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Measuring and testing equipments for substations

Measuring and testing equipments for substations
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Measuring and testing equipments for substations

Measuring and testing equipments for substations GETEST Indirect earth contact simulator· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · P6-4 CR Current injection relay tester· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · P6-6 TL-5 Earth resistance meter · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·...

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Measuring and testing equipments for substations - 3

Measuring and testing equipments for substations Royal Decree RD 3275/1982 on the technical conditions and safety guarantees in electrical power plants and substations is still in force. The said regulations establish the compulsory maintenance contracts required for the said installations before their commissioning. The maintenance activities in installations regulated by the regulations mentioned above can only be carried out by companies registered in the register of high-voltage installation maintenance companies (REMAT) of the Territorial Industry and Energy Service where they carry...

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Measuring and testing equipments for substations - 4

Indirect earth contact simulator The MPC-5/50 GETEST unit can be used to measure the voltages between ground points (forward voltage) or earth and conductive parts (contact voltage) when there are leakage currents through earth. In Spain, these measurements are compulsory in substations and distribution centres, in compliance with MIE-RAT-13, BOE 183 of 01/08/94. Power supply Maximum current injected Depending on the load and limited to 100 A 5 A with 120 Ω maximum 50 A with 12 Ω maximum The tests are carried out by connecting the current generation system between different points that are...

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Indirect earth contact simulator References Description Indirect earth contact simulator, from 5 ... 50 A In addition to the MPC-5/50 GETEST, this product includes: 1 PDA, 3 cable reels, Two 25 kg weights and a terrain resistance measurement gauge. Connections Connections and front elements Measurement connection Circuit breaker 20 A D curve Power supply connector IEC C20 Bluetooth link indicator Current injection connections

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Current injection relay tester Description The CR-50, CR-100 and CR-250 units include specially designed current generation systems that can check the current / time trigger curve of automatic switches and indirect protection relays. Its operation principle is based on the injection of an alternating current that can be adjusted throughout the circuit being tested with a short-circuit cable loop. The connection of an auxiliary contact of the switch being tested can be used to measure the trip time for each current selected. The test is easily carried out with a start-stop control. An...

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Measuring and testing equipments for substations - 7

The MH-10 digital microhmmeter is a portable instrument controlled by a microprocessor and it is used as a high precision reading unit that can measure very low resistances of circuit breaker contacts, keys, conductive bars, transformer coils and motors, weld points, etc., with test currents ranging from 1 mA to 10 A. Power supply characteristics The MH-10 microhmmeter operates with the 4-arm method (Kelvin bridge), so that it avoids the effects of resistance on injection cables. The test current can be adjusted by the operator and the values are obtained by comparing them with highly...

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Measuring and testing equipments for substations - 8

The MH-100e digital microhmmeter is a portable instrument controlled by a microprocessor and it is used as a high precision reading unit that can measure very low resistances of circuit breaker contacts, keys, conductive bars, transformer coils and motors, weld points, etc., with test currents ranging from 1 mA to 100 A. Power supply characteristics Test current 1 mA, 10 mA, 100 mA, 1 A, 10 A, 100 A. Each current can be adjusted between 0 and 100% of its nominal value The MH-100e microhmmeter operates with the 4-arm method, so that it avoids the effects of resistance on injection cables....

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Description The MD and MI portable megohmmeters have been specially designed to measure insulating resistances with values of TΩ, using a test voltage that can be selected by the user. Its highly reliable technology enables the intake of accurate measurements and easy reading of insulated low and medium voltage electrical systems, transformers, motors, cables , equipment and home installations, distribution grids, etc. It incorporates a rechargeable internal battery, but it can also be powered from the mains. Power supply characteristics Rechargeable battery Battery charger Short-circuit...

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