WESTINGHOUSE MAX-VH ™/ MAX-VHP ™ Series vertical hollow shaft induction motor

WESTINGHOUSE MAX-VH ™/ MAX-VHP ™ Series vertical hollow shaft induction motor

Brand positioning and core product values

TECO Westinghouse, as a globally renowned electrical brand with a century of technological accumulation, has launched the MAX-VH ™/ MAX-VHP ™ The series of vertical hollow shaft squirrel cage induction motors are specially designed for industrial heavy-duty scenarios, with a core positioning of "high reliability, strong load adaptation, and high-efficiency energy-saving" power solutions. The product covers a power range of 7.5-1000 HP, suitable for low voltage (230V/460V) and medium voltage (2300V/4000V) power supply, with synchronous speeds covering 900/1200/1800 RPM. It is widely used in industrial equipment such as pumps and compressors that require direct coupling transmission. Its core value lies in stable operation in environments ranging from -15 ° C to 40 ° C, high humidity, and even hazardous environments (Class 1, Div 2) through "high rigidity structural design, F-class insulation system, and multi protection level adaptation". At the same time, with excellent performance such as a 1.15 service factor and 125% overspeed tolerance, it ensures industrial production continuity. Coupled with a 36 month warranty, it provides users with long-term and worry free power support.

Overview of Product Core Technical Parameters

（1） Basic specifications and certification standards

Category specific specifications

Product series MAX-VH ™ (Standard efficiency) MAX-VHP ™ (NEMA High Efficiency Level)

Motor type: squirrel cage induction motor (SCIM)

Power range: Low voltage: 7.5-800 HP; Medium voltage: 200-1000 HP

Voltage adaptation for low voltage: 230V/460V (compatible with 208V), only 460V for 150 HP and above;

Medium voltage: 2300V/4000V

Frequency adaptation 60 Hz (compatible with 50 Hz for low-voltage models)

Synchronous speeds of 900 RPM, 1200 RPM, 1800 RPM

Service coefficient of 1.15 (sine wave power supply, continuous operation); 1.0 (PWM power supply)

Weather Protected Type 1: IP23;

TEFC type (Completely Enclosed Fan Cooled): IP55

Certification standard design standards: NEMA MG-1, MG-13;

Test standard: IEEE-112 (Method B/F);

Hazardous environment certification: CSA Class 1, Div 2, Group B, C, D (Temp T3)

Warranty period of 36 months (from production date)

（2） Structure and material parameters

Category specific specifications

Core structure rack/flange bracket/upper bracket: high-grade cast iron;

Shaft system: 1045 carbon steel hollow shaft (high strength, high wear resistance);

Core: C5 grade cold-rolled insulated electromagnetic steel plate;

External components: aluminum alloy external fan, steel plate vertical splash cover

Winding and insulated stator winding: Low voltage is high pulse withstand polyester enameled copper wire+mica insulation, medium voltage (449TP and above) is mica+glass insulation formed coil;

Insulation level: F-class insulation system (Class B temperature rise);

Immersion treatment: Low pressure phenolic alkyd resin paint (2 immersion baking+1 spraying), medium pressure VPI epoxy paint

Rotor structure 449TP and below: aluminum conductor squirrel cage type (end ring and fan blade integrated casting);

5000 frames and above: copper or copper alloy bar squirrel cage type

Surface treatment: Phenolic anti rust primer+clear coat surface coating, standard color: RAL 7032 textured powder coating

Installation method: flange installation (IM3011), matched with P-Base base (compliant with NEMA MG1-18-238 standard)

（3） Key performance parameters

Category specific specifications

Temperature rise resistance method measurement: ≤ 105 ℃ at S.F.1.15; S. F.1.0 ≤ 80 ℃

Tolerance for overspeed: 125% synchronous speed (lasting for 2 minutes);

Overturn: 160% rated torque (lasting for 15 seconds);

Variable frequency adaptation: 10:1 variable torque (inverter operating condition)

Low voltage startup methods: direct startup, star delta startup, partial winding startup, VFD startup;

Medium voltage: direct start, VFD start

Low voltage models with power factor (FL PF): 81.0% -90.7%; Medium voltage models: 75.6% -87.3%

Full load efficiency (FL EFF) MAX-VH ™： 88.5%-95.4%； MAX-VHP ™： 91.0% -96.2% (NEMA High Efficiency)

Downward thrust 2600 LBS-33800 LBS (graded by power and frame number)

Product System and Core Series Detailed Explanation

（1） Low voltage series (230V/460V)

1. MAX-VH ™  Standard Efficiency Series (VH Model)

Power coverage: 7.5-400 HP (1800 RPM), frame number 213TP-449TP.

Example of core parameters:

VH0754FP (75 HP): Full load efficiency 94.1%, power factor 84.5%, 460V full load current 88.5A, downward thrust 6000 LBS, transport weight 989 LBS.

VH4004FP (400 HP): Full load efficiency 95.4%, power factor 88.5%, 460V full load current 444A, downward thrust 13200 LBS, transport weight 3818 LBS.

Applicable scenarios: General industrial scenarios with moderate energy efficiency requirements, such as ordinary water pumps and fan drives.

2. MAX-VHP ™  Efficient series (VHP/VHTP models)

Power coverage: 7.5-800 HP (1800 RPM), frame number 213TP-5810P, including customized fire pump models (compliant with ANSI/UL 1004-5).

Example of core parameters: