- BrandООО ПК «Электромеханический завод»
- Country of manufactureRussia
- The nominal value of climatic factors is according to GOST 15150 - 69.
- Height above sea level - no more than 2000 m.
- The degree of pollution of the atmosphere I . . . III.
- Group of operating conditions in terms of the impact of mechanical factors of the external environment - M3
- according to GOST 17516.1 - 90.
- Safety requirements in accordance with GOST 12.2.0014 - 75.
The high - voltage cabinet (SHV) is an all - metal, sealed cabinet with an opening front door. On the side walls of the case, there are two doors for access and service. The bushings are installed in the roof of the cabinet and the main circuits are connected to them.
In the high voltage cabinet, current and voltage are converted into measuring signals. Measuring voltage transformers (VT) and current transformers (CT) are used, the number of transformers depends on the measurement scheme: 2CT and 2TN; 2ТТ and 3ТН; 3ТТ and 3ТН. Typical transformers are used as measuring transformers: TOL10 - 1 - 2, 3NOLP - 6 (10) or NOLP - 6 (10). The customer can also choose other types of transformers that meet the requirements of GOST and are registered in the register of measuring instruments. Additional windings of transformers are used for their own needs (for heating the control cabinet, operational power supply of modems, etc. ). The connecting cable is introduced through a sealed lead - in and is connected to ШВ with a terminal block of clamps. Drain holes are provided at the bottom of the case for draining condensate.
The metering and data transmission cabinet (ШУ) is designed for electricity metering, collection of information and transmission to devices for collecting and transmitting data or directly to control rooms. Data transmission is carried out over radio channels using a radio modem, over existing GSM networks using GSM (GPRS) modems, or over fiber - optic communication lines (FOCL) using fiber - optic modems. Structurally, it is an all - metal drawer with an opening front door. The control room is equipped with digital microprocessor meters from leading Russian manufacturers. The voltage and current circuits are connected through a sealed bushing test block. Auxiliary circuits are connected through the terminal block.
Installation of ShU is carried out on the same overhead line support as ShV. To connect the ShU to the ShV, a connecting cable up to 5 m, laid in a metal hose, is used.
Surge arresters of the type OPN - RS - X / X UHL1 are used to protect equipment and increase noise immunity during switching and atmospheric overvoltage.