ZWAE NSW30 Manual

Installation and Service Manual
Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o.
NSW30
Motor Operating Mechanism
Manual DTR.05.04.03.EN

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zwae.com.pl
WARNING!
During the operation of electrical equipment, certain parts of
these devices are normally under dangerous voltage, and mech-
anical parts, also remotely controlled, can move quickly.
Failure to follow the warning instructions can result in serious
personal injury or material damage.
Only suitably qualied personnel can work on or near the device.
These personnel must know exactly all safety rules and main-
tenance rules in accordance with these instructions.
The trouble-free and safe operation of this device requires prop-
er transport, proper storage, construction and assembly as well
as careful service and maintenance.

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Spis treści
1. TRANSPORT ........................................ 4
1.1 Unpacking and inspection............................... 4
1.2. Transport and storage ................................. 4
2. Description .......................................... 4
2.1. Cosntruction and principle of operation. .................. 4
2.2. Housing box .......................................... 5
2.3. Driving mechanism .................................... 5
2.4. Environmental conditions............................... 5
2.5. Nominal plate......................................... 6
2.6. Technical dat . ........................................ 6
3. ADDITIONAL EQUIPMENT .............................. 7
3.1. Electromagnetic interlock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2. Control system in box ................................. 8
3.3. Control system on TH-35 bar5 .......................... 8
3.4. Coupling joint ........................................ 9
3.5. Coupling rod ......................................... 9
3.6. Angular gears......................................... 10
3.7. Disconnector gears ................................... 11
4. INSTALATION AND ADJUSTMENT......................... 11
4.1. Assembling to the supporting construction................ 11
4.2. Assembling on MV switch .............................. 12
4.3. Coupling with rod assembling on the main shaft
of MV switch ............................................. 12

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4.4. Connecting protective grounding.. ....................... 12
4.5. Connecting control and supply circuits.................... 12
4.6. Adjusting the rotation angle of the output shaft. ........... 13
4.7. Tests before putting into service ......................... 13
5. EXPLOITATION ....................................... 14
5.1. Manual control........................................ 14
6. PERIODIC INSPECTIONS AND CONSERVATIONS ............ 16
6.1. Visual inspection ...................................... 16
6.2. Spare parts and recommended maintenance materials. . .... 16
7. DIMENSION DRAWING OF THE OPERATING MECHANISM .... 17
8. DIMENSION DRAWING OF THE CONTROL BOX ............. 17
9. WIRING DIAGRAM OF NSW30-3 – MOTOR WITH
PERMANENT MAGNETS ................................. 18
10. WIRING DIAGRAM OF NSW30-4 – SERIAL MOTOR ......... 19
11. UTILIZATION ....................................... 20

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1. TRANSPORT
1.1. Unpacking and inspection
Immediately after receiving the drive, check the delivery compliance with the shipping specication. Then
check whether the drive has not been mechanically damaged during transport and the data on the nameplate
with the order
The drive is delivered in a cardboard package. Drives are delivered to the recipient completely assembled.
1.2. Storage and transport
For storage and installation, the drives can be transported by any means of transportation provided they are
protected from moisture. During transport, the drives should be secured against moving and colliding with
each other or parts of the vehicle.
2. DESCRIPTION
NSW30 motor drives are designed for cooperation with disconnectors, disconnectors and earthing switches
of medium voltage in indoor conditions. The use of the drive allows remote or local control of the switch
installed in the switchgear cubicle. In a simple way, without any additional changes in the existing switch-
gear, you can replace the existing pneumatic or manual drives of the NRK type, thereby introducing a new
standard of operation and safety (remote control option, local or manual)
2.1. Construction and principle of operation.
1. housing box,
2. core,
3. gear,
4. motor,
5. angular gear,
6. output shaft,
7. limit switch,
8. terminal block,
9. lock handle enabling switching to
manual or motor operation,
10. manual lever
11. microswitch of electrical blockade.
9
10
8
4
3
6 1 2 7 5 11

