BXB-Y
Mining ex-proof low voltage side guard box for movable transformer substation
Application
(
)
KJG
3300V
50Hz
1250A
This series Mining flame-proof low voltage side guard box for movable transformer su bstation(shortened for guard box
below) is applicable in explosion danger coal mine downhole filled with methane and coal dust, installed at low voltage
side of movable transformer substation, together with our owned KJG series mining flame-proof intrinsic safety high
voltage v acuum distribution device, compose ideal movable transformer substa tion syst em with l ow voltag e fault breakdown high voltage function. To supplying power system with 3300V, 1140 660V, 380V/50Hz,rated current below 1250A, have
electricity leakage, leakage closedown, short-circuit, overload, phase balance, wind e lectr icity clos edown etc. Protectio n
funct ions. It c an au tomat icall y cut off powe r When supplying power circuit have overload ,short-circuit, loss of phase or
electri city l eakag e. As ma in switch, it has three -phases Symmetry leakage and leakage closedown protection, also is reserved
protection for branch switch leakage protection. Over-current p rotection have Nor mal inver se special characteristics,
Proximal output short-circuit adopt no voltage realeasing big current protection circuit.
Model implication
BX B
/
Y
For Movable transformer susstation use
Rated voltage (V)
Rated current (A)
Explosion proof type
Guard box
17 \
Mining explosion-proof products
Features
This guard box adopt both sides coil out, fulfill multiplex load connection.
All faults drive high voltage side breaker to break down through signal cable, to decrease break-down current, overcome
low voltage side switch frequent break-down fault of movable transformer substation, also ove rcome the dead zon e
problem which is that electricity leakage of the loop from transformer low voltage winding group to low voltage feeding
switch could not break down fault point, can match with different types movable transformer substation.
Automatically following voltage change, Free Jumper design, no need to change periphery electricity circuit, make
customers to use conveniently.
Either switch is opened or closed, online thousand ohms meter can indicate current insulation state all the time, conven ient
to advanced maintenance and adjustment networks insulation degree.
Main technical parameters
3300V 1140V 660V 380V
Rated working voltage: 3300V,1140V 660V 380V.
Rated working system: permanent working.
42~ 78
L
W H
50
574 882
9~
23
732
Cable O.D.: main loop
42
78
Size (L W H) 574
882
732.
control loop
9
23.
Rated working current : 50 to 1250A.
1250A
Model
Rated voltage
(kV)
Rated current
(A)
BXB-1250/3300Y
BXB-1000/3300Y
BXB-800/3300Y
BXB-630/3300Y
BXB-500/3300Y
BXB-400/3300Y
BXB-315/3300Y
BXB-200/3300Y
BXB-150/3300Y
BXB-1600/1140(660)Y
BXB-1250/1140(660)Y
BXB-1000/1140(660)Y
BXB-800/1140(660)Y
BXB-630/1140(660)Y
BXB-500/1140(660)Y
BXB-400/1140(660)Y
BXB-315/1140(660)Y
BXB-200/1140(660)Y
BXB-800/660(380)Y
BXB-630/660(380)Y
BXB-500/660(380)Y
BXB-400/660(380)Y
BXB-315/660(380)Y
BXB-200/660(380)Y
BXB-100/660(380)Y
BXB-50/660(380)Y
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
1140(660)
1140(660)
1140(660)
1140(660)
1140(660)
1140(660)
1140(660)
1140(660)
1140(660)
660(380)
660(380)
660(380)
660(380)
660(380)
660(380)
660(380)
660(380)
1250
1000
800
630
500
400
315
200
150
1600
1250
1000
800
630
500
400
315
200
800
630
500
400
315
200
100
50
Cable O.D. (
mm)
Main circuit
Control circuit
42
8
78
19
Outline dimension
L W H
(mm)
574
882
(kg)
Weight
732 255
www.woram.com \ 18
KJZ
Mining explosion proof intrinsic safety (permanent magnetism)low voltage vacuum feeding switch
Application
50Hz
660V
1140V
1000A
This seri es mining flame-proof vacuum feeding switch is applicable in coal mine and around places full of exp losiv e gas mixture, such as methane, coal dust and so on. In three-phases electric fence o f AC 50Hz, vo ltage 1140V or 660V, current
1000A and neutral-point solid non-ground, it can b e used as main switch or branch switch of distribution, also can be used
for infrequent start of large-capacity motor.
