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KLD-AP Series

Arc Protection System

Designed in accordance with the standards of electromagnetic compatibility and relay protection, it has strong anti-interference ability, continuous and comprehensive self-test function to have judgements through overcurrent and arc dual modes, which is easy for installation and use.

PRODUCT OVERVIEW

The arc light protection system protects the operators from injury and reduces the property damage when an arc fault occurs in a switchgear cabinet. When it occurs, the arc light explodes at 300m/s, destroying anything in its path. As long as there is an uninterrupted power in the system, the arc light will always exist in the system. To minimize the hazards of arclight, we need a safe, fast and effective arc light protection system.

KLD-AP series arc protection system can quickly detect arc faults and trip the circuit breakers. In order to ensure the reliability of the system, the arc protection system needs to meet two criterions to take actions: arc light and overcurrent. The system will send a trip command signal when it detects both arc light and current increments; and the system will send an alarm signal, not a trip command signal when it only detects arc light or current increments.

Double criterion ensures the reliability of the action taken by the whole set of equippment, and the output trip signal is fast （＜1ms）that can cross all other protection and delay, which is of great significance. The response time is calculated in milliseconds.

DOUBLE CRITERION

Breaking through the principle of conventional protection, it adopts two non-associated parameters (electric quantity and non electric quantity) of arc light and current as the criterion, which has a lower malfunction probability and higher reliability than other protection.

MODULAR COMBINATION

KLD-AP series arc light protection system can improve the performance for the whole system by adding current unit, arc light unit and other modular components. It can meet different protection needs of users and accommodate 256 monitoring points.

● Main control system

The core component of the arc light protection system is used to manage and control the whole arc light protection system. It can protect the switchgear when only arc light occurs, transfer the alarm information to the upper computer, and perform the monitoring and management functions.

● Current unit

It is used to detect the overcurrent signal of the power inlet cabinet to ensure the operability of the tripping logic of the arc-light protection system under different operating conditions.

● Arc light unit

The main control system can expand the detection points by connecting the arc light unit externally.

● Arc light detection unit

A passive arc-light detection unit dedicated to busbar protection is a light-sensing component for arc detection.

SYSTEM WIRING DIAGRAM

The main control system needs to be paired with the current unit and the arc light unit to protect the busbar from arc light.

The main control system and the arc light unit detect the arc light situation in different areas respectively. At the same time, the current unit collects the current signal, the arc light unit detects the arc light signal and transmits the signal to the main control system through optical fiber, so as to protect the busbar from arc light.

Technical Parameters

Main control system KLD-AP-MCU-H
Operating voltage	DC 12V
Respond time	＜1ms
Input	16 optical signal inlets (arc light detection unit)
	4 optical comprehensive signal inlets
	4 data transmission ports
Outputt	4 fast trip outlets 5A, 600VP
	6 trip outlets，Relay output5A，250VAC
	1 optical signal outlet
	RS485 Communication interface
Current unit KLD-AP-CTE-H
Input	5A、2A、1A(configurable)
	1 optical comprehensive signal inlet
	1 data transmission port
Outputt	1 optical signal outlet
Outputt	1 data transmission port
Overcurrent setting	50%In~500%In
Arc light unit KLD-AP-ACU-H
Input	10 optical signal inlets (Arc light detection unit)
	1 optical comprehensive signal inlet
	1 data transmission port
Outputt	1 optical signal outlet
Outputt	1 data transmission port
Illuminance setting	10kLux-50kLux
Arc light detection unit KLD-AP-AS-H
Maximum wiring distance	≤100m

S SeriesAutomatic fire extinguishing equippment KLD-FAE-ED1S
Protection space	≤3m3(others can be customized)
Release time	≤30s
Spray surface temperature	≤200℃
Thermal clearance	100mm at the nozzle≤75℃
Product insulation performance	≥20MΩ
Service life	10 years
Ambient temperature	-40℃~+125℃
EnvironmentHumidity	Maximum 95%RH (no condensing)
Altitude	＜1500 meters (higher altitude can be customized)
Protection degree	IP20(other requirements can be customized)
Starting mode	Thermal sensitive wire

Technical Parameters

Operating voltage：DC 12V

Respond time：＜1ms

Input：16 optical signal inlets (arc light detection unit)；4 optical comprehensive signal inlets；4 data transmission ports

Output：4 fast trip outlets 5A, 600VP；6 trip outlets，Relay output5A，250VAC；1 optical signal outlet；RS485 Communication interface

Input：5A、2A、1A(configurable)；1 optical comprehensive signal inlet；1 data transmission port

Output：1 optical signal outlet；1 data transmission port

Overcurrent setting：50%In~500%In

Input：10 optical signal inlets (Arc light detection unit);1 optical comprehensive signal inlet;1 data transmission port

Output：1 optical signal outlet；1 data transmission port

Illuminance setting：10kLux-50kLux

Maximum wiring distance：≤100m

Protection space：≤3m3(others can be customized)

Release time：≤30s

Spray surface temperature：≤200℃

Thermal clearance：100mm at the nozzle≤75℃

Product insulation performance：≥20MΩ

Service life：10 years

Ambient temperature：-40℃~+125℃

EnvironmentHumidity：Maximum 95%RH (no condensing)

Altitude：＜1500 meters (higher altitude can be customized)

Protection degree：IP20(other requirements can be customized)

Starting mode：Thermal sensitive wire

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PRODUCT OVERVIEW

DOUBLE CRITERION

MODULAR COMBINATION

● Main control system

● Current unit

● Arc light unit

● Arc light detection unit

SYSTEM WIRING DIAGRAM

The main control system needs to be paired with the current unit and the arc light unit to protect the busbar from arc light.

Main control system KLD-AP-MCU-H Fold Details

Current unit KLD-AP-CTE-H Fold Details

Arc light unit KLD-AP-ACU-H Fold Details

Arc light detection unit KLD-AP-AS-H Fold Details

S SeriesAutomatic fire extinguishing equippment KLD-FAE-ED1S Fold Details