Outdoor High Voltage Floor-standing Intelligent Boundary Circuit Breaker

Overview

The floor-standing demarcation switch integrated prepaid metering device is a product that changes the column high-voltage metering, switch, and control box into a cabinet-type structure. It is composed of an integrally cast dry high-voltage metering box and a ZW32F intelligent demarcation switch. The box is made of stainless steel or iron plate spray-coated material. This product is easy to install in structure and beautiful in appearance. The high-voltage part is isolated from the low-voltage meter room, and the high-voltage room cannot be opened when the equipment is energized. The door of the high-voltage room can only be opened in the case of a power outage, which is safe and reliable. The product occupies a small area and is a combination product used in living areas, industrial and mining enterprises and box-type transformers. Personnel can directly open the door to check the bottom of the meter and operate the switch on the spot. The transformer is cast in a fully enclosed epoxy resin vacuum, so aging problems are eliminated. The demarcation switch part uses a vacuum switch with zero-sequence and protection Current Transformers, and realizes zero-sequence, overcurrent, and quick-break protection with the intelligent controller, which can automatically cut off single-phase grounding faults and automatically isolate interphase short-circuit faults. Electricity safety for non-fault users.

This product has the FTU function to realize remote opening and closing of switches; it also has GPRS remote control function (see "Intelligent Controller Description" below for details).

Normal use conditions

a. Altitude not exceeding 3000m; Pollution level: IV.

b. Ambient air temperature: -40°C ~+40C; Daily temperature difference: 25C daily change.

c. Wind speed not exceeding 35m/s; Earthquake intensity not exceeding 8.

d. No flammable, explosive or chemically corrosive places.

Cited standards

GB763-90 "Heating of AC high-voltage electrical appliances during long-term working hours"

GB1207-1997 "Voltage transformer"

GB1208-1997 "Current transformer"

GB17201-1997 "Combined transformer"

GB4208-93 "Enclosure protection level"

GBJ63-90 "Design specification for electric measuring instruments of power equipment"

DL/T448-2000 "Management specification for electric energy metering devices"

DL/T566-95 "Technical conditions for voltage loss timer"

JB5777.2-91 "General technical conditions for control and relay protection panels (cabinets, units) for secondary circuits of power systems"

GB/T1 1022 "Common technology for High-voltage Switchgear and control equipment standards"

JB5777.3-91 " Basic test methods for control and relay protection panels (counters) for secondary circuits in power systems

DL/T593-96 Common ordering technical conditions for high-voltage switchgear

GB/1984 AC high-voltage Circuit breakers

GB/T1 1022 Common technical standards for high-voltage switchgear and control equipment standards

GB311.1 Insulation coordination of high-voltage power transmission and transformation equipment

GB/T16927.1 High voltage test technology part: General test requirements

GB3309 Mechanical test of high-voltage switchgear at room temperature

GB311.1-1997 Insulation coordination of high-voltage power transmission and transformation equipment

SD109 Verification procedures for electric energy metering devices

Appearance structure diagram