Product service
Compact gas insulated metal enclosed switchgear
Hearymax-12
Hearymax-12V1250-31-5
- Description
- Data Sheet
Product Introduction
Hearymax-12 is a type of compact fixed air insulated ring network series of 12KV, three-phase AC 50HZ, single bus bar and single bus bar sub-system of a new generation of miniaturization, modular new electrical switching equipment. It is applicable to the industrial and residents with cable ring network and distribution network terminal’s project. As the acceptance and distribution of electrical energy, especially for urban residential distribution, it is widely used in small secondary substation, small substation, cable branch cabinet, modular substation, industrial and mining shopping malls, airport, subway, wind power , hospitals, stadium, railway, tunnel and other sites. The product has the characteristics of simple structure, flexible operation, reliable interlocking and easy installation. For different applications and users, the product can provide satisfactory technical solutions to meet the market and apply to the power grid’s requirements.
Model Details
Conditions of use
Max. temperature + 45 ℃
Mini. temperature -25 ℃
Maximum temperature (24 hours on average) + 35 ℃
Maximum average relative humidity (24 hours) ≤ 95%
Sea Level ≤ 3000 meters
Seismic Intensity: 8
Protection Grade: switch cabinet shell IP4X
No risk of corrosive combustible gas, water vapor and other obvious pollution.
Ordering Instruction
The information need to be provided as below which ordering:
A. Product model, specification, quantity
B. Layout
C. Name and quality of spare parts
D. Foundation layout need to be provided if place the order
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Hearymax-12 Series
V
LS
SF
Items
Unit
Parameters
Rated voltage Ur
kV
12
Rated frequency fr
Hz
50
Rated current lr
A
1250
1250
125*
insulation level
1min Rated instantaneous power-frequency withstand voltage ud (Main circuit)
-- Phase to phase, phase to earth
kV
42
-- Isolated fracture
kV
48
Rated lightning impulse withstand voltage up
-- Phase to phase, phase to earth
kV
75
-- Isolated fracture
kV
85
1min Rated instantaneous power-frequency withstand voltage ud
-- Auxiliary circuit
kV
2
Rated short-time withstand current lk
Main circuit / Grounding switch tk = 4s
kA
31.5
25
Earth circuit tk = 4s
kA
27.4
21.7
Rated peak withstand current lp
Main circuit / Grounding switch
kA
80
63
Earth circuit
kA
68.5
54.6
Rated short-circuit closing current lma
kA
80
63
Rated short-circuit breaking current lsc
kA
31.5
31.5*
Rated transfer current
A
3150
Operation sequence
0-0.3s-00-180s-00
The amount of short circuit current breaking times
30
Mechanical life (circuit breaker / load switch)
10000
Mechanical life (Three-station disconnectors)
5000
Level of protection
IP4X
Indicates that it is dependent or limited to high voltage fuses
