Top Quality Fingerprint Employee Time Attendance Recorder - TFL(R)N36-12D Hexafluoride load switch-fuse combination – TENPRO

Product characteristics

Small size

Attractive appearance

Low cost

Performance stability

TFL(R)N36-12D

Hexafluoride load switch-fuse combination

Outline

TFLN36-12D, TFLRN36-12D indoor AC high voltage hexafluoride load switch and load switch-fuse combination electric appliance are designed and manufactured by our company, which digest and absorb foreign advanced technology and combine with the operation requirements of our country. The product has been fully tested and its performance meets the requirements of GB3804 3~63KV AC high-voltage load switch, GB16926 high-voltage load switch-fuse combiner, IEC 60265, IEC60420 standard requirements. The product has a “one in one grounding” three-station arc extinguishing chamber, reliable interlocking, strong break insulation. High degree, large climb distance design, special dynamic seal and fixed seal design, reliable sealing, is a new generation of high voltage switchgear equipment for urban power grid.

This product is suitable for three-phase AC 10kV, 50Hz electric power system. For industrial and mining enterprises, high-rise buildings, residential quarters, prefabricated substations and other places, it is used to break, close the load current, fault current, control and protection of the line and distribution transformers.

Superiority

The improved ring cabinets with this switch are suitable for higher altitude areas (below 3800m).

Design feature

The load switch and the combined electric appliance are composed of the same insulated torso switch body, the respective spring operating mechanism, the fuse contact seat and the fuse action impact tripping system.

The upper and lower body shells are injected with epoxy resin to form an inflated cavity. The common dynamic contact can be rotated in sequence to complete the three working states of “one in one and one ground”, and the electric closing and closing can be added to the basic manual spring operating mechanism for energy storage. The remote control operation is realized for the user to choose.

The front of the body box may be equipped with a SF6 gas pressure gauge with a position indicator for monitoring changes in SF6 gas pressure. The position indicating device is directly connected with the moving contact drive shaft, indicating the working position of the moving contact is absolutely reliable.

There is a safety diaphragm at the back of the body. When there may be some kind of accident inside the arc extinguish chamber and the pressure is too high, the overpressure gas can be released through the diaphragm to ensure personal safety.

Load switches and earthing switches, earthing switches and front doors (switches with this interlock for use in cabinets) have reliable mechanical interlocks.

Main technical parameters

Serial No.

Name

Unit

Data

TFLN36-12D

TFLRN36-12D

1

rated voltage

kV

12

12

2

rated frequency

Hz

50

50

3

rated current

A

630

125

4

load switch rated short-time withstand current / rated short-circuit duration

KA/S

20/3

20/3

earthing switch rated short-time withstand current / rated short-circuit duration

KA/S

20/2

20/2

5

rated peak tolerant current and rated short-circuit closing current

KA

50

125

6

rated breaking current

active load on-off current

A

630

630

closed-loop breaking current

A

630

630

5% rated active load breaking current

A

31.5

31.5

breaking cable charging current

A

10

10

breaking no-load transformer capacity

KVA

1250

1250

breaking transfer current

A

 

1700

expected short-circuit breaking current

KA

 

50

7

rated insulation level

1min power frequency withstand voltage interphase, ground / fracture

 

KV

42/48

42/48

lightning impulse withstand voltage interphase, ground / fracture

KV

75/85

75/85

8

mechanical life

 

2000

2000

9

SF6 rated pressure (20 ℃ pressure gauge)

Mpa

0.04~0.05

0.04~0.05

10

main loop resistance

μΩ

≤80

≤160

Opening and closing speed

m/s

≥2.6

≥2.6

opening and closing synchronization

 

≤6

≤6

SF6 even leakage rate

-

≤0.01

≤0.01

use environment

temperature 40 ℃ -15 ℃ altitude ≤ 1000m


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