Combined Metal-clad AC Ring Main Unit Switchgear HXGN26-12(F)
HXGN26-12(F) Combined Metal-clad AC Ring Main Unit Switchgear ( hereafter referred to as Ring Main Unit ) are designed and manufactured by ourselves by importing foreign advanced technology and accord with the requirement of power supply in our country.
Through pattern test and long-run commissioning, it is up to IEC293 [Metal-clad AC Switchgear] standard and GB3906 [3-35KV Metal-clad AC Switchgear] standard as well as meet with reliable operation function of preventing false requested by Section Two. And the protection level is IP2X. As a new generation of HV Appliance required by urban power network reconstruction and construction, it is featured by small in size, ight in weight, easily and smoothly operated,safe in usage, convenient in maintenance etc.
Product Feature :
a. Main switch is FN26-12 SF6 load;
b. Three phases are end to end arrangement;
c. Two mechanisms: manual£¬manual and motor drive;
d. Enclosure: complete aluminum zinc coated steel plate;
e. Reliable 5 protection interlock system;
f. Easy control circuit connection between cabinets.
Type designation :
 Combined Metal-clad AC Ring Main Unit Switchgear 2.jpg)
Technical data :
|
Name
|
Unit
|
Data
|
|
Rated voltage
|
kV
|
12
|
|
Rated frequency
|
Hz
|
50
|
|
Rated current of main busbar
|
A
|
630
|
|
Rated short-time withstand current of main circuit and earthing circuit.
|
kA/s
|
25/2
|
|
Rated peak withstand current of main circuit and earthing circuit.
|
kA
|
63
|
|
Rated short-circuit making current of main circuit and earthing circuit.
|
kA
|
63
|
|
Load switch full capacity breaking times
|
times
|
100
|
|
Fuse breaking current
|
kA
|
31.5 40
|
|
Mechanical endurance
|
times
|
10000
|
|
1min power frequency withstand voltage(r.m.s) phase to phase, phase to earth/isolating distance
|
kA
|
42/48
|
|
Lightning impulse withstand voltage (peak)phase to phase, phase to earth/ isolating distance
|
kV
|
75/85
|
|
Secondary circuit 1min power frequency withstand voltage
|
kV
|
2
|
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