words and expressions1-10

电力英语

PD

F -X C h a n ge

PD

F -X C h a n ge

O W !

N

y

bu

to

k

lic

C

m

C

lic

k

to

bu

y

N.c

O W !w.d o

w

o

.d o

c u -tr a c k

c u -tr a c k

.c

Lesson one

1

o

m

ww

ww

电力英语

PD

F -X C h a n ge

PD

F -X C h a n ge

O W !

N

y

bu

to

k

lic

C

m

C

lic

k

to

bu

y

N.c

O W !w.d o

w

o

.d o

c u -tr a c k

c u -tr a c k

.c

Power system

blackout

prolonged blackout

load

electric power demand Nuclear fission fossil-fired power

Power consumption per capita potential energy hydro power

power plant

kinetic energy Nuclear power

Low voltage high voltage Transmission line Primary substation

extra-high voltage

ultra-high voltage

subtransmission line local substation

feeder distribution substation

2

o

m

ww

ww

电力英语

PD

F -X C h a n ge

PD

F -X C h a n ge

O W !

N

y

bu

to

k

lic

C

m

C

lic

k

to

bu

y

N.c

O W !w.d o

w

o

.d o

c u -tr a c k

c u -tr a c k

.c

Power generation Power distribution Plan operate

power transmission power utilization interconnection

power transformation power utility

3

o

m

ww

ww

电力英语

PD

F -X C h a n ge

PD

F -X C h a n ge

O W !

N

y

bu

to

k

lic

C

m

C

lic

k

to

bu

y

N.c

O W !w.d o

w

o

.d o

c u -tr a c k

c u -tr a c k

.c

unit

reserve capacity

equipment-forced outage three-phase

rate

stall

alternative current Domestic load relay IEC ANSI IEEE

direct current

single-phase

industrial load

commercial load single-line diagram

circuit breaker the International Electrotechnical Commission the American National Standards Institute the Institute of Electrical and Electronics Engineers fuse bulk power supply

Rotating machine combustion turbine

4

o

m

ww

ww

电力英语

PD

F -X C h a n ge

PD

F -X C h a n ge

O W !

N

y

bu

to

k

lic

C

m

C

lic

k

to

bu

y

N.c

O W !w.d o

w

o

.d o

c u -tr a c k

c u -tr a c k

.c

Lesson two Electric power network

5

o

m

ww

ww

电力英语

PD

F -X C h a n ge

PD

F -X C h a n ge

O W !

N

y

bu

to

k

lic

C

m

C

lic

k

to

bu

y

N.c

O W !w.d o

w

o

.d o

c u -tr a c k

c u -tr a c k

.c

Electric power network Commercial customer Right of way

power grid/ network frame residential customer industrial customer

swichgear mercury arc rectifier thyratron inductive reactance skin effect

Step-up transformer step-down transformer

Capacitive reactance phase displacement voltage drop Potential stress corona loss dielectric loss

instrument transformer protective relay AC network

Lightning arrester disconnecting switch

capacitor bank

Single-circuit unit substation three-phase three-wire

four-wire

6

o

m

ww

ww

电力英语

PD

F -X C h a n ge

PD

F -X C h a n ge

O W !

N

y

bu

to

k

lic

C

m

C

lic

k

to

bu

y

N.c

O W !w.d o

w

o

.d o

c u -tr a c k

c u -tr a c k

.c

Lesson three Thermal power plant

7

o

m

ww

ww

电力英语

PD

F -X C h a n ge

PD

F -X C h a n ge

O W !

N

y

bu

to

k

lic

C

m

C

lic

k

to

bu

y

N.c

O W !w.d o

w

o

.d o

c u -tr a c k

c u -

tr a c k

.c

Thermal power plant Do work furnace

prime mover steam turbine internal energy boiler petroleum natural gas crusher

belt conveyor

pulverizer

coal feeder primary combustion air stream turbine stage stator bucket stationary blade condensing type

Secondary combustion air stream Nozzle partition moving blade Subatmospheric pressure Makeup water

rotor

condenser

condensate cooling tower

boiler blowdown

auxiliary system feedwater system booster pump

combustion air and exhaust gas system boiler feed pump

8

o

m

ww

ww

电力英语

PD

F -X C h a n ge

PD

F -X C h a n ge

O W !

N

y

bu

to

k

lic

C

m

C

lic

k

to

bu

y

N.c

O W !w.d o

w

o

.d o

c u -tr a c k

c u -tr a c k

.c

Forced-draft fan Baghouse filter

induced-draft fan

air compressor

electrostatic precipitator

flue gas desulfurization scrubber economizer reheater superheater

Thermal discharge regulation Air preheater stack

feedwater heater

Coal-burning power plant Pressure regulating valves Peak power valley power

oil-burning power plant

gas-burning power plant

combustion turbine power plant combined cycle power plant rated output

Heat recovery steam generator

9

o

m

ww

ww

电力英语

PD

F -X C h a n ge

PD

F -X C h a n ge

O W !

N

y

bu

to

k

lic

C

m

C

lic

k

to

bu

y

N.c

O W !w.d o

w

o

.d o

c u -tr a c k

c u -tr a c k

.c

Lesson four Hydro power generation and nuclear power generation

10

o

m

ww

ww

电力英语

PD

F -X C h a n ge

PD

F -X C h a n ge

O W !

N

y

bu

to

k

lic

C

m

C

lic

k

to

bu

y

N.c

O W !w.d o

w

o

.d o

c u -tr a c k

c u -tr a c k

.c

Hydraulic turbine

hydraulic power station potential energy runner blade bucket

head

Low/ medium/ high head impulse velocity turbine

reaction pressure reservoir rapid startup peak hour outage rate

turbine off-peak hour capacity factor

Pumped storage power station Reversible pump turbine Synchronous condenser Steam generator

nuclear power station

nuclear reactor

light-water reactor

fast neutron boiling-water reactor nuclear turbine

Pressurized-water reactor

reactor pressure vessel

11

o

m

ww

ww

电力英语

PD

F -X C h a n ge

PD

F -X C h a n ge

O W !

N

y

bu

to

k

lic

C

m

C

lic

k

to

bu

y

N.c

O W !w.d o

w

o

.d o

c u -tr a c k

c u -tr a c k

.c

Tandem-compound

double-flow high-pressure turbine moisture separator erosion rate

double-flow low-pressure turbine

12

o

m

ww

ww

电力英语

PD

F -X C h a n ge

PD

F -X C h a n ge

O W !

N

y

bu

to

k

lic

C

m

C

lic

k

to

bu

y

N.c

O W !w.d o

w

o

.d o

c u -tr a c k

c u -tr a c k

.c

Lesson five Synchronous generator

13

o

m

ww

ww

电力英语

PD

F -X C h a n ge

PD

F -X C h a n ge

O W !

N

y

bu

to

k

lic

C

m

C

lic

k

to

bu

y

N.c

O W !w.d o

w

o

.d o

c u -tr a c k

c u -tr a c k

.c

Synchronous generator Steady-state

stator

rotor

armature magnetic field

field current cylindrical

round-rotor machine salient pole machine round rotor salient-pole rotor slot

turbogenerator

Distributed field winding

concentrated field winding

amortisseur/damper winding Synchronous converter Phase voltage

synchronous motor synchronous condenser line voltage carbon brush

three-phase Y-connected winding lead

copper strap retaining ring

slip ring

Synchronous reactance

transient reactance subtransient reactance

14

o

m

ww

ww

电力英语

PD

F -X C h a n ge

PD

F -X C h a n ge

O W !

N

y

bu

to

k

lic

C

m

C

lic

k

to

bu

y

N.c

O W !w.d o

w

o

.d o

c u -tr a c k

c u -tr a c k

.c

Short-circuit

open-circuit

a machine connected to an infinite bus lose synchronism round rotor short-circuit ratio SCR

phasor diagram load angle turbogenerator No-load stiffness cylindrical

salient-pole rotor inertia

full-load

voltage regulator

excitation system

per-unit value

15

o

m

ww

ww

电力英语

PD

F -X C h a n ge

PD

F -X C h a n ge

O W !

N

y

bu

to

k

lic

C

m

C

lic

k

to

bu

y

N.c

O W !w.d o

w

o

.d o

c u -tr a c k

c u -tr a c k

.c

Lesson six Transformer

16

o

m

ww

ww

电力英语

PD

F -X C h a n ge

PD

F -X C h a n ge

O W !

N

y

bu

to

k

lic

C

m

C

lic

k

to

bu

y

N.c

O W !w.d o

w

o

.d o

c u -tr a c k

c u -tr a c k

.c

transformer

voltage level

magnetic core

winding

primary winding

autotransformer Rated load

insulating bushing voltage drop

turn ratio

no-load voltage Power factor tap

voltage regulation

De-energized tap changer Two-winding transformer Phasing out system

load tap changer

high voltage and high current step-down transformer tertiary winding mechanical strength

step-up transformer

Y-connected neutral

delta-connected solidly grounding

The third harmonic current Insulation clearance

single-phase load

17

o

m

ww

ww

电力英语

PD

F -X C h a n ge

PD

F -X C h a n ge

O W !

N

y

bu

to

k

lic

C

m

C

lic

k

to

bu

y

N.c

O W !w.d o

w

o

.d o

c u -tr a c k

c u -tr a c k

.c

Lesson seven Circuit breaker

18

o

m

ww

ww

电力英语

PD

F -X C h a n ge

PD

F -X C h a n ge

O W !

N

y

bu

to

k

lic

C

m

C

lic

k

to

bu

y

N.c

O W !w.d o

w

o

.d o

c u -tr a c k

c u -tr a c k

.c

Circuit breaker

switch circuit on switch circuit off arc current zero

contact recovery voltage

Full insulation level Gas discharge

air-blast breaker hydrogen gas

sulfur hexafluoride breaker extinguish chamber arc reignition operating mechanism hydraulic~ vent

Oil-minimum breaker

Voltage withstand ability Vacuum breaker Electromagnetic~

contact separation

power frequency power frequency arc spring~ pneumatic~

19

o

m

ww

ww

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