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Drilling Rig Electrical · Ross Hill / NOV

Ross Hill DC Module

The DC regulation module in Ross Hill and NOV SCR drilling systems — part 0522-2400-23, with 0522-2400-21 cross-referencing to NOV 6415-2400-21.

The 0522-2400-23 is the DC control module in Ross Hill and NOV SCR drilling systems — it sets the SCR phase angle from the driller's handwheel setpoint and runs the current and speed regulation loop for stepless DC motor control. The related 0522-2400-21 cross-references to NOV 6415-2400-21. Send the number and we'll tell you what we can find.

Independent sourcing, not an authorized distributor. Ross Hill and NOV are trademarks of their respective owners, used for reference only. Condition is disclosed before sale.

Status

Part number0522-2400-23
EI referenceEI-0522-2400-23
Related number0522-2400-21 = NOV 6415-2400-21
SystemRoss Hill / Hill Hayes / NOV SCR drilling
Module typeDC control — regulation
FunctionSets SCR phase angle from the handwheel setpoint; current / speed regulation for stepless 0–750 V DC motor control
Pairs withAC control module 0521-2500-14
ConditionNew old stock, surplus, used-tested, reconditioned

The DC modules are where NOV used distinct numbers; verify 0522-2400-21 versus 6415-2400-21 against the label.

The DC drilling motor it regulates

MotorGE752 high-torque DC drilling motor (industry standard)
Rated voltage750 V DC
Rated currentabout 1185 A
Powerabout 1130 HP (200–1200 kW range)
Construction12-pole, brush-type DC
Base speedabout 1040 RPM
CoolingSeparately-driven blower (about 2800 SCFM)

Typical GE752 ratings shown for reference; verify against the motor nameplate.

Condition & sourcing

We supply Ross Hill and NOV DC modules as new, new-surplus, used-tested, and reconditioned, with condition disclosed before sale and photos on request. We are an independent surplus and sourcing company, not an authorized distributor.

FAQ

What is the Ross Hill DC module?
It is the DC control board in a Ross Hill / NOV SCR drilling drive, part 0522-2400-23. It sets the SCR phase angle from the handwheel setpoint and runs the current and speed regulation loop.
What is the part number for the Ross Hill DC module?
The DC control module is 0522-2400-23. The related 0522-2400-21 cross-references to NOV 6415-2400-21.
Is the Ross Hill DC module the same as the NOV DC module?
The DC modules are the main place NOV used distinct numbers. 0522-2400-21 maps to NOV 6415-2400-21. We verify the exact dash number against the label before quoting.
Can you supply a replacement?
Yes. We source the DC control module as new old stock, surplus, used-tested, and reconditioned, with condition disclosed before sale.

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Request a Quote

or send the part number to sales@edmundsonindustrial.com · (832) 975-8827 · Houston, TX. Same-day response on most requests.

Related

Send 0522-2400-23 (or 6415-2400-21) and your need-by date.

Condition disclosed before sale. Same-day response on most requests.

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