Purpose of the development: Device microprocessor protection, automation, control and management of connections 35-6 kV MRZL-05L AIAR.466452.001 (AIAR.466452.001 -01) is used on overhead and cable lines 35-6 kV voltage, working with isolated or compensated neutral and designed to perform: - Three-stage overcurrent protection; - Protection against earth fault current 3Io; - Automatic reclosing connection after you disconnect from the protection devices (reclosure single action); - Automatic frequency discharge (ACR) with CHAPV (via ET); - Breaker failure protection (CBFP); - Overcurrent protection the reverse order.

Recommended application field: Energy.

Technical characteristic: Power supply: - Operational voltage DC (154-255) B. The tolerance of the periodic component with amplitude up to 12% of the nominal value of the supply voltage and frequency from 100 to 600 Hz; - AC voltage with frequency of 50 Hz (60-245) V; - Circuit currents from phases A and C in the current range from 0.8 to 150 A. Maximum power consumption for power supply circuit: - In standby mode - no more than 3 W; - In the mode of issuing commands - no more than 5 watts. Maximum power consumption when the device is powered from the short-circuit currents of phases A and C: - In standby mode - no more than 5 VA - In the mode of issuing commands - no more than 8 VA. Functionality of the device is not affected by short-term, up to 500 ms, brownout to zero. When removing, and reducing the supply voltage, as well as power supply failure of any duration, followed by reduction in a device no false positives. The device can withstand a voltage of the operational DC reverse polarity. Time to set the working mode of not more than 0.35 seconds after the power is turned on. The device can withstand without damage to continuous operation: - At a current of up to 3 Ir in measuring current circuits; - At a current of up to 1.6 Ir in the food chain from the short-circuit currents. Power consumption in alternating current circuits with rated current: - Not more than 0.5 VA per phase (when unconnected supply circuits from short circuit currents); - Not more than 10 VA per phase (when the device is powered from the current transformers). The current one-second time withstand current circuits MRSA-05L - not less than 50 Ir. Minimum operating time of protection for voltage and current - not more than 0.04 seconds. Recovery time for current and voltage after the decline of the measured value is lower than the return - not more than 0.04 seconds. Accuracy of timing delay body - not more than 0.01 seconds at speeds up to 5 c and not more than 0.05 seconds at speeds between 5 to 25 c. Reset ratio launch of protection - not less than 0.9, unless otherwise stated.

The development stage readiness: Introduced in production

Description of the development:
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MRSA device-05L is available in two versions - with front connection and rear connection. Structurally the MRSA-05L is a bracket with universal blocks and closed housing. Attached to the housing front panel of the device, which is placed on the keyboard, USB-connector (for connecting to PC), 6 LED indicators display. MRSA device-05L rear connection AIAR.466452.001 is intended for installation in a cabinet. MRSA device-05L front connection AIAR.466452.001-01 intended for installation on a wall or panel. Operation is happening on the program recorded in the memory of the microcontroller.

corresponds technical description
Guarantees stable results getting

Possibility of transfer abroad:
Technological document's sale
Realization of finished commodity

Photo

Country Ukraine

For additional information turn to:
E-mail: gal@uintei.kiev.ua