What are the equipment components of 3 5KV substation? 5

The primary equipment of 35kV substation generally includes transformer DU, voltage transformer, current transformer, isolation switch, DAO circuit breaker, grounding switch, busbar, capacitor, reactor, discharge coil, lightning arrester, combined electrical appliances (combined transformer), switch cabinet and so on.

Secondary equipment is mainly composed of protection, measurement, measurement, communication, remote control, remote vision, five defenses, etc., and there are many subdivisions.

In addition to the above-mentioned equipment, the substation also needs houses, fire protection systems and tools, safety tools, tools, etc.

1. Transformer: the function of transforming voltage converts AC high voltage into low voltage (step-down transformer). (There are also those that change low pressure to high pressure called step-up change).

2. Circuit breaker: cut off and turn on the no-load current and load current in the high-voltage circuit under normal conditions, cooperate with the protection device and automatic device in the event of a system failure, quickly cut off the fault current, prevent the expansion of the accident, and ensure the safe operation of the system.

3. Disconnecting switch: The disconnecting switch for the electrical equipment that needs to be overhauled is reliably isolated from the live part of the power grid, so that the overhauled electrical equipment has an obvious disconnection point with the power supply to ensure the safety of the maintenance work. Change the operation mode to reverse the operation, such as in the circuit of double bus operation, the disconnector can be used to switch the equipment or line from one group of buses to another set of buses.

Turn on and off low-current circuits.

4. Lightning rod: prevent direct lightning strikes, so that the electrical equipment (substation equipment) within their protection range is less likely to be bypassed by direct lightning strikes.

5. Arrester: Through the action of parallel discharge gap or nonlinear resistance, the intrusion flow wave is cut to reduce the overvoltage amplitude of the protected equipment. Arresters can be used to protect against atmospheric overvoltages and operating overvoltages.

6. Capacitors: improve the power factor of the power grid and improve the voltage quality.

7. Current transformer: a converter device that turns a large current into a small current for the application of instruments and protection devices.

8. Voltage transformer: transformer equipment that turns high voltage into low voltage for instrumentation and protection device applications.

Supplement: Carrier communication system High Frequency Blocking Coupling capacitors.

I don't know if I'm satisfied.

The main equipment of the substation is the transformer KV; Each voltage level has voltage transformer, current transformer; In addition, there are load switches, opening and closing operating mechanisms, isolation switches, bus ties, compensation capacitors, relay protection devices, metering devices, lightning arresters, lightning rods, and generally DC operating systems.

Main transformer, station transformer, circuit breaker, disconnecting switch, capacitor, current transformer, voltage transformer, lightning arrester, lightning rod, distribution cabinet.

1. Electrical equipment used in 35kV power distribution device in substation: main transformer, circuit breaker, isolation switch, current transformer, voltage transformer, lightning arrester, grounding switch, conductor, insulator, 35kV line bus and equipment structure, cable;

2. Some electrical equipment of substation power distribution system: 10kV high-voltage switchgear, cables;

3. Electrical equipment of substation station power system: station transformer, low-voltage switchgear, distribution box, cable;

4. Substation DC system: battery pack and charger, cable;

5. Electrical equipment of substation control machine protection system: all kinds of control panels, protection panels, operation panels, fire alarm systems and control systems, cables;

6. Lightning protection and grounding part: lightning rod, lightning belt, grounding device and grounding network;

7. Substation miscellaneous: lighting system, communication system, telecontrol system, dispatching system, access control system.

Main transformer, station transformer, power conversion.

Circuit breaker, with secondary protection to remove faults.

Disconnectors, maintenance lines, circuit breakers, busbars, etc. are used to provide obvious breaks in the circuit to ensure the safety of maintenance personnel.

Capacitors to compensate for the reactive power loss of the main transformer.

Lightning arrester, lightning rod, lightning protection (lightning overvoltage).

Fuses are used to cut off transformer faults at stations.

Voltage transformer, inductive bus voltage is used for secondary measurement, metering protection.

Current transformer, acting as the same voltage transformer.

Almost.

To add: the main ones are low-voltage capacitors and low-voltage reactors. This is very important for balancing the reactive power in the station.

The role is not to say: only to tell you about some primary equipment: transformers, wires, voltage transformers, current transformers, circuit breakers, switch cabinets, isolation switches, etc.

Busbars, transformers, circuit breakers, isolation switches, grounding switches, capacitor banks, voltage transformers, current transformers, lightning arresters, control dials, distribution cabinets, protection control panels, relay protection devices, etc.