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2.2. Housing box
The housing box is made of steel sheet,
covered with a layer of epoxy powder paint.
The housing cover is attached to the corp behind
using four self-tapping screws [12]. In the bottom
parts of the housing, on both sides, are located
embossments with a diameter of 14 mm allowing
bringing wires to the control system.
1.casing
2. sheet metal srews
2.3. Driving mechanism
Driving mechanism includes:
• DC electric motor
• Multistage transmission gear
• angular gear.
An electric motor drives a bevel gear through a three-gear gear.
As a result of the gear transmission, the maximum drive torque is approx. 300Nm, and the angle of rotation
of the output shaft is limited by the limit switches to 220 °. The casing is made of steel sheet, covered with a
layer of epoxy powder paint. The housing cover is attached to the body by means of four self-tapping screws
[12]. In the lower part of the casing, a cable gland with a diameter of 14 mm is provided, enabling the supply of
control and supply wires.
2.4. Environmental conditional
The drives are recommended to be used indoors, in an atmosphere free from aggressive chemical agents, at
ambient temperatures of -5 to + 40 ° C and relative humidity not exceeding 70%.
2
12

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2.5. Nominal plate
2.6. Technical data
Lp. Parameter Value
1. Type NSW30-3 NSW30-4
2. Nominal voltage
110 VDC
110 VAC
24 VAC
220 VDC
230 VAC
3. Nominal current
4,9A/220V
5A/220 V
19 A/24 V
4,9 A/220 V
4. Nominal power 300W
5.
Torque:
- nominal
- maximum
150 Nm
300 Nm
6. Switching time ca. 5s
7. Maximum diameter of wires 4 mm2
8. Weight ca 10kg
9. Mechanical endurance 2000 cycles

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3. ADDITIONA EQUIPMENT
3.1. Electromagnetic interlock

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3.2. Control system in the box
3.3. Control system on TH-35 bar

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3.4. Coupling joint
3.5. Coupling rod
Standard
Insulated
StrengthenedStandard

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3.6. Angular gear
Strengthened
An example of angular gear application.
Standard
First shaft’s length
Second shaft’s length
Angular gear

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3.7. Disconnector gears
StrenghtenedStandard
4. INSTALATION AND ADJUSTMENT
4.1. Assembling to the supporting construction
The drive is fastened to the supporting structure with two M10
screws. The wall on which the drive is mounted should be suf-
ciently rigid, thus ensuring a certain transmission of the drive
torque.
Compatibility between the spacing of mounting holes and the
shape of the output shaft ensures full interchangeability for
manual drives of the type NRK produced by ZWAR S.A and
manual drives NR-1 produced by ZWAE sp. O.o.
1. screw M10x35
2. spring washer B10-A70
3. washer M10
4. nut M10
4
31 2 3

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4.2. Assembling on MV switch
4.3. Coupling with rod assembling on the main shaft of
MV switch.
1. clamp
2. coupling joint
4.4. Connecting protective grounding.
For grounding the coupling shaft of the motor drive with
the apparatus, a clamp on the cross-joint is used, consist-
ing of an M12 screw and washer. The cross-section of the
earthing conductor should be selected in accordance with
the applicable regulations.
4.5. Connecting control and supply circuits.
The control cable must be inserted into the drive housing
via a throttle. Connection of the control cable with the ter-
minal block of the drive should be made in accordance with
the designed control system. The maximum cross-section
of wires supplied to the terminal block can be 4 mm2.
3
4
1
2
5
6
from 60 to 120
11
22
1. Apparatus frame
2. Apparatus shaft
3. pinion (large bevel gear)
4. pinion(small bevel gear)
5. pin 10x50
6. operating mechanism’s propulsive shaft