Model implication
K J
Z
-
/
Y
permanent magnetism (if there is no Y, it will be spring)
Rated voltage (V)
Rated current (A)
Design number
High voltage
Explosion proof & intrinsic safety
Feeding switch
19 \
Mining explosion-proof products
Features
DSP
(
PLC)
(
RS-485
CAN
(
)
)
Adopts vacuum circuit breaker which has advantages such as long life, sh ort circui t breaking times is many, arcing
capacity is strong, small size and simple structure.
The product adopts modularize design, with rational layout, simple structure and strong interchange abi lity, which is
convenient to use and maintain.
Connection circuit is designed of intrinsic-safety type, which makes it safer and more reliable.
The protector adopts advanced DPS microprocessor and large-capacity chips, with high protection precisio n and response
speed .It has various protection functions such as leakage latch, leakage protection, selective leakage protection, undervoltage, over-voltage,three-phases imbalance, over load, short-circuit (phase-sensitive or amplitude discrimination),
phase failure, temperature protection, gas protection and wind power latch, voltage monitori ng of on and off cir cuit,
vacuum tube leakage monitoring etc. and watt-hour measuring function.
With fault-memory function.
With hardwareand software self-test function, if there s any problem, the system will provide corresponding error information.
Can real-time display information such as three-phases current, three-phases voltage, power, power factor, insulating
resistance, temperature, software self-control, gas density, running state and so on.
Adopts RS-485 or CAN trunk circuit interface (selected by user), the product realizes communicating with host computer
of monitor system and has four remote control function, which really reach underground unattended.
Main technical parameters
Type spec.
Rated voltage (V)
Rated current (A)
Breaking capacity(kA)
Electrical life
Mechanical life
Breaker type
Protection device
Main circuit cable O.D. Mm
Control circuit O.D. mm
Size (mm)
Weight (kg)
KJZ-1000
/1140
KJZ-800
/1140
KJZ2-630
KJZ-630
/1140(660)Y /1140
KJZ-500
/1140(660)
KJZ2-400
KJZ-400
/1140(660)Y /1140
KJZ-200
/1140(660)
1140
1140
1140 660
1140
1140 660
1140 660
1140
1140 660
1000
800
630
630
500
400
400
200
15
15
15
12.5
12.5
9
9
9
15000
15000
30000
15000
15000
30000
15000
15000
Electromagnetic
Electromagnetic
Permanent
magnetism
Electromagnetic
Electromagnetic
Permanent
magnetism
Electromagnetic
Electromagnetic
3000
SCM or PLC adjustable (
)
42 78
28 63
9 23
860 629 1013
820 530 814
718 490 814
410
320
248
www.woram.com \ 20
KBZ9-400(200)/1140(660)
Mining explosion proof vacuum feeding switch
Application
50Hz
1140V
400A
This series mining explosion-proof vacuum feeding switch is applicable in coal mine or the places where are full of explosive gas mixture such as methane, coal dust and so on. In three-phases electric fence of AC 50Hz, voltage 1140V, 660V,
current 400 A and neutral-point solid non-ground, it can be used as main switch or branch switch of distribution, also can be
used for infrequent start of large-capacity motor.
Model implication
K
B
Z
9-
/
Rated voltage (V)
Rated current (A)
Design no.
Vacuum
Explosion proof
Feeding switch
21 \
Mining explosion-proof products
Features
Switching on/off by m anual, and closing b y electromotion when fault appears. The product adopts modularize design, with
rational layout, simple structure, convenient to use and maintain.
The protector adopts advanced large-capacity new type microprocessor, matched with high-precision data processing
and advanced protection algorithms, it has high protection precision and response speed. It can finish various protection
functions such as: leakage latch, leakage protection, selective leakage protection, under-voltage, over-voltage, threephases imbalance, over load, short-circuit, phase failure, remote shunt trip, gas protection and wind power latch etc.
