Groza Instrument for Protective Equipment Parameters Measurement

Purpose

Groza is designed for testing and parameter measurement of excessive voltage and excess current protection equipment including:

• cross protection units;
• protective gears for wire communication equipment;
• protective gears for РРС equipment carrier links and base stations;
• current and voltage protective elements;
• excess voltage suppressors for under 0.4 kV mains.

Areas of Use

• operation of telecommunication equipment,  power plants and automatic equipment;
• electronics development and production;
• equipment test for electromagnetic effect tolerance.

The scope of supply includes controllable adapters rendering it possible to test different types of protective gears inclusive of multiple-pair ones.

For computer-assisted operation, measurement data archivation and composition of resulting documents are possible.

Technical Specifications

The device generates:

• test voltages within the range of 50...800 V DC (builds up in a saw-like manner at the rate of 100 V per second), max. load current 1mA;
• test current within the range of 10...200 mA (is set at a pitch of 10 mA) completed with <А2> self-contained supply adapter only.

The device is used for measuring:

• arresters discharge static voltage;
• varistors, stabilitrons and suppressors max. AC operation voltage;
• operating current of ceramic and polymer posistors and fuses;
• protective gears and units insertion resistance (both wires simultaneously using <А2> and <А4> adapters only).

General Specifications

• Power: mains adapter or a rechargeable battery;
• Operation temperature: +5^oС...+40^oС;
• Dimensions: 200x100x40 mm;
• Weight: 0.6 kg.