General Description:
Hai Bang 12kV Vacuum Contactor-Fuse Combination unit –
HCR-12J(D)Y/D200-50T are applicable on AC 50-60Hz power systems,
rated voltage 12kV, rated current 200A. HCR-7.2J(D)Y/D315-50T is
another type of Vacuum Contactor-Fuse Combination unit, of which
the rated voltage is 7.2kV and rated current is 315A.
The Vacuum Contactor-Fuse Combination unit can be installed in the
switch cabinet to form an F-C circuit and used in conjunction with
a comprehensive protector. The Vacuum Contactor Unit combines a
high-voltage fuse capable of breaking a wide range of short-circuit
fault currents with a vacuum contactor that can be frequently
operated. It can be used for frequent starting of motors and
frequent switching of transformers and capacitors.
Vacuum Contactor-Fuse Combination unit is widely used in power
systems such as power plants, chemicals, coal mines, metallurgy,
ports and wharfs. It can be used by power plants and industrial and
mining enterprises to switch on and off AC high-voltage motors,
transformers, induction furnaces and other loads, and has the
function of short-circuit protection. The trolley at the bottom of
the 12kV Vacuum Contactor-Fuse Combination unit can be easily moved
out of the control cabinet. The altitude of the environment where
the product is used does not exceed 1000 meters above sea level.
Technical Data:
Name | Unit | Value | |
Main circuit | Rated working voltage (Ue) | kV | 7.2 | 12 |
| Rated working current (Ie)(Depends on the fuse) | A | ≤315 | ≤200 |
| Rated frequency (fr) | Hz | 50~60 |
| Rated expected short-circuit breaking current (effective value) | kA | ≤50 |
| Rated expected short-circuit making current (peak value) | kA | 125 |
| Power frequency withstand voltage | Wiring terminal to earth | kV | 32 | 42 |
Vacuum breaks | kV | 32 | 42 |
| Lightening impulse withstand voltage | kV | 60 | 75 |
Control circuit | Rated voltage (Us) | V | AC 110/220/380 |
| DC 110/220 |
| Rated power (Ps)electric holding | VA | ≤1000/100 (absorbing/holding) |
| Rated power (Ps) mechanical holding | VA | ≤900/600 (Closing/opening) |
Auxiliary circuit | Form | | (6a+6b) |
Rated value | | AC 380V/5A |
Control circuit, auxiliary circuit to earth power frequency
withstand voltage | kV | 2 |
Rated operating frequency | Long-term | time/h | 300 |
Short-term | time/h | 600 |
Mechanical endurance | 10000 times | 30 |
Electrical endurance | 10000 times | 10(AC-3) |
Mechanical characteristics | Closing time | ms | ≤150 |
| 3-phase asynchronous time | ms | ≤3 |
| Original opening time | ms | ≤150(electric holding), ≤60(mechanical holding) |
| Closing tripping | ms | ≤4 |
Remark:
1. Rated control voltage can be made according to customer’s
requirements.
2. For the mechanical holding type, the locking device needs to be
replaced every 100,000 times.
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