With faults memory function.
When running, it displays rich information such as current time, three-phases current, electric fence vol tage, ins ulating
resistance(main switch or branch switch), wind power latch, running state (switching on or off) and malfunction information.
Main technical parameters
Type spec.
Rated
current
(A)
KBZ9-400 630
/1140(660)
KBZ9-200 500
/1140(660)
Rated
voltage
(V)
Limit
breaking
capacity
(kA)
1140
7.5
660
9
1140
4.5
660
7.5
Electrical
durability
(PCS)
Mechanical
life
(PCS)
Cable O.D.(
mm)
(kg)
Outline dimension Weight
W D H
(mm)
Main circuit Control circuit
3000
15000
42
68
9
23
662 480 858 158
www.woram.com \ 22
QJZ
Mining explosion-proof intrinsic safety multi loops vacuum electromagnetic starter
Application
50Hz
3300V
1600A
This series starter is applicable in coal mine downhole and the place where is filled with methane coal dust explosion
mixture, in the no grounding three phases power grid rated voltage 660V or 1140V, rated total current from 800A to 1600A,
acted as st artin g swi tch v ari ous equ ipm ent s in mining zon e and other working interface; can automatically shut off power
and indicate fault signal when over load, short-circuit, over-voltage, under-voltage etc. ,Also have leakage closedown and test
function before switch on, and function that indicating current value voltage value of each branch circuit and protection
funct ions such as under-voltage, overload, loss of phase, short- circuit and l eakage closedown etc. ,can operate with single set
control, single set duplicate speed control, twin sets duplicate speed control to control motor, and change motor phas e order
through separated switch when ceasing. Control starting, stopping of motors such as min ing machine, scraper blade
conveyor, m ain motor of rub ber belt conveyor, oil pump, cooling fan and rubber belt extension motor, re wind motor, crush er,
tran sfer conveyor, and protect motor and supplying power circuit, to reachthe aim, supplying power equipments are automatically
controlled in mining zone and other interface.
23 \
Mining explosion-proof products
Model implication
Q
J
Z
-
/
Loops Qty
Rated voltage (V)
Rated current(general)(A)
Design number
Vacuum
Explosion-proof & intrinsic safety
Starter
Features
(PLC)
127V
Protection and control system adopt advanced PLC, high prcision data processing and advanced protection arithmetics,
high protection precision, qucik feedback speed. Have leakage closedown, overload, short-circuit, loss of phase,
undervoltage and overvoltage protection function, also have advantages such as high intelligentize grade, stable
performance, various control ways, reliable action etc.
Adopt all chinese demonstrating displayer, can indicate working state, parameters and fault type of switch, also have
friendly customer interface, favorable man-machine dialog function, to greatly improve efficiency of judging fault and
removing fault.
Indicating system voltage, switch on-off state, three phases current of each loop on switch in real time.
All analog signals can be treated to digital signal, have strong anti-jamming capability, simple cable c onnection, bulk
information quantum, reliable control etc. Characteristics.
Can close and remote control and duplicate speed control.
Have completed self-check, self-diagnoses function, can easy to check protection and control system normal or not, and
communication function with epigyny.
It has the electrical source of 127V.
The cable can be input or output quickly.
Main technical parameters
Type spec.
