13755314420

Explosion-proof asynchronous blown electric motors ВAO8К-450,560,630, ВAO8К-1600-6Д и ВAO8KУ-630 are designed for continuous operating mode S1 from AC network, 50 Hz or 60 Hz as drives for various mechanisms used in places of operation, where by production technology formation of explosive concentration of gases, vapor and dust is possible. They are enterprises of the fuel and energy complex, mining and processing industries: coal, oil, chemical, gas and others. Electric motors of ВAO8K type have a wide scope, and they are intended to build up various pumps, fans, mixers, elevating mechanisms, etc.

Description:

Electric motors of ВAO8KУ type are specially developed to drive coal-exhausters in mines, where coal is mined by
hydroway, but they also can be widely used for other mine mechanisms.
ВAO8K motors are designed and made to replace motors of ВAO2 and ВAO5К types and meet their installation
and mounting dimensions, and they are also designed to replace similar motors made by other manufacturers.

Explosion-proof versions:
ВAO8К-450, 560, 630 – 1 ExdIIBT4 or РВ-4В; PBExdI;
ВAO8К-1600-6D – 1ExdIIBT4
ВAO8КУ- РВ-4В; PBExdI;
ВAO8К for voltage 3000 V – 1 ExdIIBT4.
Climatic versions: У2; Т2; ХЛ2; У5; Т5.

Constructive mounting arrangement: IM 1001 – horizontal, on feet with two end shells, with one free shaft end.
Protection degree: case and terminal box – IP54, housing of the outer fan – IP20.
Cooling method: ICA 0151 – blown, with self-ventilation.

The motors are coupled with the driving mechanism by means of gear or elastic sleeve-bolt couplings (for motor
with 750, 1000, 1500 rpm); gear, elastic sleeve-bolt or plate couplings (for motors with 3000 rpm). The motors are
manufactured with one cylindrical shaft end in accordance with GOST 12080 and delivered completely with keys by
GOST 23360 (electric motors ВAO8К-450, 560 – with one key, ВAO8К, ВAO8КУ-630, ВAO8К-1600-6Д – with two
keys).

Motor run is direct, it is realized both with rated voltage, and with mains voltage reduction during the start up to 0,8
Unom. Motors ВAO8К-450, 560, 630 with 1500, 1000, 750 rpm, ВAO8K-1600-6Д with 1000 rpm, ВAO8KУ with
1500 rpm are designed for 2400 starts per a year; they enable three cold starts running, two hot starts with interval
between starts from 3 to 5 minutes, and with allowable quantity of starts per a day not over than 8.
Motors ВAO8К-450, 560 with 3000 rpm are designed for 1000 starts per a year, they enable two cold starts with
interval between starts not less than 15 minutes or one hot start. Next starts should be done not earlier than in 3
hours of motor operation.
The motors are manufactured for voltage 3000, 6000 and 10000 V.
Motors have rolling-contact bearings and resistance temperature detectors to control temperature in bearings.
Motors with 3000 rpm are provided with bearings of the firm SKF. Motors with other polarity are provided with such
bearings at a customer’s request.
Lubrication of the bearings is consistent, re-lubrication can be done without motor stop. For motors ВAO8К-560-2
(except for ВAO8К-560-500-2, 630-2, 400-2Д) – liquid independent lubrication.

Winding insulation materials belong to heat-resistance class “F”.
Motors can be manufactured with the device monitoring temperature of the stator winding, bearings, casing and
controlling vibration. For such modifications additional outlet boxes are provided on the stator case.

