arc light protection system

Product Description

1. General

The THT-APS arc light integrated protection system (time of removing failure is *0~*0ms) realizes *0ms actuation time compared with that of traditional protection actuation, which effectively restricts the arc light failure in the initial stage.

2. This product is mainly applied to:

2.1 Bus protection in the medium and low voltage switchgear of various power stations, transformer substations, distribution substations and box-type substations systems.

2.2 Connector in the cable chamber of the feeder cabinet, and breaker cabinet protection;

2.3 Rectification cabinet protection;

2.4 Other equipment with easy occurrence of arc light, such as high voltage electrical machine junction box protection.

3. Product Composition

THT-APS-MU Primary Unit

THT-APS-AC Arc Collection Unit

THT-APS-FU Feeder Protection Unit

THT-APS-AS Arc sensor

THT-APS-EC Optical fiber

4. Product Characteristics

4.1 The primary unit can carry **-way arc sensor independently

4.2 Equipped with an independent background system;

4.3 Optical looped network design

4.4 Functions of failure recording, failure location and current measurement;

4.5Large screen liquid crystal display

4.6Computing time is shorter than **8μs;

5. Primary Technical Parameters

Device power supply

Rated voltage: AC*****5V/DC******0V

Device power consumption: 5W

Output contact capacity: AC**0V 8A/DC*0V5A

Ambient temperature

Allowable operating temperature/storage temperature:**0°C ~ **5°C/**5°C〜**0°C

Actuation time

Device output time: <4ms

Arc light detection range: **0Lux~**0Klux

Electromagnetic compatibility indicator

Electrostatic discharge noise immunity: ±*5kV

RF electromagnetic field radiation noise immunity: *0MHz~lGHz *0V/m

Electric rapid transient pulse group noise immunity: 4kV/2.5kHz

Surge noise immunity: wire-ground ±4kV; wire-wire ±2kV

RF transmission noise immunity:**0kHz~*0MHz; level: *0V

Power frequency magnetic field noise immunity: continuous magnetic field **0A/m, short-time magnetic field **0A/m, V grade

Pulsed magnet field noise immunity: **0A/m

Damped oscillation magnetic field noise immunity: *0A/m, VI grade

Voltage sag, short-time interruption and voltage variation noise immunity: voltage sag and short-time interruption: 0% UT; voltage variation: *0% UT

Oscillatory wave noise immunity: **0kHz 1MHz; common module: 2.5kV; difference module: 1kV

Power frequency noise immunity: A grade; difference module: **0V; common module: **0V;

Conducted emission limit: **0kHz~*0MHz

Radiated emission limit: *0MHz〜1GHz <*7uV/m

Harmonic current emission limit: A grade, *5 times harmonic wave

Voltage fluctuation and flicker: fit IEC********3

AC circuit

Rated current: 1A/5A

Rated frequency: *5~*5Hz

Watt consumption: <5VA

Actuation setting

Phase current: 0.5~*0In 
Accuracy: ±5%
Communication: RS**5 Modbus RTU

7. Ordering Instruction

7.1 Bus type arc protection:

Quantity of switch cabinets;

Quantity of incoming cabinets;

Rated current of the device, namely, the secondary is 1A or 5A.

Primary system diagram

7.2 Feeder type arc protection:

Quantity of coil-out to be protected;

Rated current of the device, namely, the secondary is 1A or 5A.

Primary system diagram