Rated
voltage
(V)
QJZ-800/3300-2
QJZ-800/3300-4
General
current
(A)
Isolation
switch Qty
800
1
3300
Single circuit
current
(A)
Outline dimension
W D H
(mm)
2544 1320 1092
127V,
1.5kVA
3475 1320 1292
127V,
1.5kVA
400
QJZ-1600/3300-6
1600
QJZ-1600/3300-8
Auxilary
circuit
2
www.woram.com \ 24
QJZ
Mining explosion proof & intrinsic safety multi-loops combination vacuum elecromagnetic starter
Application
50Hz
1140V
660V
2000A
This series starter is a pplicable i n coal mine d ownhole and the places filled with methane coal dust and explosive mixture,
in the no grounding three phases power grid rated voltage 660V or 1140V rated total current of 2000A,acted as starting
switch of the equipments in mining zone and other working interface; it can automatically shut off power and indicate fault
signal when the circuit is meeting the faults of overload, short-circuit, over-voltage, under-voltage etc. ,also have leakage
closedown and test function before switch on, and function that indicating current value voltage value of each branch
circuit and protection functions such as under-voltage, overload, loss of phase, short-circuit and leakage closedown etc. ,
can operate with single set control, single set duplicate speed control, twin sets duplicate speed cont rol to con trol motor,
and change motor phase order through separated switch when ceasing. Control starting, sto pping of m otors such as mining
machine, scraper blade conveyor, main motor of rubber belt conveyor, oil pump, cooling fan and rubber belt extension
motor, rewind motor, crusher, transfer conveyor, and protect motor and supplying powe r circu it, t o rea ch th e aim , supplyin g
power equipments are automatically controlled in mining zone and other interface.
25 \
Mining explosion-proof products
Model implication
Q J Z
-
/
Loop number
Rated voltage (V)
Rated total current (A)
Design number
Vacuum
Explosion proof & intrinsic safety
starter
Features
(PLC)
127V
Protection and control system adopt advanced PLC, high prcision data processing and advanced protection arithmetics,
high protection precision, qucik feedback speed. Have leakage closedown, overload, short-circuit, loss of phase ,
undervoltage and overvoltage protection function, also have advantages such as high intelligentize grade, stable
performance, various control ways, reliable action etc.
Adopt demonstrating displayer, can indicate working state, parameters and fault type of switch, also have friendly customer
interface, favorable man-machine dialog function, to greatly improve efficiency of judging fault and removing fault.
Indicating system: voltage, switch on-off state, three phases current of each loop on switch in real time.
All analog signals can be treated to digital signal, have strong anti-jamming capability, simple cable connection, bulk
information quantum, reliable control etc. Characteristics.
Can close and remote control and duplicate speed control.
Have completed self-check,self-diagnoses function, can easy to check protection and control system normal or not, and
communication function with epigyny.
It has 127V of power source for illumination and control switch.
Main technical parameters
Type spec.
Rated
voltage
(V)
General
current
(A)
Isolation
switch
Qty
Auxilary
circuit
Outline dimension
Cable O.D.(
mm)
W D H
Single
(mm)
circuit
current(A) Main circuit Control circuit
QJZ2-1600/1140(660)-4
1600
QJZ2-1600/1140(660)-6
4
3475 1292 1316
non
3556 1200 1184
127V,
1.5kVA
QJZ2-1600/1140(660)-8
QJZ-2000/1140(660)-9
QJZ-2000/1140(660)-10
QJZ-2000/1140(660)-11
1140
(660)
400
2000
5
42
78
9
23
QJZ-2000/1140(660)-12
www.woram.com \ 26
QJZ2-400(315 200)/1140(660)S
Mining explosion proof intrinsic-safety double-speed double-circuit vacuum electromagnetic starter
Application
50Hz
660V
1140V
400A
This series starter is applicable in coal mine and around places full of explosive gas mixture such as methane, c oal
dus t a nd so on. In th ree-p hases electric fence of AC 5 0Hz, voltage 1140V or 660V, current 400A and neutral-point
solid non-ground, it can be used as start, stop and double-speed switchover to three-phases double-speed asynchronous
motor, it can control single machine or combinedmachine. The starter has various protection functions of under-voltage,
overload, phase failure, short circuit, leakage latch and so on.There are two kinds of control mode: remote control and
close control, also can change phase when machine stops.
27 \
Mining explosion-proof products
Model implication
Q J Z 2 -
/
S
Double-speed double-circuit
Rated voltage (V)
Rated current (A)
Design no.
Vacuum
explosion proof & intrinsic-safety
Electromagnetic starter
Features
Protection and control system adopt imported (PLC) i ndus tria l co ntro l co mput er to mon ito r a nd control system, with
advantages ofhigh degree of intelligent, stable performance, reliable action and so on.
Adopts Chinese display screen to display and record operating condition, parameters and malfunction type of starter,
the product has excellent man-machine conversation function.
All simulation signals are digital, with features of strong anti-jamming ability, simple c onnection, large information
capacity, reliablecontrol etc.
Main technical parameters
(kg)
Type spec.
Rated
voltage
(V)
1140
315
660
QJZ2-200/1140(660)S
Limit breaking
capacity
(kA)
Cable O.D.(
Weight
mm)
Main circuit
Control circuit
Outline dimension
Width Depth Height
(mm)
28
9
807
400
QJZ2-400/1140(660)S
QJZ2-315/1140(660)S
Rated
current
(A)
4.5
63
23
514 1013
380
200
www.woram.com \ 28
QJR-400(315 200)/1140(660)
Mining explosion proof & intrinsic safety AC vacuum soft starter
Application
(
50Hz
)
1140V 660V 380V
400A
This device is applicable in the large and medium size driven equipments used in the heavy -load ed ba d atm osphe res s uch
as coal mine, coal separating plant, port and harsh environment full with explosive gas (methane) and coal dust, etc. In
power supply system of AC 50Hz, voltage 1140V, 660V or 380V, it can be used as soft start, current limiting start, fullvoltage start, natural stop and soft stop to three-phases squirrel-cage asynchronous motor with current equal or less than
400A, and has various protection functions like phase protection, under-current and over-current protection, electronic thermal
overload protection, imbalance current protection and so on.
Model implication
Q J R -
/
Rated voltage (V)
Rated current (A)
Soft start
Explosion proof & intrinsic safety
Starter
29 \
Mining explosion-proof products
Features
RS323
(PLC)
485
Adopts advanced microprocessor, inspection module, protection module and control module. The product has features
of advance d technologies, complete function, stable performance, strong anti-interference capability and reliable operation
and so on.
Use advanced power electronic components to achieve double closed loops control of current and speed, with functions
of soft start soft-stopping, start of kickcircuit, start detecting, RS232 commumication and so on, the produ ct can mee t
control requirements of different load objects like fan motor, water pump, rubber belt conveyor and scraper conveyor, etc.
The product displays voltage, current data of motor.
The soft starter has complete self-diagnosis function and protection function, with protec tion of temperature, under-voltage,
over-voltage, under-current, over-current, default phase, line fault, stall, leakage, thyristor fault, etc. in course of start and
stop. Therefore,above protection functions make operating of soft starter become more reliable whether various interferences and malfunction signals come from inside or outside.
Alarm instruction functions correspond with malfunction type, which greatly reduced maintenance and repair workload.
Simple structure, easy to install and operate. It can be local controlled, as well as remote controlled by programmable
logic controller(PLC) or other equipments.
It has the communication port of RS-485.
Main technical parameters
Type
Rated
current
(A)
Rated
voltage
(V)
Start time
Start
voltage
Limit
current
times
660
380
1140
QJR-315 315
660
380
1140
QJR-200 200
Available cable O.D.
( mm)
Main
circuit
Control
circuit
Weight
Outline dimension (kg)
Width Depth
Height
(mm)
9
830
500
1140
QJR-400 400
Motor
Power
(kW)
2
60
20
100
1 8
340
200
380
continuous 20-100% 1-8 times
250
Adjustable of rated of rated
160
current
In range of voltage
2s -60s
250
660
170
380
100
42
78
23
690
930 400
www.woram.com \ 30
QJZ-192(300)/660(380)J
Mining explosion proof intrinsic-safety self-coupling reduced voltage vacuum electromagnetic starter
Application
50Hz
380V 660V
160kW
This seri es starte r is appl icable in coal mine and around places full o f exp losiv e gas mixtu re s uch as me tha ne, co al dus t
and so on. In circuit of AC 50Hz, voltage 380V or 660V, rated power up to 160kW, it can be used as reduced voltage start
and stop of explosion proof three -phases squirrel-cage asynchronous motor.
Model implication
Q J Z -
/
J
Self-coupling reduced voltage
Rated voltage (V)
Rated current (A)
Vacuum
explosion proof & intrinsic-safety
Electromagnetic starter
31 \
Mining explosion-proof products
Features
LCD displays in Chinese, intuitive and legible, intelligent SCM control.