Variants of motor configuration:
1) Variant 1 (base). The motor is provided with УСВТ or УСВТ М device controlling vibration rate and
temperature (climatic versions У2, Т2, У5, Т5).
УСВТ is designed to be used in explosive rooms and outdoor plants acc. to Chapter 7.3 in Electrical installation
code (for Russia) and Chapter 4 in НПАОП 40.1-1.32-01 (for Ukraine) and other normative documents, which
regulates the use of electrical equipment in explosive areas and in coal mines, which are dangerous by gas and
dust acc. to НПАОП 10.0-1.01-05 «Safety rules in coal mines».
The device is designed for:
– case temperature alarm (one temperature sensor), bearing temperature alarm (one temperature sensor per
one bearing), stator windings temperature alarm (one temperature sensor per one phase) in the electric machine
and bearing temperature alarm in the mechanism (one temperature sensor per one bearing);
– vibration rate alarm, vibration rate is measured on the bearing units of the electric machine and the
mechanism (one vibration rate sensor per one bearing unit);
– giving alarm lights about exceeding the limits of preset areas for temperature and vibration rate;
– giving warning lights about break or sensor absence;
– giving electrical signals (dry contact) for connecting external alarm and control devices.
– possibility to transfer and read data on the personal computer (PC) with using general industrial standard
«MODBUS»/RS485.

USVT-М device has additional possibility:
– to display current parameters of temperature and vibration rate of the electric motor and configurations of
sensors on the personal computer with corresponding software installed.
Depending on the order, the device is provided with different quantity of temperature and vibration rate sensors.
Example of device designation in the order is shown below.

Additionally, the device set can be provided with the device to disconnect the temperature and vibration rate
sensors in the mechanism.

2) Variant 2 Temperature of bearing assemblies is controlled by resistance thermal converters of TСМ type with
unique sensor curve characteristic НСХ: Rо=50 Ohm; W100 =1,428; four-wire connection circuit; 1 thermal
converter per one bearing assembly.
3) Variant 3 Temperature of bearing assemblies is controlled by manometric thermometers TKP-160 by TУ25-
12.091870-81 for thermal control of bearing assemblies, they are cut only in non-sparking electrical network of the
lamp and sound signaling devices.
4) Variant 4 Temperature of the stator winding, bearing assemblies of the motor by resistance thermal converters
of TС type, which have unique sensor curve characteristic НСХ: Rо=50 Ohm; W100 =1,428; four-wire connection
circuit; 1 thermal converter per one bearing assembly, 2 thermal converters per one winding phase.
At a customer’s request for Variants 2,4:
а) thermal converters with other unique sensor curve characteristic НСХ (Rо, W100), connection circuit (two-wire
or three-wire), can be installed to control temperature of the bearings;
б) thermal converters with other unique sensor curve characteristic НСХ (Rо, W100) and connection circuit (two-
wire or three-wire), can be installed to control winding temperature. Three thermal converters can be installed on
the winding phase with 2-wire or 3-wire connection scheme.

At a customer’s request for Variants 2,3,4 the special platforms can be installed on the end shells to control
vibration of the bearing supports. Quantity of platforms, overall and mounting dimensions and their location is
specified by the customer.

The terminal box has three power clamps and grounding clamps (internal and external); it enables inlet of the
armoured cable with copper or aluminum veins with dry bunching of cable conductors or filling with cable
compound.
Motors are manufactured for right and left senses of rotation (if you see from side of the driving mechanism). If the
customer has not specified the sense of rotation, VAO8К electric motors are manufactured with left sense of
rotation, and ВAO8КУ electric motors – with right sense of rotation.

The motor designation is decoded as follows:
ВАО – Motor type (explosion-proof asynchronous blown electric motor)
8КУ – Series number (К – made in Novaya Kakhovka; У- for coal-exhausters)
ХХХ – Frame (height of the axis of rotation, mm)
ХХХХ – Motor power, kW
Х – Number of poles
ХХ – Additional signs (Д, M,)*
ХХХ – Climatic construction

 

УСВТ designation is decoded as follows:
УСВТ – Device controlling vibration rate and temperature
ХХХ – Supply voltage of БП (supply unit): – 24V , or -36V, or – 127V, or – 220V
Х – Quantity of vibration sensors:
– 2 – only for the electric motor
– 4 – for the electric motor and mechanism

Х – Quantity of temperature sensors for bearings:
– 2 – only for the electric motor
– 4 – for the electric motor and mechanism

