FZN25-12 indoor HV vacuum load break switch a 3-phase AC 50Hz 12kV indoor switch equipment..
♦ Operating mechanism: spring operating mechanism, manual type and electrical type available;
♦ Operation type: right operati on an d left operation;
♦ Operation direction: left operation, right operation;
♦ Application: indoor 12kv switchgear.
Environmental Conditions
♦ Ambient temperature: -25°C~+40°C;
♦ Altitude:
♦ Relative humidity: daily average
♦ Earthquake intensity:
♦ Pollution grade: II;
♦ Installation place without fire, explosion, chemical corrosion and serious vibration.
Technical Parameters
♦ Main technical parameters
NO | Item | Unit | FZN25-12LT 630-20 | FZRN25-12D/T 200-31.5 | |
1 | Rated voltage | kV | 12 | 12 | |
2 | Rated frequency | Hz | 50 | 50 | |
3 | Rated current | A | 630 | 200 | |
4 | 1min power frequency withstand voltage (Phase to earth, | Phase-to-earth, phase-to-phase | kV | 42 | 42 |
between poles, open contacts) | Isolating fracture | 48 | 48 | ||
5 | Rated lightning impulse withstand voltage (Phase to | Phase-to-earth, phase-to-phase | kV | 75 | 75 |
earth, between poles, open contacts) | Isolating fracture | 85 | 85 | ||
6 | Rated short time withstand current (thermal stability current) | Load break switch | kA | 20 | |
7 | Rated short circuit duration ( thermal stability time) | Load break switch | s | 4 | |
8 | Rated short circuit making current (peak) | kA | 50 | ||
9 | Rated active load breaking current | A | 630 | ||
10 | Rated loop breaking current | 630 | |||
11 | Rated cable charging current | 10 | |||
12 | Rated no-load transformer capacity | kVA | 1600 | 1600 | |
13 | Rated short circuit breaking current (limit current fuse) | kA | 31.5 | ||
14 | Rated breaking transfer current | A | 2000 | ||
15 | Fuse model | SDLAJ-12 SFLZJ-12 | |||
16 | Striker output energy | J | 2-5 |
NO | Item | Unit | FZN25-12D/T 630-20 | FZRN25-12D/T 200-31.5 |
17 | Auxiliary circuit rated voltage | IN | ^110 ^220 | ^110 ^220 |
18 | Earth switch rated short time withstand current | kA | 20 | 20 |
19 | Earth switch rated peak short circuit duration | S | 2 | 2 |
20 | Earth switch rated peak withstand current | kA | 50 | 50 |
twenty one | Rated short making current | kA | 50 | 80(prospective peak value) |
twenty two | Mechanical life | times | 10000 | 10000 |
♦ Mechanical property
NO | Item | Unit | Value | |
FZN25-12 D/ T630 20 | FZRN25-12 D/T200-31.5 | |||
1 | Air clearance between charged parts and to earth | mm | >125 | |
2 | Conducting tube insert into fixed contact holder depth | mm | >18 | |
3 | Vacuum interrupter open distance | mm | 600+1 | |
4 | Vacuum interrupter contact spring compression length | mm | 20+1 | |
5 | Vacuum interrupter average closing speed | m/s | 0.6±0.2 | |
6 | Vacuum interrupter average opening speed | m/s | 1.0±0.2 | |
7 | Closing bouncing time | ms |
| |
8 | Three phase closing and opening synchronism | ms |
| |
9 | Main circuit resistance | rQ |
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10 | Manual operation+'on maximum torque | n.m |
| |
11 | Fuse trigger opening time | ms | - | 30-40 |
12 | Release trigger opening time | ms | 40-45 |
♦ Energy storage motor parameters
Model | Rated voltage V | Rated current A | Rated power W | Normal working voltage range |
LLZY-CJ01B8 | AC/DC220 | 0.7 | 70 | 85%-110% rated |
66ZY-CJ028 | AC/DC110 | 1.5 | voltage |
General Structure Drawing and Installation Size (unit: mm)
♦ FZRN25 right operation
♦ FZRN25 left operation
♦ FZN25 right operation
♦ FZN25 left operation