With protection functions of overload, short circuit, voltage-absent, phase failure, leakage latch and so on.
Can realize remote control and close control.
Main technical parameters
Type spec.
Rated voltage
(V)
Rated current
(A)
Rated power
(kW)
Available cable O.D. ( mm)
Main circuit
QJZ-300/380J
380
100
QJZ-192/660J
660
66
QJZ-300/380J
380
140
QJZ-192/660J
660
90
QJZ-300/380J
380
178
QJZ-192/660J
660
114
QJZ-300/380J
380
205
QJZ-192/660J
660
132
QJZ-300/380J
380
253
QJZ-192/660J
660
162
QJZ-300/380J
380
300
QJZ-192/660J
660
192
Control circuit
Outline dimension
Width Depth Height
(mm)
Weight
(kg)
55
495
75
510
95
518
42 78
9
23
850
640
1180
110
538
135
605
160
698
www.woram.com \ 32
QJZ2-400 315 200/1140(660)
Mining explosion proof intrinsic-safety vacuum electromagnetic starter
Application
50Hz
1140V
400A
This series starter is applicable in coal mine and around places full of explosi ve gas mi xture su chas meth ane, coa l du st
and so on. In electric fence of AC 50Hz, voltage 1140V, current 400A, neutral-point solid non-ground, it's mainly used
to control t he start and stop of min ing explosi on proof three-phases asynchronous motor. There are two kinds of control
mode: remote control and close control, also can change phase when machine stops.
Model implication
Q J Z 2 -
/
Rated voltage (V)
Rated current (A)
Design no.
Vacuum
explosion proof & intrinsic-safety
Electromagnetic starter
33 \
Mining explosion-proof products
Features
PLC
RS485
The product adopts modularize design, with rational layout, simple structure, which is convenient to use and maintain.
The protector adopts advanced, large-capacity and new type microprocessor (or PLC) with high protection precision and
response speed. It can finis h various protection functions such as: leakage latch, under-voltage, over-voltage, three-phases
imbalance, over load, short-circuit, wind power latch, gas protection, etc.
With malfunction memory function.
With hardware and software self-test function, if there's any problem, the system will pro vide corre sponding error
information.
When works normally, the display screen displays three-phases working current value and phase wi re voltag e value o f
system at the same time, and displays all kinds of menu, setting parameter value, malfunction parameter value and test
results through key-press when setting.
The protector can realize communicating with host computer of monitor system through RS485, and can finis h re mote
switch off, remote switch on, revising parameters, inspecting switch state and inspecting analog quantity.
Main technical parameters
(kg)
Type
QJZ2-400
QJZ2-315
QJZ2-200
Rated current
(A)
400
315
200
Rated voltage
(V)
Power of
control motor
(kW)
1140
500
660
340
380
200
1140
380
660
250
380
160
1140
250
660
170
3800
100
Weight
Available cable O.D. ( mm)
Main circuit
Control circuit
Outline dimension
Width Depth Height
(mm)
28
9
718
63
23
520
814
225
www.woram.com \ 34
QJZ3
Mining explosion proof & intrinsic safety vacuum electromagnetic starter
Application
QJZ
(
50Hz
)
1140V 660V 380V
30A
200A
QJZ3 mining ex-proof and intrinsic safety vacuum electromagnetic starter (hereinafter: start er) is applicable in coal mines
or places where are full of explosive gas mixture such as metha ne, coal dust and so on. In power s upply of AC 50Hz,
voltage 1140V, 660V or 380V, current 30~200A, it can be used to directly control or remote control the start and stop of
mining ex-proof type thr ee-phase asynchronous motor and it also can be used to exchange the phase when stops.
Model implication
Q J Z 3 -
/
Rated voltage(V)
Rated current(A)
Design No.
Vacuum
Explosion proof & intrinsic safety
Electromagnetic starter
35 \
Mining explosion-proof products
Features
JDB
(
)
Main circuit of this series product adopts vacuum contactor, without arc, long life and high reliability.