Х – Symbolic designation of availability of temperature sensor for the motor case:
– 0 – no
– 1 – yes

Х – Symbolic designation of availability of the terminal for temperature sensors for stator winding:
– 0 – no
– 1 – yes

ХХ – Symbolic designation of climatic version:
– У2, У5
– Т2, Т5

Technical data:

Type of the motor Power, kW Slip,  % Stator current, А Eff., % cosφ Istart/  Inom Мstartnom Мmах/  Mnom Type of explosion protection
Synchronous rotational speed n=3000 rpm, voltage 6000 V
ВАО8К-450-200-2 200 1,1 23,3 93,0 0,89 6,0 1,1 3,0 1ExdIIBT4

PBExdI

PB 4B

ВАО8К-450-250-2 250 28,6 93,5 0,9
ВАО8К-450-315-2 315 35,8 94,0 6,0 2,8
ВАО8К-450-400-2 400 44,8 94,4 0,91
ВАО8К-560-500-2 500 1,0 57,2 93,5 0,9

 

6,0 1,1 2,7
ВАО8К-560-630-2 630 71,7 94,0
ВАО8К-560-800-2* 800 0,8 90,4 94,6 6,5 1,1 2,9
ВАО8К-560-1000-2* 1000 112,5 95,0 7,0
Synchronous rotational speed n=3000 rpm, voltage 10 000 V
ВАО8К-560-200-2Д 200 1,0 13,9 93,1 0,89 7,0 1,0 3,0 1ExdIIBT4

PBExdI

PB 4B

ВАО8К-560-250-2Д 250 17,3 93,6
ВАО8К-560-315-2Д 315 21,7 94,1 6,0
ВАО8К-560-400-2Д 400 0,8 27,7 92,7 0,9 6,0 1,1 3,0
ВАО8К-560-500-2Д* 500 34,3 93,4 7,0 1,2 3,0
ВАО8К-560-630-2Д* 630 43,1 93,7
ВАО8К-560-800-2Д* 800 55,0 94,4 0,89 7,0 1,1 2,9
ВАО8К-560-1000-2Д* 1000 66,9 94,8 0,91
Synchronous rotational speed n=1500 rpm, voltage 6000 V
ВАО8К-450-200-4 200 1,2 23,1 93,8 0,89 6,0 1,1 2,6 1ExdIIBT4

PBExdI

PB 4B

ВАО8К-450-250-4 250 28,6 94,4
ВАО8К-450-315-4 315 35,9 94,8
ВАО8К-450-400-4 400 45,4 95,2 2,5
ВАО8К-560-500-4 500 1,0 56,3 95,0 0,9 2,5
ВАО8К-560-630-4 630 70,7 95,3
ВАО8К-560-800-4 800 89,6 95,5 6,5 2,8
ВАО8К-560-1000-4 1000 110,5 95,7 0,91
ВАО8К-630-1250-4

 

 

1250 0,9 139,8 95,6 0,9 6,0 1,0 2,3 1ExdIIBT4

PBExdI

PB 4B

ВАО8К-630-1600-4 1600 178,2 96,0
ВАО8К-630-2000-4 2000 222,3 96,2 2,4
 ВАО8КУ-630-1250-4 1250 139,8 95,6 2,3
ВАО8КУ-630-1600-4 1600 178,2 96,0 PBExdI

PB 4B

ВАО8КУ-630-2000-4 2000 222,3 96,2 2,4
Synchronous rotational speed n=1500 rpm, voltage 10 000 V
ВАО8К-560-200-4Д 200 1,0 14,0 93,0  

0,89

 

7,0

 

1,1 2,5 1ExdIIBT4

PBExdI

PB 4B

ВАО8К-560-250-4Д 250 17,4 93,4
ВАО8К-560-315-4Д 315 21,8 93,8 6,5
ВАО8К-560-400-4Д 400 1,0

 

