Increasing the applied torque 

.PS
include(pstricks.m4)

scale=25.4	#scale in [mm]

cct_init

define(`label',`rect_(sqrt($1.x^2+$1.y^2)+$2,atan2($1.y,$1.x))')

_mm=0.5			#[mm]
_V=(1/220)*_mm	#[mm/V]

_min_x=-40*_mm
_max_x=120*_mm
_min_y=-20*_mm
_max_y=80*_mm

_offset=5*_mm

_V_a=33e3/sqrt(3)*_V
_adj=1.00

O: (0,0)

_delta=20
linethick_(0.75)

V_a: Rect_(_V_a,0)
E_af: Rect_(_V_a*_adj,_delta)
V_jXsIa: E_af-V_a
I: (V_jXsIa.y*1.5,-V_jXsIa.x*1.5)

line from O to V_a ->
line from O to E_af ->
if _delta > 1 then {
	line from O to V_jXsIa ->
	line from O to I ->}

"$\mathbf{V}_a$" at label(V_a,_offset) below
"$\mathbf{E}_{af_1}$" at label(E_af,_offset) 
if _delta > 1 then {
	"$j{X_s}\mathbf{I}_{a_1}$" at label(V_jXsIa,_offset)
	"$\mathbf{I}_{a_1}$" at label(I,_offset)}

linethick_(0.5)

arcd(O,0.25*_V_a,0,_delta) <-> ccw
"$\delta_1$" at Rect_(0.25*_V_a+_offset,_delta/2)

linethick_(0.2)

arcd(O,_V_a,-5,_delta+5)

_delta=35
linethick_(0.75)

V_a: Rect_(_V_a,0)
E_af: Rect_(_V_a*_adj,_delta)
V_jXsIa: E_af-V_a
I: (V_jXsIa.y*1.5,-V_jXsIa.x*1.5)

line from O to V_a ->
line from O to E_af ->
if _delta > 1 then {
	line from O to V_jXsIa ->
	line from O to I ->}

"$\mathbf{V}_a$" at label(V_a,_offset) below
"$\mathbf{E}_{af_2}$" at label(E_af,_offset) 
if _delta > 1 then {
	"$j{X_s}\mathbf{I}_{a_2}$" at label(V_jXsIa,_offset)
	"$\mathbf{I}_{a_2}$" at label(I,_offset)}

linethick_(0.5)

arcd(O,0.35*_V_a,0,_delta) <->
"$\delta_2$" at Rect_(0.35*_V_a+_offset,_delta/2)

linethick_(0.2)

arcd(O,_V_a,-5,_delta+5)

_delta=50
linethick_(0.75)

V_a: Rect_(_V_a,0)
E_af: Rect_(_V_a*_adj,_delta)
V_jXsIa: E_af-V_a
I: (V_jXsIa.y*1.5,-V_jXsIa.x*1.5)

line from O to V_a ->
line from O to E_af ->
if _delta > 1 then {
	line from O to V_jXsIa ->
	line from O to I ->}

"$\mathbf{V}_a$" at label(V_a,_offset) below
"$\mathbf{E}_{af_3}$" at label(E_af,_offset) 
if _delta > 1 then {
	"$j{X_s}\mathbf{I}_{a_3}$" at label(V_jXsIa,_offset)
	"$\mathbf{I}_{a_3}$" at label(I,_offset)}

linethick_(0.5)

arcd(O,0.45*_V_a,0,_delta) <->
"$\delta_3$" at Rect_(0.45*_V_a+_offset,_delta/2)

linethick_(0.2)

arcd(O,_V_a,-5,_delta+5)

line from (_min_x,0) to (_max_x,0)
line from (0,_min_y) to (0,_max_y)


.PE