Adopts JDB motor integrated protector with complete protection function.
Simple structure, less maintenance.
Function of liquid level control (please take a notice when placing an order).
Main technical parameters
Type spec.
QJZ3-30/660(380)
QJZ3-60/660(380)
QJZ3-80/660(380)
QJZ3-120/660(380)
QJZ3-200/660(380)
QJZ3-30/1140(660)
QJZ3-60/1140(660)
QJZ3-80/1140(660)
Rated
current
(A)
Rated
voltage
(V)
Motor power
(kW)
660
25
380
15
660
50
380
30
660
65
380
40
660
100
380
60
660
170
380
100
1140
35
660
25
1140
60
660
50
1140
100
660
65
1140
150
660
100
1140
250
660
170
Entry cable O.D.(
,mm)
Main circuit
Control circuit
12~30
8~19
Outline dimension
L W H
(mm)
(kg)
Weight
30
425
343
540
55
60
80
108
120
200
650
30
19~51
446
742
100
8~19
60
80
127
QJZ3-120/1140(660) 120
QJZ3-200/1140(660) 200
650
455
780
130
www.woram.com \ 36
QJZ3-N
Mining explosion-proof & intrinsic-safety reversible vacuum electromagnetic starter
Application
QJZ3- / N
(
50H z
)
1140V
660V
380V
30
200A
QJZ3- / N mining ex-proof intrinsic safety reversible vacuum electromagnetic starter (hereinafter : starter) is applicable
in coal mine or places where are full of explosi ve gas mix ture such as methane, coal dust and so on. In the power supply
of AC 50Hz, p ower grid voltage 1140V, 660V or 380V, current 30~ 200A, it can be used to directly control or remote co ntrol
the start and stop the mining ex-proof three-phase asynchronous motor.
Model implication
Q J Z 3 -
/
N
Reversible
Rated voltage(V)
Rated current(A)
Design No.
Vacuum
Explosion proof & intrinsic safety
Electromagnetic starter
37 \
Mining explosion-proof products
Features
JDB
Main circuit of this series product adopts vacuum contactor, without arc, long life and high reliability.
Adopts JDB motor integrated protector with complete protection function.
There is reliable electric interlocking and machinery interlocking between two contactors whic h is conne cted in fo rward
and reverse direction.
Simple structure, less maintenance.
Main technical parameters
Type spec.
QJZ3-30/660(380)N
QJZ3-60/660(380)N
QJZ3-80/660(380)N
QJZ3-120/660(380)N
QJZ3-200/660(380)N
QJZ3-30/1140(660)N
QJZ3-60/1140(660)N
QJZ3-80/1140(660)N
Rated
current
(A)
Rated
voltage
(V)
Motor power
(kW)
660
25
380
15
660
50
380
30
660
65
380
40
660
100
380
60
660
170
380
100
1140
35
660
25
1140
60
660
50
1140
100
660
65
1140
150
660
100
Entry cable O.D.(
,mm)
Main circuit
Control circuit
Outline dimension
L W H
(mm)
19~51
8~19
650
(kg)
Weight
30
60
446
742
100
80
120
200
126
30
60
19~51
8~19
650
455
780
130
80
QJZ3-120/1140(660)N 120
www.woram.com \ 38
QBZ2
Mining explosion proof vacuum electromagnetic starter
Application
QBZ2
(
50Hz
)
1140V 660V 380V
30
200A
QBZ2 Mining explosion-proof vacuum electromagnetic starter (hereinafter : st arte r) i s ap plic able in coal m ine or pla ces
where are full of explosive gas mixture such as methane, coal dust and so on. In power supply of AC 50Hz, voltage 1140V,
660V or 380V, current 30~200A, it can be used to directly control or remote control the start and stop of mining ex-proof
three-phases asynchronous motor and also can be used to exchange phase when stops.
Model implication
Q B Z 2 -
/
Rated voltage(V)
Rated current(A)
Design No.
Vacuum
Explosion proof
Electromagnetic starter
39 \
Mining explosion-proof products
Features
JDB
Main circuit of this series product adopts vacuum contactor, without arc, long life and high reliability.
