Devices of protection against arc short circuits of PC40-ARC

Products from producer

In stock

Price:

0.02 EUR

Shipping:

Customer pickup,
Courier
In detail

Seller

RZA Sistemz, OOO

Ukraine, Kiev
(View map)

Call

Products of other enterprises

Description

Devices of protection against arc short circuits of PC40-ARC

Devices of arc protection PC40-ARC 01, PD-01M (single-channel) and PC40-ARC 02, PD-02M (two-channel) are intended for the accelerated shutdown of section of the complete distributing devices (CDD) of 6-35 kV at emergence in them electric arc short circuit by impact on introduction and section switches.

Devices of the arc zashchityrs40-ARC, PD allow to organize the simple and reliable scheme of arc protection (see the description)
As a sensitive element the fiber-optical sensors (FOS) are used. Sensitivity of WATERS to current of arc short circuit on length of WATERS (700±50) mm and at distance (500±50) mm from an arch, makes no more than 500 And.

On the basis of the above-stated devices creation of local arc protection, and also ensuring the centralized control of a condition of protection and integrity of fiber-optical sensors, and also managements on a local network and through discrete entrances is possible. The scheme of arc protection on the basis of our devices can rather just be included in the general system of protection at reconstruction of substation or RP.

The system of arc protection can also be realized, connecting external sensors (dry contact) to discrete entrances of microprocessor PC83 terminals and appointing respectively their action from the menu of the device. At the same time it is necessary to choose the corresponding execution of the terminal with enough discrete entrances.

Main functions of the PC40-ARC device:
• impact on introduction and section switches at emergence of electric arc short circuit;
• formation of an emergency signal at emergence of electric arc short circuit and to lack of a signal of external start-up;
• formation of an emergency signal in the absence of food;
• automatic control of WATERS and formation of an emergency signal at their break;
• indication of a condition of the device.

In the device of arc protection PC40-Arkispolzuyutsya the fiber-optical sensors (FOS) which integrity is constantly controlled.

Technical characteristics

Name	Value
Tension food of products, constant/variable, In	from 80 to 250
Power consumption of, no more, VA	10
Tension of a discrete signal "PERMISSION" constant/variable, In	220±20% 130±20% 75±20%
Current in chains of signals "PERMISSION" and "DUMPING", no more, ma	5
Signal tension "DUMPING", constant/variable, In	220±20%
Product available time for work after giving of the feeding tension, no more, than a ms	500
Range of working ambient temperatures, °C	from minus 30 to plus 45
Relative humidity of environment at a temperature + 25 °C, no more, than a %	98
Range of atmospheric pressure, mm Hg.	from 450 to 800
Sensitivity of WATERS to current of arc short circuit on length of WATERS (700±50) mm and at distance (500±50) mm from an arch, no more, And	500

Characteristics of the input channels

Name	Value
Number of the fiber-optical sensors (FOS), piece.	1
Length of an optical fiber of WATERS, no more, than a m	15 *
Interval of poll of WATERS, min.	60±5%
Time of poll of WATERS, ms	15±0,5
Time of the analysis of a condition of WATERS, ms	10±1
Time of the analysis of a condition of a discrete entrance PERMISSION, ms	5±1
Time of the analysis of a condition of an external signal DUMPING, no more, than a ms	20

* increase up to 25 m on demand is possible.
Characteristics of the output channels

Name	Value
Number of executive relays, piece.	1
Number of groups of normally opened contacts, piece.	1
The switched tension of direct/alternating current executive relays, no more, In	250
Disconnection of a direct current executive relays (at 250 V), no more, And	0,2
Relay reaction time, no more, than a ms	40
Time of preservation of the worked condition of output relays in the absence of food, not less, with	0,15
Time of preservation of a possibility of operation after shutdown of the feeding tension, not less, with	1

Characteristics of the alarm channel

Name	Value
Number of alarm relays, piece.	1
Number of groups of normally opened contacts, piece.	1
The switched tension of direct/alternating current the alarm relay, no more, In	250
The alternating current switched by the alarm relay short circuit / disconnection (at 250 V), no more, And	1
Relay reaction time, no more, than a ms	40
Time of preservation of the worked condition of output relays in the absence of food, not less, with	0,15
Time of preservation of a possibility of operation after shutdown of the feeding tension, not less, with	1

The relay of the output channel of a product works at simultaneous influence of two external factors:
• impact on optical sensors of the light stream which arose at emergence of the electric arch caused by currents of short circuit in controlled object;
• to giving on a discrete entrance of a signal "PERMISSION" from starting relays of the maximum current or the minimum tension, etc.

The alarm relay closes NZ contact:
• at operation of the relay of one of channels;
• through 3 from later registration of a light signal of an arch on one of WATERS channels and lack of a signal "PERMISSION" (operation of the relay of the output channel is blocked);
• at detection of automatic control of lack of serviceability of WATERS by system (operation of the relay of the output channel is blocked);
• in case of lack of the feeding tension.

You can load detailed technical information from "Library" undressed.

Devices of arc protection (protection against arc short circuits) PD-01M (single-channel) and PD-02M (two-channel) are intended for the accelerated shutdown of section of the complete distributing devices (CDD) of 6-10 kV at emergence in them electric arc short circuit by impact on introduction and section switches with a ban of action of APV and AVR.
As a sensitive element the fiber-optical sensors (FOS) are used.

Functions:
formation of a signal of impact on introduction and section switches with a ban of action of APV and AVR at emergence of electric arc short circuit.

The principle of work is based on simultaneous influence of two external factors:
1) the light stream in WATERS (length to 70 m) arising at emergence of the electric arch caused by currents of short circuit from 500 A in a cell of CREWE;
2) decrease in the feeding tension to value 0,5un or short circuit of the external contact connected to device clips (for example, from the external relay of tension).

Power supply of devices of arc protection of PD-01M/PD-02M is carried out from the built-in stabilized power supply unit providing preservation of operability of the device for the period of not less than 3 from later shutdown of a power line.
In the PD-01M device there is a possibility of regulation of tension of operation of U
Essential difference of the PD-02M device from PD-01M is that each his photoreception knot affects the separate output relay (3 contacts), and also what PD-02M is intended for simultaneous connection of two fiber-optical sensors controlling, for example, different sections of CREWE.

The PD-02M device has the increased time of preservation of a possibility of operation - 2 with and the expanded range of supply voltage (120÷300) Century.

Overall dimensions of devices:

Scheme of laying of the fiber-optical sensor:

Contact the seller

Devices of protection against arc short circuits of PC40-ARC