)

KV

75/85

75/85

 

Main mechanical property parameters


 Parameters

Unit

Numerical value

Remark

Vacuum interrupter opening distance

mm

6


Vacuum interrupter contact stroke

mm

-2

Measuring contact spring compression stroke

Isolation fracture opening

mm

≥130


Interphase center distance

mm

210±1


Three-phase closing of vacuum interrupter

ms

≤3


Vacuum interrupter allows
 contact closing bounce time

ms

≤3


Vacuum interrupter average closing speed

m/s

0.6±0.2


Vacuum interrupter average closing speed

m/s

0.9±0.2


Conductive loop resistance

μΩ

≤300


Maximum operating torque required
 for human operation

Nm

≤160


Mechanical life

Times

10000


 

Motor technical parameters

Rated voltage

Rated output power

Normal operating voltage range

220

70W

85%-100% Rated voltage

 

Shunt release parameter

Rated voltage

Normal operating voltage range

DC220 DC110

80%-120% Rated voltage



Outline technical parameter





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