 I. Scope of Application
The GG-1A£¨F£©type anti-misoperation high-voltage switch cabinet is an indoor fixed high-voltage switch cabinet with an anti-misoperation interlocking device. It is applicable to the three-phase AC 50Hz single bus bar and single bus bar sectioning system to receive and distribute the electric energy with rated voltage 3-10kv in the network circuit.
An interlocking device is added to the cabinet on the basis of the original GG-1A type high-voltage switch cabinet. The cabinet meets the requirements of ¡°five-prevention¡± advanced by the Ministry of Energy, namely,
1. Prevent opening or closing the isolating switch with load;
2. Prevent entering into the energized compartment by accident;
3. Prevent false opening and closing of main switch;
4. Prevent hanging earth wire with power on;
5. Prevent closing the isolating switch with earth wire.
Since the cabinet is modified from the original GG-1A type high-voltage switch cabinet, the scope of application, cabinet structure, technical parameters and primary circuit scheme are basically same with those of the original cabinet.
II. Type & Meaning
III. Operating Environment
1. Ambient environment: indoor: -25¡æ to +40¡æ; storage and transportation at -30¡æ are allowed.
2. Altitude is not more than 1000m.
3. Relative humidity is not more than 90% (between £25¡æ and £«25¡æ).
4. Seismic intensity is not more than 8¡ã.
5. Places where there is no conducting dust enough to corrode metal or gas that damages insulation.
6. Places without fire and explosion risk;
7. Places without violent vibration and bumpiness and as well where the vertical inclination does not exceed 5¡ã.
IV. Technical Data of Switch Cabinet
Item |
Unit |
Parameter |
Rated voltage |
KV |
3¡¡6¡¡10 |
Maximum operating voltage |
KV |
3.6¡¡7.2¡¡11.5 |
Rated current |
A |
630¡¡1000¡¡1250¡¡2000¡¡3000 |
Dynamic current (peak value) |
KA |
40¡¡80 |
125 |
Short time withstand current |
KA |
16(4s)¡¡31.5(2s) |
40(4s) |
Overall dimension (width¡Ádepth ¡Á height) |
mm |
1200¡Á1225¡Á3100 |
1540¡Á1425¡Á3100 |
V. Technical data of ZN28A-10 series vacuum circuit breakers
Type |
ZN28A-10/ -20 |
ZN28A-10/-31.5 |
ZN28A-10/ -40 |
Rated voltage(KV) |
10 |
10 |
10 |
Maximum operating voltage(KV) |
11.5 |
11.5 |
11.5 |
Rated current (A) |
630£¬1000£¬1250 |
1250£¬1000£¬1600£¬2000 |
1600£¬2000£¬2500£¬3150 |
Rated breaking current (effective value) KA |
20 |
31.5 |
40 |
Rated making current (peak value)KA |
50 |
80 |
100 |
Rated short time withstand current
(effective value)KA |
20 |
31.5 |
40 |
Rated dynamic current (peak value) KA |
50 |
80 |
100 |
Time of thermostabilization£¨S£© |
4 |
4 |
4 |
Mechanical life (times) |
10000 |
10000 |
10000 |
Breaking times of rated short-circuit
breaking current (times) |
50 |
50 |
30 |
Arcing time (ms) |
¡Ü20 |
¡Ü20 |
¡Ü20 |
Mechanism equipped |
Electromagnetic operating mechanism |
CD10¢ñ |
CD10¢ò |
CD10¢ó |
Spring operating
mechanism |
CT19 |
CT19 |
CT19¢ò |
Making time |
S |
electromagnetic operating mechanism¡Ü0.20
Spring operating mechanism¡Ü0.15 |
electromagnetic operating mechanism¡Ü0.20
Spring operating mechanism¡Ü0.15 |
electromagnetic operating mechanism¡Ü0.20
Spring operating mechanism¡Ü0.15 |
Opening time |
¡Ü0.06 |
¡Ü0.06 |
¡Ü0.06 |
VI. The purchaser should supply following information for ordering.
1. Scheme of primary circuit;
2. Types and specifications of electric components in the switchgear;
3. Material quality and specifications of main bus bar and branch bus bar (according to the manufactory¡¯s standards if not supplied);
4. Coating color of the switchgear;
5. Name and quantity of spare parts;
6. Please negotiate with the manufacturer on the special requirements. |
