Low-voltage valve arrester RVN-0,5

The arrester RVN-0.5 U1 is designed to protect against atmospheric overvoltage insulation of AC electrical equipment with a frequency of 50 and 60 Hz. Manufactured for networks with any neutral earthing system.

Specifications:
Mains voltage class, kV effective - 0.38;
Rated voltage, kV effective - 0.5;
Breakdown voltage at a frequency of 50 Hz in a dry state and in the rain, kV effective:
- not less than - 2.3;
- no more than - 2.7;
Pulse breakdown voltage at pre-discharge time from 2 to 20 μs, kV
- no more than - 4.3;
Remaining voltage at a wave of pulsed current 8/20 μs, kV, no more
- with an amplitude of 1000A - 2.5;
Rated discharge current, kA - 1.0;
Leakage current at a rectified voltage equal to the rated voltage, μA.
- no more than - 6.0;
Current carrying capacity:
- 20 current pulses with a wave of 16/40 μs, kA - 3.0;
- 20 current pulses with a wave of 3/8 ms, A - 35;
The length of the leakage path of the outer insulation, cm, - not less than - 2.6;
Permissible tension of wires, N, - not less than - 50;
Weight, kg - no more than - 0.25;

Symbol:
RVN O - XX M N U (T) 1
R - spark gap
B - valve
H - low voltage
O - using zinc oxide resistors
XX - rated voltage in kV
M - modernized
H - increased reliability and durability
U(T) - climatic version
1 accommodation category

Operating conditions of the arrester
Arresters RVN-0.5 U1 are designed for operation in areas with a temperate and tropical climate at ambient temperatures:
- from -45 to +40° С - for execution RVN-0.5 U1;
- from -10 to +50° С - for execution РВН-0,5 Т1.
Installation height above sea level is not more than 1000 m.

Relative humidity:
- at a temperature of +25° C up to 100%
- for the version RVN-0.5U1;
- at a temperature of +35° С up to 100%
- for the version РВН-0,5Т1.
Structurally, the arrester RVN-0.5 U1 for a voltage of 0.5 kV consists of a single spark gap and a working non-linear resistor enclosed in a sealed plastic case. The working resistor of the arresters RVN-0.5 U1 has a non-linear current-voltage characteristic. The resistor in the arresters RVN-0.5 is made of a special mass "Vilit-2", the resistor in the arresters RVNO-0.5 U1 is made on the basis of zinc oxide. The spark gap is formed by two shaped brass electrodes separated by an insulating gasket. Arresters RVN-0.5 are manufactured in accordance with TU U 31.2-22820979-002:2007.

We deliver orders throughout Ukraine, except temporarily occupied territories and war zones. Delivery is carried out by transport and logistics companies chosen by you.

The terms of delivery of the order depend on the availability of goods in the warehouse. If at the time of placing the order, all the selected goods are available, then we will deliver the order within a few days, depending on the remoteness of your region. If the ordered product is not in stock, the maximum delivery time of the order may be several weeks. But we try to deliver orders to customers as quickly as possible, and 90% of customer orders are shipped within the first almost immediately. In the event that part of the goods from your order did not arrive at the warehouse after the specified period during the discussion with the manager, we will definitely inform you about it.

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