Adopts JDB motor integrated protector with complete protection function.
Simple structure, less maintenance.
Main technical parameters
Type spec.
QBZ2-30/660(380)
QBZ2-60/660(380)
QBZ2-80/660(380)
QBZ2-120/660(380)
QBZ2-200/660(380)
QBZ2-30/1140(660)
QBZ2-60/1140(660)
QBZ2-80/1140(660)
Rated
current
(A)
Rated
voltage
(V)
Motor power
(kW)
380
25
660
15
660
50
380
30
660
65
380
40
660
100
380
60
660
170
380
100
1140
40
660
25
1140
80
660
50
1140
100
660
65
1140
150
660
100
1140
250
660
170
Entry cable O.D.(
Main circuit
,mm)
Control circuit
Outline dimension
L W H
(mm)
(kg)
Weight
30
12~30
425
290
540
49
12~40
535
420
545
80
19~51
535
456
672
92
60
80
120
200
30
60
19~51
8~19
108
19~51
19~51
650
446
742
80
123
QBZ2-120/1140(660)
QBZ2-200/1140(660)
120
200
19~51
650
455
780
127
www.woram.com \ 40
QBZ2-N
Mining explosion proof reversible vacuum electromagnetic starter
Application
QBZ2-N
(
50Hz
)
1140V 660V
380V
30A
200A
QBZ2-N mining explosion proof reversible vacuum electromagnetic starter (hereinafter: starter) is applicable in coal
mine or places where are full of explosive gas mixt ure such as methane, coal dust and so on in the power supply of AC
50Hz, voltage 1140V, 660V or 380V, current up to 200A. It can be used to remote control, reverse st art and s top of
mining ex- proof three-phases asynchr-onous motor and also can be used as local stop.
Model implication
Q B Z 2 -
/
N
Reversible
Rated voltage(V)
Rated current(A)
Design No.
Vacuum
Explosion proof
Electromagnetic starter
41 \
Mining explosion-proof products
Features
JDB
Main circuit of this series product adopts vacuum contactor, without arc, long life and high reliability.
Adopts JDB motor integrated protector with complete protection function.
There is reliable electric interlocking and machinery interlocking between two contactors which is connected in forwa rd
and reverse direction.
Simple structure, less maintenance.
Main technical parameters
Type spec.
Rated
current
(A)
Rated
voltage
(V)
Motor power
(kW)
Entry cable O.D.(
Main circuit
,mm)
Control circuit
Outline dimension
L W H
(mm)
(kg)
Weight
660
QBZ2-30/660(380)N
30
380
25(15)
12~30
425
343
540
564
446
723
57
660
QBZ2-60/660(380)N
QBZ2-80/660(380)N
QBZ2-120/660(380)N
QBZ2-200/660(380)N
60
380
50(30)
660
65
380
40
660
100
380
60
660
170
380
100
80
108
19~51
650
120
200
19~51
446
742
8~19
1140
QBZ2-30/1140(660)N
120
30
660
1140
QBZ2-60/1140(660)N
60
660
QBZ2-80/1140(660)N
650
1140
100
660
65
1140
150
660
100
1140
250
660
170
455
780
80
123
QBZ2-120/1140(660)N 120
QBZ2-200/1140(660)N 200
19~51
132
www.woram.com \ 42
QJZ-2 80(120 200)/1140(660 380)SF
Fan use explosion proof & intrinsic safety double power source vacuum electromagnetic starter
Application
(
50Hz
4
)
200A
1140V 660V
380V
This series vacuum electromagnetic starter (hereinafter: starter) is applicable to be used to start, reverse and stop the
contra-ro tated fan s in the coal mine or the p lace where is full of methane, coal dust or explosive gas at the power supply
net of 50 Hz, rated curre nt 4
200A and voltage 1140V/660V/380V.
Model implication
Q J Z -2
/
S F
Fan use
Duplicate power
Rated voltage(V)
Rated current(A)
Qty of the fan
Vacuum
explosion proof & intrinsic safety
Starter
43 \
Mining explosion-proof products