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Permanent magnet outdoor

Product Features

  • International creative, double contact surfaces, closed magnetic circuit permanent magnet operating mechanism, long service life, and high reliability;
  • enabling a variety of functions including measurement, protection and control, and telemetry, remote communication, remote adjustment, and remote control;
  • Powerful communications processing functions:

    RS232 interface: Achieve local parameter settings and programming; Optical MODEM module: easy to achieve distribution network automation system networking; GSM, GPRS/CDMA modules: achieve location decentralized terminal equipment, simple and reliable, and networking operation;

  • Reliable isolation switch and the circuit breaker body form into mechanical interlock, featuring obvious fracture, easy maintenance and safety.
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Structural Characteristics

  • Upon new compact design, the circuit breakers are in totally enclosed structure, unique interrupter packaging design, and excellent sealing, which helps improve the resistance against moisture and condensation, and suitable for use in hot and humid regions.
  • The circuit breakers are equipped with intelligent switch controller, and provide protection features including three-phase current protection, zero-sequence protection, reclosing, and instantaneous trip protection.
  • The circuit breaker shall be TYSEN-SAE series permanent magnet actuator. Its uniqueness lies in that the retention work at the mechanism end position is realized by the permanent magnetism, replacing the traditional mechanical tripping and locking devices.
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Main Specifications and Technical Parameters

Main Technical Parameters of Circuit Breaker

No. Description Unit Parameters
1 Rated voltage kV 12
2 1min rated power frequency withstand voltage kV Phase-to-phase, phase-to-ground 42 / fracture 48
3 Rated lightning impulse withstand voltage kV Phase-to-phase, phase-to-ground 75 / fracture 85
4 Rated current A 630、1250
5 Rated frequency Hz 50
6 Rated short-circuit breaking current kA 20
7 Rated short-circuit making current (peak) kA 50
8 Rated peak withstand current kA 50
9 (4S) Rated short-time withstand current kA 20
10 Rated operating sequence   0.3s　180s
0——CO——CO
11 Closing time ms 20~60
12 Opening time ms 20~55
13 Breaking operations of rated short-circuit breaking current Number of cycles 30
14 Mechanical life Number of cycles 10000
15 Secondary circuit 1min power frequency withstand voltage V 2000
16 Rated closing operating voltage V AC DC 220 110
17 Rated opening operating voltage V AC DC 220 110

Main Mechanical Characteristics of Circuit Breaker

No. Description Unit Parameters
1 Contact travel mm 9±1
2 Contact over-travel mm 2.5±0.5
3 Center distance between phases mm 340±1.5
4 Bouncing time of contactor closed ms ≤2
5 Time interval between opening of first and last phase of three phase circuit-breaker ms ≤2
6 Average opening speed m/s 1.2±0.2
7 Average closing speed m/s 0.6±0.2
8 Phase-wise conductive loop resistance μΩ ≤80

Main Technical Parameters for Switch Disconnector

No. Description Unit Parameters
1 Rated voltage kV 12
2 Rated current kA 630、1250
3 4S Rated short-time withstand voltage (max) kA 20
4 Rated peak withstand current kA 40、50
5 1min power frequency withstand voltage Phase-to-ground and phase-to-phase kV 42
Fracture kV 48
6 Loop resistance (from circuit-breaker patch panel to switch disconnector inlet panel) μΩ ≤120
7 Center displacement run-out of three-phase isolator when closing mm ≤2
8 Tolerance of synchronous time between opening of first and last phase of three-phase isolator mm ≤2
9 Conductive part-to-ground insulation distance mm ≥160
10 Fracture spacing mm ≥200
11 Mass kg 30

Remarks: Rated short-time withstand current varies with the transformer ratio.
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