27,6 94,1 0,89 6,5 1,1 2,7
ВАО8К-560-500-4Д 500 34,3 94,4 6,0 2,3
ВАО8К-560-630-4Д 630 42,5 95,0 0,9
ВАО8К-560-800-4Д 800 53,9 95,3 6,0
ВАО8К-630-1000-4Д 1000 1,0 67,3 95,3 0,9 6,0 1,1 2,3
ВАО8К-630-1250-4Д 1250 84,0 95,5 1,0
ВАО8К-630-1600-4Д 1600 107,1 95,8
ВАО8К-630-2000-4Д 2000 0,9 133,6 96,0 2,4
ВАО8КУ-630-1000-4Д 1000 1,0 67,3 95,3 0,9 6,0 1,1 2,3 PBExdI

PB 4B

ВАО8КУ-630-1250-4Д 1250 84,0 95,5 1,0
ВАО8КУ-630-1600-4Д 1600 107,1 95,8
ВАО8КУ-630-2000-4Д 2000 0,9 133,6 96,0 2,4

 

Type of the motor Power, kW Slip,  % Stator current, А Eff., % cosφ Istart/  Inom Мstartnom Мmах/  Mnom Type of explosion protection

Synchronous rotational speed n=1000 rpm, voltage 6000 V

ВАО8К-450-200-6 200 1,0 24,8 93,5 0,83 6,0 1,2 2,8 1ExdIIBT4

PBExdI

PB 4B

ВАО8К-450-250-6 250 30,1 93,9 0,85 1,1 2,7
ВАО8К-450-315-6 315 37,9 94,2 2,5
ВАО8К-560-400-6 400 0,7 47,8 94,7 6,5
ВАО8К-560-500-6 500 58,9 95,0 0,86 6,0 1,0 2,2
ВАО8К-560-630-6 630 74,0 95,2
ВАО8К-560-800-6 800 93,8 95,4 6,5 1,1 2,4
ВАО8К-630-1000-6 1000 0,9 116,8 95,8 1,0 2,3
ВАО8К-630-1250-6 1250 145,7 96,0
Synchronous rotational speed n=1000 rpm, voltage 10000 V
ВАО8К-560-400-6Д 400 0,9 28,4 94,4 0,86 6,2 1,0 2,2 1ExdIIBT4

PBExdI

PB 4B

ВАО8К-560-500-6Д 500 35,4 94,7 6,5 2,3
ВАО8К-560-630-6Д 630 44,6 94,9
ВАО8К-630-800-6Д 800 55,1 95,2 0,88 2,4
ВАО8К-630-1000-6Д 1000 68,8 95,4
 ВАО8К-1600-6Д 1600 0,6 114,6 96,0 0,84 5,0 1,0 2,1 1ExdIIBT4
Synchronous rotational speed n=750 rpm, voltage 6000 V
ВАО8К-450-200-8 200 1,0 26,0 93,7 0,79 6,5 1,2 2,8 1ExdIIBT4

PBExdI

PB 4B

ВАО8К-450-250-8 250 32,4 94,0
ВАО8К-560-315-8 315 0,8 38,7 94,3  

0,83

 

6,0 1,1 2,6
ВАО8К-560-400-8 400 49,0 94,5 1,0 2,2
ВАО8К-560-500-8 500 0,7 60,2 95,1 0,84
ВАО8К-560-630-8 630 75,7 95,3
ВАО8К-630-800-8 800 1,0 99,3 95,7 0,81 1,1
ВАО8К-630-1000-8 1000 122,4 95,9 0,82
Synchronous rotational speed n=750 rpm, voltage 10000 V
ВАО8К-560-315-8Д 315 1,0 23,3 94,2 0,83 5,5 1,0 2,2 1ExdIIBT4

PBExdI

PB 4B

ВАО8К-560-400-8Д 400 29,5 94,4 6,0 1,1 2,5
ВАО8К-560-500-8Д 500 36,6 94,9 6,5 2,4
ВАО8К-630-630-8Д 630 45,5 95,2 0,84 6,0 1,0 2,2
ВАО8К-630-800-8Д 800 57,6 95,5 6,5 1,1 2,3