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Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o.
4.6. Adjusting the roatation angle of the output shaft.
The angle of rotation of the output shaft is adjusted by limit switches [23] mounted coaxially with the control
bracket [24]. Unscrewing the M4 bolt allows you to move the control bracket with the connector to the cam
on the shaft, and this allows you to smoothly adjust the angle of the output shaft in the range of 220 degrees.
4.7. Tests before putting into service
Before putting the drive into service, check the quality of its assembly and the correct interaction with the de-
vice. For this purpose, 10 - 20 electrically controlled shifts should be made, carefully observing the interaction
of the parts. In the case of any irregularities in the operation of the drive or the apparatus cooperating with it, a
re-adjustment of the respective assemblies should be carried out and the tests should be repeated.
1
2
Screw M4Screw M4

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5. EXPLOITATION
5.1. Manual control
In order to manually maneuver the drive:
(1) insert the notch of the drive lever [10] into the lock handle [9]
(2) swing the lever in the direction indicated in the sketch
For version with BE-2 blockade:
(2.1) Press the lock release button
(2.2) Slide the drive shaft slide gate with your ngers
(4) put the lever on the drive shaft
(5) rotate to close the apparatus (right) or open (left) depending on the current position of the apparatus.
After completing the maneuver, lower the grip handle [9] and retract the drive lever [10].
EMERGENCY MANEUVERING
The BE-2 lock also allows the emergency
maneuvering. The flap(secured with a pad-
lock, seal, etc.) obstructing the locking coil
should be pushed back and the coil plunger
pulled back. While pulling back the plunger,
perform steps 2.2-4.
2
1
A
B
4
3
2
1
4
3
2.1
2.2

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ATTENTION
After manual override, check whether the drive shaft has
been engaged, i.e. retraction to the original position (the
shaft flange must be adjacent to the cam causing the shaft
to move away).
If the coupling is not engaged, turn the drive shaft a few de-
grees to the right or to the left.

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6. PERIODIC INSPECTIONS AND CONSERVATIONS
6.1. Visual inspection
Visual inspection is recommended to be carried out once a year and after any failure or short circuit in the
switchgear. Check especially:
a) the state of the earth terminal,
b) the state of the coupling mechanisms,
c) the condition of external parts (housing).
d) connection of wires with terminal block, xing of limit switches.
6.2. Spare parts and recommended maintenance metarials.
The use of high quality components and operational experience indicate the long service life of motor drives
(about 30 years). In the event of damage to the drive due to improper assembly or operation, it is possible for
the manufacturer to pay for repairs.
PHARMACEUTICAL WHITE (acid-free) used for the lubrication of electrical contacts (grounding, contacts of
HV switches)
PROTECTION GREASE TDM according to PN-64 / C-96146 used for the preservation of metal surfaces (shaft
articulation elements and coupling mechanism).

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300
4x
6,5
45 210
25
250 300
~325
170
~200
7. DIMENSION DRAWING OF THE OPERATING MECHANISM
8. DIMENSION DRAWING OF THE CONTROL BOX
Type of operating
mechanism A
Without lock 296
With lock 306
A
231
94
53
106
409
70
4033
16
2x M10

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1251
XN
3 42 76 8 11109
21
S5
3 4
3 4
S9
1 2
43
S4
1 2
_
M
Motor with
permanent
magnets
X.5
X.15 X.11
X.13
X.14 X.12
X.16
X.23
X.20
X.19
9. WIRING DIAGRAM OF NSW30-3 – MOTOR WITH PERMANENT MAGNETS
XN – terminal block of the operating mechanism
S4, S5 – limit switch
S9 - microswitch of the electric lock
M– electric motor
X– terminal block of the control system
Type of controller 1-2 3-4
Manual control
Electric control
S9 - microswitch of the electric lock

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10. WIRING DIAGRAM OF NSW30-4 – SERIAL MOTOR
1251
XN
3 42 76 8 11109
21
S5
3 4
3 4
S9
1 2
43
S4
1 2
_
M
DC motor
X.5
X.15 X.11
X.13
X.14 X.12
X.16
X.23
X.20
X.19
X.17 X.18
XN – terminal block of the operating mechanism
S4, S5 – limit switch
S9 - microswitch of the electric lock
M– electric motor
X– terminal block of the control system
Type of controller 1-2 3-4
Manual control
Electric control
S9 - microswitch of the electric lock