DYPD-GL high-pressure switch cabinet experiment platform

The equipment is designed using high-voltage switch cabinet technology and requirements, and is divided into busbar compartments, circuit breaker compartments, cable compartments and low-voltage compartments, etc., lightning arresters, current transformers, grounding blades, vacuum circuit breakers, relay protection systems, etc. device. It is suitable for teaching and tr*ning of senior m*ntenance electricians in vocational colleges, technical schools, etc. on relay protection, power feed, etc. in high-voltage distribution systems.

2. Technical parameters:

Overall dimensions: 800×1660×2200mm

Working environment: temperature 0℃～50℃

Relative humidity 35～85% altitude＜4000m

3. Type of switch cabinet:
(1) Metal armored mid-mounted trolley switch cabinet
(2) Rated voltage: 6.3KV
(3) Maximum working voltage: 7.2KV
(4) Rated frequency: 50HZ
(5) M*n bus rated current: 1000A
4. Vacuum circuit breaker:
(1) Rated current 630A
(2) Rated breaking current 40KA
(3) Circuit breaker opening and closing time: closing time <75ms, opening time: <50ms
5. Overvoltage protector:

Zinc oxide, indoor three-phase combined type, rated voltage 7.6KV, nominal discharge current 5KA.
6. Spring operating mechanism:

It is integrated with the circuit breaker and its energy storage power supply is AC 220Vac. 2.6 Switchgear safety: with five prevention functions
7. Current transformer:

The voltage level is 6.3KV, the transformation ratio is 100/5, and the epoxy resin casting type is used.
8. Microcomputer protection device:

The power supply of the device is 220V (both AC and DC), frequency is 50HZ, LCD display, parameters can be set and modified on the panel of the device. The protection unit has basic feeder protection functions and communication interfaces.
9. High voltage switch cabinet secondary circuit:

The wires of the control loop are single-core 1.5mm2 copper wires, and the wires of the secondary circuit of the current transformer are single-core 2.5mm2 copper wires. The secondary circuit has basic control, monitoring, metering and protection functions. The low voltage electrical components of the control circuit are rated at 220Vac. There is lighting inside the cabinet.